Isaac Newton Institute of Chile in Eastern Europe and EurasiaCasilla 8-9, Correo 9, Santiago, Chile

email: inewton@terra.cl

@S0002-7537~93!22841-4#

The Isaac Newton Institute,~INI ! for astronomical re-search was founded in 1978 by the undersigned. The mainoffice is located in the eastern outskirts of Santiago. Since1992, it has expanded into several countries of the formerSoviet Union in Eastern Europe and Eurasia.

As of the year 2001 the Institute is composed of twelveBranches in eight countries.~see figure on following page!.These are: Armenia~19!, Bulgaria~28!, Crimea~27!, Kaza-khstan~17!, Kiev ~11!, Moscow~6!, Odessa~34!, Petersburg~24!, Poland ~13!, Special Astrophysical Observatory,‘‘SAO’’ ~29!, Tajikistan~8!, and Uzbekistan~19!. The quan-tities in parentheses give the number of scientific staff, thegrand total of which is 235 members.

1. RESEARCH IN CHILEBesides the above named Branches, the Chilean staff of

the Isaac Newton Institute is involved in collaboration withastronomers of the Observatory of Rome in several researchprojects using data secured from telescopes in Chile. Thestaff of the Isaac Newton Institute in Chile is composed ofGonzalo Alcaino, Director and President of the Corporation,William Liller, Senior Research Astronomer, Franklin Alva-rado, Research Associate, and Marcela Rodriguez is the act-ing secretary.

The primary research program of the Institute in Chilecontinues to be observational studies of globular clusters inthe Galaxy and the Magellanic Clouds. In addition, a numberof open clusters have been observed. In this field around 200papers have been published. Ongoing programs by WilliamLiller are a systematic sky patrol that takes in much of theSouthern Milky Way, the Magellanic Clouds, stellar photom-etry studies of the physics of comets and the archaeoas-tronomy of the islands of the Pacific Ocean, primarily EasterIsland.

Among the most relevant current projects is that fromdata secured with the first of the four 8m telescope units ofESO Very Large Telescope~VLT ! in Paranal. Alcaino, asPrincipal Investigator, has formed a group of italian astrono-mers, that has observed the White Dwarf cooling sequence inNGC 6397 the nearest globular cluster, which conforms afundamental step to constrain the age of the Universe. Cur-rent ongoing data reduction are perfomed by our associateGianni Marconi of the Rome Observatory now at ESO Para-nal with Franklin Alvarado in Chile, and Giuseppe Bono,Vincenzo Testa and Gloria Andreuzzi in Rome. CCD Photo-metric analysis has now been completed for the galacticglobular clusters NGC 1261, NGC 1851, NGC 3201 andNGC 6752. Several other research projects are now envis-aged with our italian associates, following the Convention ofscientific collaboration with the Rome Observatory of Feb-ruary 2000.

2. THE INI ARMENIAN BRANCHThe Isaac Newton Institute opened its Branch in June

2000. The formal Agreement has been signed with Prof. Ed-ward Khachikian, Director of the Byurakan AstrophysicalObservatory of the Armenian National Academy of Sciences.

The staff of the Isaac Newton Institute in Armenia are:Hamlet Abrahamian, Smbat Balayan, Kamo Gigoyan, ArmenGyulbudaghian, Lidia Erastova, Misak Eritsian, Susanna Ha-kopian, Haik Harutyunian, Arthur Karapetian, Edward Kh-achikian, Tigran Magakian, Norair Melikian, Areg Mickae-lian, Tigran Movsessian, Hripsime Navasardian, ArthurNikoghossian, Elena Nikoghossian, Artashes Petrosian andNorair Yengibaryan.

The Byurakan Astrophysical Observatory~BAO! is themain astronomical institution in Armenia and one of the mostimportant observatories of the Former Soviet Union. It wasfounded by the outstanding scientist Victor Ambartsumian in1946. First studies at BAO related with the instability phe-nomena taking place in the Universe, and this trend becamethe main characteristic of the science activity in Byurakan.Discovery of the stellar associations~1947!, the hypothesisabout activity of galactic nuclei~1958!, the famous First andSecond Byurakan surveys~FBS, 1965-80, and SBS, 1978-91!, discovery and study of many QSOs and Seyfert galax-ies, discovery of some 1000 flare stars, dozens of Superno-vae, hundreds of Herbig-Haro objects and cometary nebulae,works in the field of radiation transfer theory, are the mainscientific achievements of the Byurakan astronomers.Markarian, Arakelian and Kazarian galaxies are known to allastronomers working in the field of extragalactic astronomy.Among the most well-known astronomers who have workedat BAO are V.A. Ambartsumian, B.E. Markarian, G.A.Gurzadian, M.A. Arakelian, L.V. Mirzoyan, E.Ye. Kh-achikian, V.A. Ambartsumian has been the IAU President~1961-64!, IAU Vice-President~1948-55!, twice the ICSUPresident~1968-72!, he was the President of the ArmenianAcademy of Sciences during 1947-1993 and the Director ofBAO during 1946-1988.

At present, BAO has some 70 researchers, including 11Doctors of Science and 38 Candidates of Science~Ph.D.!.Many are members of IAU, EAS, EAAS~Euroasian Astron.Soc.!, and other international societies and organizations.Since 1999, the Director is Edward Khachikian. There are 3scientific divisions and 21 small research groups.

The main fields of scientific activity at BAO are: searchand multiwavelength studies of AGN and starburst galaxies,infrared and radio galaxies, young stellar objects, variablestars, clusters of galaxies, observational cosmology, theory ofcompact cosmic objects, and astrophysical applications ofmathematical physics. The traditional methods for investiga-tions are surveys, spectroscopic, photometric and polarimet-ric observations, statistics, direct and inverse theoreticalproblems. The Byurakan astronomers collaborate with scien-tists of France, Germany, Italy, UK, Spain, Russia, USA,

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Mexico, Japan, China, India, Chile, and other countries.Though the funding of science in Armenia is at very lowlevel, however the Byurakan astronomers work actively dueto the international collaboration and grants, and valuablecontribution in science. The main scientific instruments atBAO are: 2.6m telescope, and the 1m Schmidt telescope.

3. THE INI BULGARIAN BRANCHThe Isaac Newton Institute of Chile established its Bul-

garian Branch in July 2000. The formal Agreement wassigned with Prof. Georgi Ivanov, head of the Department ofAstronomy and the University Astronomical Observatory atthe St. Kliment Okhridski University of Sofia. The staff ofthe Isaac Newton Institute in Bulgaria includes representa-tives of all astronomical institutions in Bulgaria. These insti-tutions are: the Department of Astronomy at the St. KlimentOkhridski University of Sofia, the Institute of Astronomy andNational Astronomical Observatory at the Bulgarian Acad-emy of Sciences, and the Department of Physics, St. Kon-stantin Preslavski University of Shoumen.

The staff of the Bulgarian Branch of Isaac Newton Insti-tute consists of: Aleksander Antov, Ina Barzova, JordankaBorissova, Peter Duchlev, Tsvetan Georgiev, Valeri Golev,Ilian Iliev, Ljubomir Iliev, Georgi Ivanov, Dimitar Kolev,Renada Konstantinova-Antova, Radostin Kurtev, DianaKjurkchieva, Dragomir Marchev, Haralambi Markov, Nevi-ana Markova, Bojko Mihov, Petko Nedjalkov, Georgi Petrov,Tatiana Russeva, Liuba Slavecheva, Nedka Spassova, IvankaStateva, Nikolai Tomov, Mima Tomova, Todor Veltchev,Ivanka Yankulova, and Radoslav Zarnanov.

Founded in 1894, the Astronomical Observatory and De-partment of Astronomy of Sofia University is the oldest as-tronomical institution in Bulgaria. To the moment the De-partment is the only one responsible for the universityeducation in the field of astronomy and astrophysics in Bul-garia. The scientific activities of the Department staff mem-bers are in the fields of stellar content of Local Group gal-axies, OB associations, WR stars, AGNs, stellar pulsationsand variable stars.

The Institute of Astronomy together with its National As-tronomical Observatory at Rozhen, Rodopa Mountain, is thebiggest astronomical institution in Bulgaria. The Rozhen Ob-servatory is the only major observatory in Bulgaria with its2m Ritchey-Chretien-coude reflector and three smaller tele-scopes.

The main activities of the staff of the Institute of As-tronomy are: to carry out fundamental research in a broadrange of fields in astronomy and astrophysics, and to main-tain and secure the observational programs at Rozhen Obser-vatory. The Institute of Astronomy of the Bulgarian Acad-emy of Sciences was established in 1954. Its staff alsomaintains a smaller observatory around the sity of Belograd-chik where two small telescopes operate. The University ofShoumen was established 40 years ago as a regional univer-sity for North-East part of Bulgaria. Since 30 years someessential astronomical courses are offered there by the De-partment of Physics.

4. THE INI CRIMEAN BRANCHThe Isaac Newton Institute opened a Branch in Crimea, in

September 1997. The formal Agreement was signed byGonzalo Alcaino in Nauchny with Prof. Nikolay Steshenko,Director of the Observatory. Thereafter, the agreement, be-tween the Crimean Astrophysical Observatory of Ukraineand the Isaac Newton Institute of Santiago, Chile, was en-dorsed in an official document signed in Kiev by the Minis-try of Sciences and Technology of Ukraine, represented bythe Vice-Minister, Y.Dotsenko.

In June 2001, 14 new members were incorporated into thestaff of the Crimean Branch, therefore it was doubled. Thecurrent staff of the Isaac Newton Institute in Crimea are: IlyaAlekseev, Valery Bochkov, Natalya Bondar, Elena Dmit-rienko, Vasily Haneychuk, Lyudmila Karachkina, OlesyaKozlova, Valery Kotov, Victor Malanushenko, Nelly Merku-lova, Lubov Metik, Marina Mitskevich, Elena Pavlenko, Ser-gei Plachinda, Nina Polosukhina, Valentina Prokof’eva-Mikhailovskaja, Iraida Pronik, Vladimir Pronik, Igor Sa-vanov, Sergey Sergeev, Elena Sergeeva, Nikolai Sha-khovskoy, Anatoly Tarasov, Taisiya Tarasova, Teodor Tsap,Yuri Tsap, Yuri Yefimov.

The Crimean Observatory was the first major observatoryof the former Soviet Union~FSU! to enter the age of astro-physics. The beauty of the observatory site, the telescopesand the instruments together with a rich history and the cur-rent scientific activity of the astronomers make the Observa-tory a quite attractive place. For many years it was unique incombining active scientific research with teaching for stu-dents and tutorials in astrophysics. Many astrophysicists ofFSU were trained at the Crimean Observatory. Now theCrimean Astrophysical Observatory~CrAO! remains one ofthe largest scientific centers in the Ukraine and the FSU.

CrAO possesses modern equipment for astrophysical ob-servations over a wide spectral range from gamma-rays tometer radio waves of stars and galaxies as well as the Sunand solar system. The main part of the observatory is locatedat Nauchny, at an altitude of 600 meters. The instruments inuse are: the 2.6-m Shajn telescope, two 1.25-m telescopes,the 1.0-m Solar Tower telescope as well as a few other in-struments. There are 350 employees including about 100 sci-entists.

The members of the Crimean Branch are actively workingin different fields of astrophysics. Due to scientific interests,they entered on the 8 scientific projects:

Project 1: ‘‘Compact binaries: Cataclismic variables,black holes, symbiotic stars.’’ Investigators: Elena Pavlenko,Elena Dmitrienko, Anatoly Tarasov, and Natalya Bondar’.The aim of this project is to investigate the behaviour ofbinaries in order to study pecularities of their evolution. Ac-tive in photometric, polarimetric and spectroscopic observa-tions using the 2.6-m telescope equipped with a CCD Cam-era and a 1.25-m telescope equipped with a 5-channel,UBVRI photometer-polarimeter as well as a few other smalltelescopes.

Project 2: ‘‘Surface anomalies of the chemically peculiarstars.’’ Investigators: Victor Malanushenko, Igor Savanov,Marina Mitskevitch, and Nina Polosukhina. The aim of theproject is to broaden the knowledge of the pecularities of the

3ISAAC NEWTON INSTITUTE

atmospheres of the chemically peculiar stars of the uppermain sequence, using the coude spectrograph of the 2.6-mtelescope.

Project 3: ‘‘Continuum and emission lines variability inactive galactic nuclei.’’ Investigators: Vladimir Pronik,Sergey Sergeev, and Elena Sergeeva. The objective of thisproject is to investigate in detail the variability of emissionlines in the spectra of active galactic nuclei. The observationsare performed on the 2.6-m telescope with a CCD detector.

Project 4: ‘‘Variability of active galactic nuclei in opticaland infrared continuum.’’ Investigators: Iraida Pronik, NellyMerkulova, and Lubov Metik. The objective of the project isthe detailed investigation of the continuum variability of ac-tive galactic nucei in time scales of hours, days, months, andyears using tight series of the observations which have beencarried out at the Crimean Observatory since 1989 using the1.25-m telescope equipped with the UBVRI double- imagechopping photometer-polarimeter.

Project 5: ‘‘Study of selected blazars structure from pho-tometry and polarimetry.’’ Investigators: Yuri Yefimov andNikolai Shakhovskoy. The main purpose of the project is tostudy the structure of some bright blazars using prolonged~several years! simultaneous photometric and polarimetricobservations in optical regions from ultraviolet to near infra-red. The observations are carried out with the 1.25-m tele-scope equipped with UBVRI double-image chopping photo-polarimeter.

Project 6: ‘‘Seismology of the Sun and stars.’’ Investiga-tors: Valery Kotov, Teodor Tsap, and Vasily Haneychuk. Theaim of this project is to improve our knowledge about theSolar interior, rotation, magnetic activity and cycle using theobservations of the global Solar oscillations and mean mag-netic field of the Sun obtained with the Solar Tower tele-scope.

Project 7: ‘‘Solar and stellar activity.’’ Investigators: Ser-gei Plachinda, Taisiya Tarasova, Ilya Alekseev, Olesya Ko-zlova, and Yury Tsap. The aim of the project is to studymagnetohydrodinamical processes and magnetic activity onthe Sun and on the main- and pre-main sequence cool andred stars. Investigations are based on the theoretical re-searches, numerical simulations, direct measurements of stel-lar magnetic fields, photometric and spectrophotometric ob-servations, obtained with the use of the 2.6-m Shajntelescope equipped with Stokesmeter, and 1.25-m telescopeequipped with a 5-channel, UBVRI photometer-polarimeter.

Project 8: ‘‘Physical researches of Solar system smallbodies.’’ Investigators: Valentina Prokof’eva-Mikhailovskaja, Lyudmila Karachkina, and Valery Bochkov.The aim of this project is to broaden the knowledge on struc-tures and surface characteristics of asteroids belonged to dif-ferent spectral types and different asteroid’s families. The 0.5meter meniscus telescope coupled with the high sensitivedigital television system is used for photometric and spectro-photometric observations of asteroids.

5. THE INI KAZAKHSTAN BRANCHThe Isaac Newton Institute opened its Branch in April

2000. The formal Agreement has been signed with Prof.

Anatoliy Kurchakov, Director of the Fesenkov AstrophysicalInstitute of Kazakhstan.

The staff of the Isaac Newton Institute in Kazakhstan are:Gauhar Aimanova, Leonid Chechin, Edward Denissyuk,Sergey Efimov, Vladimir Kardopolov, Andrey Kharitonov,Ludmila Knyazeva, Ludmila Kondratyeva, Anatoliy Kurcha-kov, Tuken Omarov, Chingiz Omarov, Larisa Pavlova, Ma-rina Rud, Lubov Shestakova, Vladimir Tereshchenko, RashitValiullin and Emmanuil Vilkoviskij.

The beginning of the history of astronomy in Kazakhstanwas connected with the such remarkable event as the Solareclipse, that has taken place in September 21 of 1941. Whenthe observations of the solar eclipse were completed, someastronomers from Moscow and Leningrad stayed in Alma-Ata and organized The Institute of Astronomy and Physics.Then, in 1950 the Astrophysical Institute was distinguishedfrom as a self-maintained organization.

The actual staff of Institute consists of 122 members, 60of them are scientific researches. The major activities are:physics of nebulae and star-forming regions, dynamics ofgravity systems, absolute spectrophotometry of stars, studyof active Galaxies, physics of the Moon and planets, Solarphysics, the artificial Earth’s satellites.

The Institute manages the following two observatories:~1! The Observatory~ Almaty, Kamenskoe Plato! which pos-sesses: - 70 cm telescope~ Cassegrain!,equipped with spec-trograph for study of emission objects, such as galaxies withactive nuclei, planetary nebulae, stars with emission spectra.- 60 cm telescope~Cassegrain! of ‘‘Karl Zeiss’’ enterprise. Itis used for the study of planets.~2! Assy- Turgen Observa-tory ~Zailijskoe Ala-Tau, Assy- Turgen plato! possesses: -1-m telescope of ‘‘Karl Zeiss’’ enterprise, which is in usesince 1981; This instrument is equipped with electrophotom-eter for measurement of polarization of object’s radiation,and a spectrograph for a study of nebulae and stars. It has aswell a 1.5m telescope.

The main scientific achievements can be summarized as:The atlases of nebulae, which became the world standards;-The spectrophotometric catalogue contained the data on theenergy distribution in the spectra of thousands of stars; -Thespectral Catalogue of some dozens of Planetary Nebulae;-The discovery of some peculiar objects representing thetransient stage between a star with extended atmosphere anda planetary nebula; -The multicolor photoelectric observa-tions of more than twenty irregular stars; -The estimation ofthe formation epoch of the galactic clusters. The new methodof structure dynamics based on the corresponding generali-zation of the Infeld’s method in the common relativity;-Discovery of some moving features in spectra of some Sey-fert galaxies; -The revealing of the altitude variations, divid-ing stratosphere aerosolize into layers, based on monitoringof atmosphere; -The large cycle of the searches on analysisof the zonal structure of Jupiter’s cloudy cover.

6. THE INI KIEV BRANCHThe Isaac Newton Institute opened its Branch in August

2000. The formal Agreement has been signed with Prof. Pe-ter Berczik, Deputy Director, Main Astronomical Observa-

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tory in Kiev of the National Academy of Sciences ofUkraine.

The staff of the Isaac Newton Institute in Kiev are: PeterBerczik, Yurij Fedorov, Victor Khalack, Pavel Korsun, YurijKyzyrov, Pavel Malovichko, Sergey Nosov, Yakiv Pavlenko,Boris Shakhov, Leonid Shulman and Boris Zhilyaev.

The Main Astronomical Observatory~MAO! of the Na-tional Academy of Sciences of Ukraine came into being in1944. The Observatory is situated 12 km from the centre ofKiev, in the Golosiiv forest. Since 1975 MAO is headed byYa.S. Yatskiv, Member of the NAS of Ukraine. The depart-ments of fundamental astrometry, photographic astrometry,solar physics, and astrophysics were organized in 1958. Atpresent MAO includes the departments of astrometry, phys-ics of stars and galaxies, cosmic geodynamic, cosmic plasmaphysics, physics of bodies of the solar system, solar physics,the department of experimental astrophysics and atmosphericoptics, astrospace information and computing centre. TheObservatory offers postgraduate studentship and has a spe-cial academic council for conferring candidate’s and doctor’sdegrees in astronomy, astrophysics and engineering sciences.The Observatory Library contains some 66,000 printedbooks and journals. MAO has a publishing department, ex-perimental designing subdivisions. etc. MAO publishes thejournals Kinematics and Physics of Celestial Bodies andSpace Science and Technology and the Astronomical Calen-dar.

In 1970-1991 the Astrophysical Observatory on Peak Ter-skol in the Northern Caucasus~altitude 3100 m, near moun-tain Elbrus! was constructed by MAO as its high-altitudeobservation station. At present this observatory is a joint ven-ture of the NAS of Ukraine and the Russian Academy ofSciences. It forms part of the International Research Centrefor Astronomy, Medicine and Ecology. This Centre is headedby Dr. V. Taradii. The equipment of the Terskol Station con-sists of the 2-meter Ritchey-Chretien telescope, the Zeiss-600 telescope and two solar telescopes.

7. THE INI MOSCOW BRANCHThe Isaac Newton Institute opened its Branch in Moscow

in June 1992. The formal Agreement was signed with Prof.A.A. Boyarchuk, Director of the Institute of Astronomy ofRussian Academy of Sciences and, at that time, the Presidentof the IAU, and Prof. Anatoly Cherepashchuk, Director ofthe Sternberg Astronomical Institute of Lomonosov MoscowUniversity.

The Institute of Astronomy was established as the Astro-nomical Council of the USSR Academy of Sciences on De-cember 20, 1936. Originally, this organization had mainlycoordination functions in the Soviet astronomy. After the 2ndWorld War, it started its own scientific research. Togetherwith the Sternberg Institute, the Astronomical Council par-ticipated in the work on the General Catalogue of VariableStars, on behalf of the IAU. The scientific activity of theAstronomical Council considerably expanded after thelaunch of the first Sputnik, the Council became responsiblefor observations of artificial satellites and their use for spacegeodesy, geodynamics, and geophysics. Besides, it was en-gaged in basic research in the fields of physics and evolution

of stars, solar activity, physics of the Moon, stellar spectros-copy. In 1958, it established an observatory near Zvenigorod~Moscow Region!. In December 1990, the AstronomicalCouncil, already being in fact a scientific institute for manyyears, was formally reorganized into the Institute of As-tronomy of the USSR Academy of Sciences~since 1991, theInstitute of Astronomy of Russian Academy of Sciences!.

The history of Sternberg Astronomical Institute begins asearly as in 1831, when the Moscow University established anobservatory in Presnya district of Moscow. The present nameof the Institute is after P.K. Sternberg, Professor of MoscowUniversity and Director of its observatory, an expert in pho-tographic observations of the sky as well as in geodesy, andalso an active participant of the 1917 revolutionary events inRussia. In 1931, three astronomical institutions of Moscow:Research Institute for Astronomy and Geodesy, State Astro-physical Institute, and the University Observatory merged toform Sternberg Astronomical Institute. This research instituteis the base for astronomical education in the Moscow Uni-versity. Its fields of research cover practically all fields ofmodern astronomy and astrophysics.

The staff of the Isaac Newton Institute Moscow Branchnow includes Leonid Berdnikov, Alexander Ipatov, AlexeyMironov, Anatoly Piskunov, Nikolai Samus, and OlgaSilchenko. In 2000–2001, Berdnikov was continuing photo-electric and CCD observations of Galactic Cepheids.Silchenko was studying chemically distinct nuclei in diskgalaxies on the base of observations with the Russia’s6-meter telescope~Special Astrophysical Observatory -SAO, Northern Caucasus!. Samus was participating in spec-troscopic studies of individual stars in globular clusters, incollaboration with the members of the Isaac Newton InstituteSAO Branch. Ipatov, Mironov, Piskunov and Samus alsocontinued reductions of CCD photometry in globular clus-ters.

After eight years of assessing and reducing data obtainedat La Silla and Las Campanas by Alcaino and his collabora-tors, astronomers at the Russian Branch of the Instituto IsaacNewton have succesfully produced more than thirty papers,basically, on CCD photometry of stars in stellar clusters andalso in the field of chemically decoupled nuclei of galaxies.

8. THE INI ODESSA BRANCHThe Isaac Newton Institute opened its Branch in May

2000. The formal Agreement has been signed with Prof. Val-entin Karetnikov, Director of the Astronomical Observatoryof Odessa National University.

The staff of the Isaac Newton Institute in Odessa are:Sergey Andrievsky, Ivan Andronov, Kirill Antonyuk, AlexejBaklanov, Yuri Beletsky, Stanislav Belik, Vladimir Bezden-ezhnyi, Osman Chahrukhanov, Nikolaj Chernykh, IrinaChernyshova, Lidia Chinarova, Nikolay Dorokhov, TatyanaDorokhova, Irina Egorova, Anastasiya Gamarova, LyudmilaGlazunova, Vera Gopka, Nadiya Gorlova, Alexander Ha-levin, Sergey Kolesnikov, Sergey Korotin, Valery Kovtyukh,Larisa Kudashkina, Vladislava Marsakova, Tamara Mish-enina, David Mkrtichian, Victor Nazarenko, AlexanderPikhun, Vasilij Rumyantsev, Leonid Shakun, Fedor Sirotkin,Sergey Udovichenko, Igor Usenko, Alexander Yushchenko.

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Odessa is a rather large town~with more than one millioncitizens! situated on the Black Sea coast. Founded in the endof XVIII century Odessa is full of beautiful sights and cul-tural traditions. Many famous people lived there. Pushkin,Mendeleev, Mechnikov and Korolev are among them. More-over Odessa is the hometown of one of the greatest astro-physicists of XX century - George Gamow.

Odessa Astronomical Observatory~OAO! was establishedon August 3, 1871 as a part of Novorossijsky~now- OdessaNational! University. It was first headed by Prof. L.F-.Berkevich, a distinguished specialist in celestial mechanics.An exceptional instrument was acquired to perform astro-metrical observations - meridian circle by famous Repsold’scompany. Astrophysical research began in 1881 with the ad-vent of a new director- astrophysicist Prof. A.K.Kononovich.Under his directorship, the OAO was turned into a truly re-search institution equipped with first-class instruments.A.K.Kononovich was one of the Russian pioneers in astro-physics. He conducted active research of Sun, photometry ofSolar system small bodies, etc. Many of his students becamewell known scientists like A.P.Ganskij, A.S.Vasil’ev, R.Orb-inskij, N.N.Donich and others. In 1912 a distiguished as-tronomer, later academic A.Ya.Orlov, initiated exploring anastro-geophysical direction at OAO: tidal deformations ofthe Earth and gravimetry. At that same time monitoring ofvariable stars began ~G.A.Lange, V.P.Zesessevitch,V.V.Sharonov!. Prof. K.D.Pokrovsky, who came afterA.Ya.Orlov, continued to expand the range of scientific re-search: comets, asteroids, double stars, photometry and spec-troscopy of stars of different types were added to the list ofactivities of Odessa astronomers.

In 1945, a famous astronomer, talented organizer andpopularisor of science, Prof. V.P.Zessevitch took the direc-tors’ chair. His primary interest lay in variable stars. He con-ducted more than 200,000 observations of variable stars ofvarious types, published more than 600 papers and mono-graphs. Just at the end of World War II the number of obser-vatory staff was only 5 people, but steadily grew since 1950.OAO occupied one of the first places in the USSR in variablestars search as well as other fields. V.P.Zessevitch initiatedconstruction of several field observational stations and later-mountain observatories on the Caucasus and Pamire. Sys-tematic observations on the 7- camera astrograph began, andat present OAO possesses a unique collection of sky nega-tives. Hundreds of papers on variable stars were made usingthis material. In 1993 the staff of OAO grew up to 150 sci-entists, considerably increased the spectrum of scientific re-search: physics and evolution of stars, physics of small bod-ies of the Solar System, precise stellar photometry, etc.

Contacts with foreign colleagues are largely extended. In-ternational conferences are held each year: dedicated to vari-able stars and Gamow memorial conference. In 1999 an an-nual summer schools for young scientists started to operate.At present OAO is a modern research organization. Beinginvolved in fruitful collaboration with Isaac Newton Instituteof Chile Odessa Astronomical Observatory has significantlyrisen level of its scientific investigations in modern astro-physics.

The investigators incorporated to the Isaac Newton

Branch are actively working in the following six fields ofresearch:

Project 1: ‘‘Periodic and Aperiodic processes in stars’’:Investigators: Ivan Andronov, Larisa Kudashkina, SergeyKolesnikov, Alexander Halevin, Vladislava Marsakova,Lidia Chinarova, and Kirill Antonyuk. The aim of the projectis to elaborate additional criteria for classification of variablestars of different types-cataclysmic~highly magnetized, po-lars, intermediate polars, weakly magnetic positive and nega-tive superhumpers, nova-likes! based on the polarimetric ob-servations of these stars at a time resolution from seconds toyears; long-periodic on time scales from months to decades;to elaborate corresponding mathematical methods. Multisiteobservational programs of polars. This group uses the obser-vations of artificial satellites.

Project 2: ‘‘Spectral investigations of different typestars’’: Investigators: Sergey Andrievsky, Valery Kovtyukh,Tamara Mishenina, Sergey Korotin, Igor Usenko, IrinaChernyshova, Nadiya Gorlova, Yuri Beletsky, and IrinaEgorova. The aim of the project is the investigations ofchemical composition of stars of intermediate masses on dif-ferent stages of evolution: cepheids, nonvariable supergiantsand their ancestors, B-stars of the Main Sequence and alsometal-poor stars, blue stragglers and lambda Bootis typestars. Methods: high dispersion spectral observations fromwestern observatories and Russian 6 m telescope. LTE andnon LTE analysis of chemical composition.

Project 3: ‘‘Astroseismology of single and eclipsing bi-nary stars’’: Investigators: David Mkrtichian and VictorNazarenko. Studies of pulsating roAp, lambda Boo, deltaScutti and eclipsing binary stars using the asteroseismic andnumerical hydrodynamical methods. Asteroseismic methodsare based on high-precision multisite photometry and high-resolution spectroscopic observations of roAp, lambda Booand delta Scutti stars and also for precise determinations ofmass transfer rates in eclipsing binaries. Hydrodynamicalsimulations of masstransfer in different binary systems is be-ing used for quantitive study of morphology of gas streamsand its observational manifestations.

Project 4: ‘‘Heavy elements in Stellar Atmospheres’’: In-vestigators: Alexander Yushchenko, Vera Gopka and DavidMkrtichian. The main aim of this group are the investigationsof abundances of heavy and superheavy elements in the at-mospheres of stars of different types. Determinations of evo-lutionary stages and ages of these stars using cosmochronol-ogy. Investigations of chemical evolution of the Galaxy.Investigations of surface inhomogeneities in the atmospheresof B and A stars. Methods: High and superhigh resolutionspectroscopy from UV to IR.

Project 5: ‘‘Photometrical Investigations of VariableStars’’: Investigators: Sergey Udovichenko, Nikolay Dor-okhov, Tatyana Dorokhova, Vladimir Bezdenezhnyi, and Al-exander Yushchenko. The main aim of group is photometri-cal and spectral investigations of RR Lyraes, delta Scutti andother types of variable stars. Special attention will be de-voted to RR Lyraes. Fourier analysis of photometric obser-vations of RR Lyrae on the 15 years time interval perfomedin Odessa Observatory.

Project 6: ‘‘Gravitational Lensing’’: Investigators: Alex-

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ander Yushchenko, Nikolay Chernyh, Vasilij Rumyantsev,and Osman Chahrukhanov. The main aim of this group arethe investigations of lensing properties of globular clusters.We predicted observational tests that can confirm the impor-tant role of lensing by globular clusters. It will help us toobserve high-redshift objects with middle class telescopes,investigations of weak gravitational lensing by galaxies onthe observation of quasi-stellar objects.

9. THE INI PETERSBURG BRANCHThe Isaac Newton Institute opened its St. Petersburg

Branch in September 2000. The formal Agreement has beensigned with Prof. Veniamin Vityazev, Director of the Astro-nomical Institute of St.Petersburg State University in Russia.The staff members belong to all major astronomical centersin St.Petersburg, such as the Pulkovo Observatory and theInstitute of Applied Astronomy.

The staff of the Isaac Newton Institute in St.Petersburgare: Ekaterina Aleshkina, Anisa Bajkova, Yurij Baryshev,Yulia Chernetenko, Alexander Gromov, Vladimir Hagen-Thorn, Vladimir Il’in, Vsevolod Ivanov, Tamara Ivanova, Al-exander Kholtygin, Iraida Kozlova, Alexei Kritsuk, ValeriLarionov, Leonid Parfinenko, Elena Pitjeva, Mikhail Pogo-din, Vladimir Reshetnikov, Yuriy Rusinov, Elena Skurikhina,Michail Sveshnikov, Olga Vasilkova, Nikolai Voshchinnikov,Eleonora Yagudina and Ruslan Yudin.

The Astronomical Institute of Petersburg State Universityis one of the best known astronomical organizations in Rus-sia. It was established in 1881 as Astronomical Observatoryat the Chair of Astronomy of St. Petersburg University~theChair was orgzanized in 1819!. Since 1999 it is entitled asSobolev Astronomical Institute. The staff of the Institute in-clude about 60 scientists. The main fields of research arecosmology, observations of active galaxies and variablestars, physics and evolution of stars, solar physics, dynamicsof gravity systems, celestial mechanics, astrometry, cosmichydrodynamics, theory of radiation transfer, light scatteringtheory, astrospectroscopy and development of special astro-nomical software.

The Main Astronomical Observatory~Pulkovo Observa-tory! opened in 1839 was the first astronomical institution inRussia. For a long time, it was the principal observatory inRussia and USSR. The current staff of the observatory con-sist of 160 scientists. The research areas are radioastronomy,physics of galactic nuclei, X-ray sources and young stars,solar physics, solar-terrestrial relations, celestial mechanicsand stellar dynamics, astrometry, geophysics, developmentof astronomical methods and construction of optical devices.The observatory also develops cosmic projects such as:‘‘Struve,’’ Geobs‘‘, ’’Stereoscope‘‘.

The Institute of Applied Astronomy was founded in 1987due to the decree of the Academy of Science of USSR forrealization of the biggest national astronomical project-establishment of the very long baseline radio interferometri-cal network ’’QUASAR‘‘. Over 130 scientists work in theInstitute. Main field of research are in radioastronomy, rela-tivistic celestial mechanics, radioastrometry, ephemerides as-tronomy, cosmic geodesy, geodynamics, development of as-

tronomical software, data processing methods, creation ofhardware for radioastronomy.

10. THE INI POLISH BRANCHThe Isaac Newton Institute opened its Branch in Poland in

May 2001. The formal Agreement has been signed with Prof.Janusz Gil, Director of the Kepler Astronomical Center ofZielona Gora and Resident Director Prof. Andrzej Maciejew-ski in charge of inviting a group of selected astronomersfrom main Polish Astronomical Organizations. Among thesecenters are the Warsaw University Observatory, NicolausCopernicus Astronomical Centre, Turun Centre for As-tronomy and Astronomical Units from Universities..

The staff of the Isaac Newton Institute in Poland are:Krzysztof Belczynski, Slawomir Breiter, Janusz Gil, Krzysz-tof Gozdriewski, Tomasz Kwiatkowski, David Khechinash-vili, Jacek Kreiowski, Andrzej Maciejewski, George Me-likidze, Maciej Mikolajewski, Michal Ostrowski, KrzysztofRochowicz and Toma Tomov.

This Branch was established following the suggestion ofProf. Andrzej Maciejewski, in his position as Chair of theDepartment of Astronomy and Astrophysics of Torun Centreof Astronomy. This organization is a part of the Faculty ofPhysics and Astronomy of the Nicolaus Copernicus Univer-sity, created in 1997 by a union of Torun Radio AstronomyObservatory and the Institute of Astronomy.

The Nicholas Copernicus University in Torun set up in1945, is the biggest university in Northern Poland and out-standing in terms of scientific potential. Torun is one of theoldest and, in the past, one of the richest cities in Poland,lying on the river Vistula, about 200 km north-west ofWarzaw..

11. THE INI SAO BRANCHThe Isaac Newton Institute opened its Branch in May

2000. The formal Agreement has been signed with Prof. YuriBalega, Director of the Special Astrophysical Observatory~SAO! in Russia.

The staff of the Isaac Newton Institute in SAO are: YuriBalega, Gregory Beskin, Alexander Burenkov, Victor Bych-kov, Eugene Chentsov, Sergei Fabrika, Timur Fatkhullin,Yuri Glagolevskij, Gazinur Galazutdinov, Olga Galazutdi-nova, Valentina Klochkova, Alexei Kniazev, Victoria Koma-rova, Alexander Kopylov, Lidia Makarova, Faig Musaev,Inna Panferova, Vladimir Panchuk, Vladimir Plokhot-nichenko, Eugene Pluzhnik, Alexander Pramsky, SimonPustilnik, Iosif Romanyuk, Alla Shapovalova, MargaritaSharina, Zalikha Shkhagosheva, Vladimir Sokolov, NikolaiTikhonov and Andrei Ugryumov.

The Special Astrophysical Observatory~SAO! was estab-lished in June 1966 as a research institute of the Departmentof General Physics and Astronomy of the USSR Academy ofScience. The principal instruments of the Observatory are theoptical telescope BTA~Big Telescope Azimuthal! with the 6meter main mirror and the radio telescope RATAN-600~Ra-dio Telescope of the Academy of Science! with the ringmulti-element antenna 600 meter in diameter. The observa-tory performs telescope observations under programs ap-

7ISAAC NEWTON INSTITUTE

proved by the Allocation Committee and carries out its ownfundamental research in the field of astrophysics.

At present SAO is the only Russian center for ground-based observations of the Universe. In Russia the observa-tory furnishes 80 percent of observational data in the field ofoptical and radio astronomy . The telescopes BTA andRATAN-600 have the common use status allowing a broadintegration with the world astronomical community. Re-search activity in SAO is conducted by 110 researchers in 15groups. The investigators incorporated to the Isaac NewtonBranch are working in the following fields:

The Laboratory ’’Structure‘‘ performs the CCD photom-etry and the spectroscopic study of Blue Compact Galaxies~BCG! from the First Byurakan Survey. The main goal of theproject is the investigation of the spatial distribution of low-mass galaxies and modeling of the formation of the largescale structure of the Universe. Many new emission-line andblue compact galaxies were discovered with the 6-m tele-scope.

The Stellar Spectroscopy Laboratory studies the chemicalcomposition and the evolution of the stellar population in ourGalaxy. The main attention is devoted to objects on the lateststages of stellar evolution.

The Gamma Burst Study Group performs the CCD pho-tometry of optical afterglows of gamma ray bursts and theirhost galaxies using the standart Johnson photometric system.From the comparison of the spectral energy distribution innearby galaxies and the observed afterglows photometry theresearchers define probable types of parent galaxies.

Main aims of the Laboratory of Relativistic Astrophysicsare focused on studying the energy transformation mecha-nisms taking place in strong gravitational and magneticfields. These fields are assosiated with nonstationar processesin black holes, pulsars, white dwarfs and flashing stars.

The Laboratory of Large Scale Structure is mainly con-centrated on the CCD photometry of nearby dwarf galaxies.From the study of their distances, kinematics and structure,the main characteristics of the Local Group of galaxies arederived.

The Laboratory of High Angular Resolution Methods per-forms the speckle interferometric study of binary and mul-tiple stars with the diffraction- limited resolution of the 6-mtelescope in the visible and in the infrared spectral region.Stellar fundamental parameters are derived for differenttypes of stars from computed speckle interferometric orbitsand magnitude differences . The main attention is given tostars at the lower end of the main sequence.

12. THE INI TAJIKISTAN BRANCHThe Isaac Newton Institute opened its Branch in July

2000. The formal Agreement has been signed with Prof. Pu-lat Babadzhanov, Director of the Institute of Astrophysics ofthe Academy of Sciences of Tajikistan.

The staff of the INI Tajikistan Branch are: Obid Alimov,Pulat Babadzhanov, Khursand Ibadinov, Subhon Ibadov,Gulchehra Kokhirova, Natalia Konovalova, Nasridin Mini-kulov and Fanisa Tupiyeva.

The modern astronomy in Tajikistan began in 1932 afterthe end of the work of Tajik-Pamir complex expedition

~1928-1932! which appreciated rather favorable astroclimaticconditions and advantageous geographical location of Tajiki-stan. In 1932 a Tajik Astronomical Observatory~TAO! wasorganized in the outskirts of Dushanbe. The principal direc-tions of scientific research for the Observatory, namely, me-teors, comets, and variable stars, were chosen taking intoaccount the geographical location and climatic conditions ofTajikistan. These direction, alongside with others, remain asthe main to this day.

In 1958 on the base of the observatory, the Institute ofAstrophysics of the Tajik Academy of Sciences was created.It consisted of three departments: Department of meteor as-tronomy, Deparment of comets, Department of variable stars.Afterwards the Department of theoretical astrophysics~1962!, Laboratory of experimental astrophysics~1972!, andDepartment of astrometry~1975! were created. For subse-quent 30 years after the creation of the Institute, the follow-ing three its modern observational bases were build:

1. In 1963-1971 the Gissar astronomical observatory~Gis-sAO! was build at a distance 14 km south-west from Dush-anbe. It domes houses: a 70-cm reflector supplied withelectron-optical, electrophotometric and polarimetric receiv-ing apparatus, intended for observations of variable stars andcomets and a 40-cm Zeiss astrograph for observations ofasteroids, comets and variable stars.

2. Sanglokh observatory, the construction of which wascompleted in 1980, is located in a south-east of Dushanbe ata distance of about 90 km. It was build at the top of San-glokh Mountain, the astroclimatic conditions of which havebeen widely recognized with a Ritchey-Chretien 1-m tele-scope.

3. Pamir high-mountain observatory, the so-called ’’Solarground-based astronomical complex ‘‘Pamir’’~situated at analtitude of 4350 m above sea levet and enjoing 250 clearnights per year!. It is located in the Murgab district~EastPamir! of the Gorno-Badakhshan Autonomous Region ofTajikistan. There a 70-cm telescope RT 700~with Cassegrainoptical system! and solar telescope are installed. Pamir ob-servatory, with its unique astroclimate, is an excellent long-term site for astronomical submillimeter, IR and optical ob-servations.

Nature of meteoroids and phenomena accompanyingflight of these bodies in the Earth atmosphere, atmospherictrajectories, meteor radiation and ionization, heliocentric or-bit of meteoroids, distribution of meteor matter in the near-Earth space and, at last, origin and evolution of meteoroidstreams and meteor showers - all of these problems are thearea of scientific interest of scientist of the Institute of astro-physics of the Tajik Academy of sciences.

Physics of comets is the other important direction of sci-entific research at the Institute of Astrophysics, Tajik Acad-emy of Sciences. These researches covers all sections ofcometary physics and an extensive observational and experi-mental material on comets is obtained there.

Observations of variable stars in Tajikistan have begunfrom the earliest days of the formation of the AstronomicalObservatory in Dushanbe. A unique photo-archives, a ‘‘SkySurvey,’’ consisting of almost 70.000 sky negatives is pre-served. Based on this archive several novaes and more than

8 ANNUAL REPORT

100 variables were discovered in T-associations, than Fea-tures of light curves, variability of period of variables ofdifferent types, and the oscillations in brightness of novaehave been studied.

Theoretical investigations of the dynamical phenomenonof the collective gravitational interactions of stars in galaxieshave been widely developed at the Institute. Investigation ofstar formation in galaxies have shown, that spiral waves ofdensity in galaxies counted not only in the features of motionof stars and interstellar gas, but also in peculiarity of latestar-formation processes.

13. THE INI UZBEKISTAN BRANCHThe Isaac Newton opened its Branch in August 2000. The

formal Agreement has been signed with Prof. Shukhrat Eh-gamberdiev, Director of the Ulugh Beg Astronomical Insti-tute of the Uzbekistan Academy of Sciences. The staff of thisBranch is also composed by scientists of the Astronomy De-partment of the National University of Uzbekistan.

The staff of the Isaac Newton Institute in Uzbekistan are:Abdikul Ashurov, Venera Batirshinova, Shukhrat Ehgamber-diev, Olga Ezhkova, Evelina Gaynulina, Konstantin Grankin,Alisher Hojaev, Mansur Ibrahimov, Sabit Ilyasov, ShukurKholikov, Oleg Ladenkov, Stanislav Melnikov, KaromatMirtadjieva, Muydinjon Muminov, Salakhutdin Nuritdinov,Israil Sattarov, Aleksander Serebryanskiy, Yusuf Tillaev andMamnun Zakirov.

Ulugh Beg Astronomical Institute of the UzbekistanAcademy of Sciences~UBAI ! is one of the oldest astronomi-cal institutions of the Former Soviet Union. It was foundedin 1873. The Central Asian area where Uzbekistan lies hasabsolute maximum of clear sky time for the whole Euro-asian continent. This makes the area particularly importantfor optical astronomical observations. As a result of the sitetesting expeditions organized by UBAI and Sternberg Astro-nomical Institute~Moscow! at the early 70s Maidanak moun-tain ~2700m! located 120 km south of the famous historicalcity of Samarkand was selected for an observatory. In August1996 a seeing monitoring at Mt. Maidanak was started withDifferential Image Motion Monitor of ESO, designed byM.Sarazin and used for Paranal and La Silla sites testing.After one year the results of the seeing measurementsshowed a very high quality seeing conditions at Mt. Maid-anak.

The currently four main research groups are in the topicsof: theoretical and observational research in galaxies, photo-metric observation of eclipsing binaries, observational stud-ies of young stars, and the study of solar activities.

Project 1: ‘‘Theoretical and observational research in gal-axies’’: Investigators: Salakhutdin Nuritdinov, MuydinjonMuminov, Karomat Mirtadjieva, Abdikul Ashurov, EvelinaGaynulina, and Venera Batirshinova. This group studies earlyevolution stages of spiral and other disk galaxies, gravita-tionally lensed quasars, as well as kinematics and photom-etry of open star clusters. Observations of gravitationallylensed quasars are carried out with 1.5 m telescope at theMaidanak Observatory using modern CCD-camera.

Project 2: ‘‘Photometric observation of eclipsing bina-ries’’: Investigators: Mamnun Zakirov, Alisher Hojaev and a

number of post-graduate students. They observe and researchyoung close binary systems in OB 96 associations and starforming regions, as well determinate physical parameters ofcomponents.

Project 3: ‘‘Observational studies of young stars’’: Inves-tigators: Konstantin Grankin, Olga Ezhkova, StanislavMelnikov, and Mansur Ibrahimov. The main aim of thisgroup is observation of young stars in our Galaxy. The groupcreated the most multicolor data base.

Project 4: ‘‘The study of solar activities’’: Investigators:Shukhat Ehgamberdiev, Israil Sattarov, Shukur Kholikov,Aleksander Serebryanskiy, Oleg Ladenkov, and Yusuf Tillae-v.This group carries out observations in helioseismology inthe frame of a number of International research programsand studies mechanisms of the solar activity. Besides interiorstructure of the Sun is also the aim of this group.

Several members of the Branch deliver lectures in theAstronomy Department of the National University ofUzbekistan.. The University was founded in 1918. The As-tronomy Department of the University trains Bachelors,Masters, Post-graduates and Post-doctoral students. The sci-entific activity of the Department members are in the fieldsof : Fomation and evolution of Elliptical galaxies, Physics ofGlobular Clusters, Dynamics of Galaxy clusters, Physics ofQuasars, and Close binary systems.

PUBLICATIONSNikoghossian, A. G., Mouradian, Z., 2000, ‘‘Profiles of the

Spectral Lines Formed in Stochastic Multicomponent At-mosphere.,’’ A&A, 360, 1086-1095.

Tamazian, V. S., Docobo, J. A.,Melikian, N. D., Baba, N.,Chavushyan, V. H., 2000, ‘‘Spectral, photometric andspeckle observations of visual binary WDs 0055012338.,’’ A&A, 363, 1019-1025.

Movsessian, T. H., Magakian, T. Yu., Amram, Ph., Bou-lesteix, J., Gach, J.-L., 2000, ‘‘Scanning Fabry-Perot ob-servations of HH7-HH11 outflow system.,’’ A&A, 364,293-300.

Gigoyan, K. S., Mauron, N., Azzopardi, M., Muratorio, G.,Abrahamyan, H. V., 2001, ‘‘A Search for Faint GalacticCarbon Stars from the First Byurakan Spectral Sky Sur-vey. I.,’’ A&A, 371, 560-570. M.P.,

Ivanov, V. D., Borissova, J., Vanzi, L., 2000, ‘‘Deep NearInfrared Photometry of New Galactic Globular Clusters.,’’A&A , 362, L1-L4.

Borissova, J., Georgiev, L., Rosado, M.,Kurtev, R. , Bulle-jos, A., Valdez-Gutierrez, M., 2000, ‘‘Infrared photometryof the Local Group dwarf irregular galaxy IC 10.,’’ A&A,363, 130-140.

Markova, N., Valchev, T., 2000, Spectral variability of earlytype stars: I. Peculiar supergiant HD199478.,’’ A&A, 363,995-1004.

Valdez-Gutierrez, M., Rosado, M., Georgiev, L.,Borissova,J., Kurtev, R. , 2001, ‘‘Kinematics of the ionized gas inthe Local Group Irregular Galaxy IC 1613.,’’ A&A, 366,35-53.

Tomov, N. A., Tomova, M. T., Ivanova, A., 2000, ‘‘Analysisof the U-band orbital variation of the symbiotic binaryAG Draconis during quiescence.,’’ A&A, 364, 557-562.

9ISAAC NEWTON INSTITUTE

Zhilyaev, B. E., Romanyuk, Ya. O., Verlyuk, I. A.,Svyatogorov, O. A., Khalack, V. R., Sergeev, A. V.,Konstantinova-Antova, R. K., Antov, A. P., Bachev, R.S., Alekseev, I. Yu., Chalenko, V. E., Shakhovskoy, D. N.,Contadikis, M. E., Avgoloupis, S. J., 2000, ‘‘Detection ofhigh-frequency optical oscillations on the flare star EVLacertae.,’’ A&A, 364, 641-645.

Markova, N., Scuderi, S., de Groot, M.,Markov, H. , Pana-gia, N., 2001, ‘‘SimultaneousH /alpha and photometricobservations of P Cygni.,’’ A&A, 366, 935-944.

Zamanov, R. K., Reig, P., Marti, J., Coe, M. J., Fabregat, J.,Tomov, N. A., Valchev, T., 2001, ‘‘Comparison of theH /alpha circumstellar disks inBe/X2ray binaries andBe stars.,’’ A&A, 367, 884-890.

Mihov, B., 2001, ‘‘The external shear in the gravitationallylensed system Q223710305: A two-plane lense model-ling.,’’ A&A, 370, 43-52.

Richer, M., Bullejos, A.,Borissova, J., McCall, M., Lee, H.,Kurtev, R. , Georgiev, L., Kingsburgh, R., Ross, R., Ro-sado, M., 2001, ‘‘IC 10: More evidence that it is a bluecompact dwarf.,’’ A&A, 370, 34-42.

Markova, N., Morrison, N., Kolka, I.,Markov, H. , 2001,‘‘P Cygni in a short S Doradus phase. Spectroscopic andphotometric evidences.,’’ A&A, 376, 898-905.

Kamp, I.,Iliev, I. K. , Paunzen, E., Pintado, O. I., Solano, E.,Barzova, I. S., 2001, ‘‘Light element non-LTE abun-dances of Lambda Bootis stars. II. Nitrogen and sulphur.,’’A&A, 375, 899-908.

Nenovski, P.,Dermendjiev, V. N., Detchev, M., Vial, J.-C.,Bocchialini, K., 2001, ‘‘On a mechanism of intensificationof field-aligned currents at the solar chromosphere-quiescent prominence,’’ A&A, 375, 1065-1074.

Kjurkchieva, D.P., Marchev, D.V., Ogloza, W., 2001,‘‘Spectroscopic and photometric observations of theshort-period RS CVn star RT And.,’’ A&A, 378, 102-112.

Kurtev, R. , Georgiev, L.,Borissova, J., Li, W. D., Filip-penko, A. V., Treffers, R. R., 2001, ‘‘The First KnownMira-type Variable Star in IC 1613.,’’ A&A, 378, 449-454.

Merkulova, N., 2000, ‘‘UBVRI Light curves of the SeyfertGalaxy NGC 746 in 1990-1998: Microvariability.,’’ AJ,119, 631-645.

Plachinda, S., Tarasova, T., 2000, ‘‘Magnetic Field Varia-tions With a Rotational Period on a Solarlike Star Xi BooA.,’’ AJ, 533, 1016-1022.

Pronik, V. , Sergeev, S., Sergeeva, E., 2000, ‘‘Arp 102B:variability patterns of the H-alpha line profile as evidencefor gas rotation in the broad-line region.,’’ A&A, 356,41-49.

Ryabchikova, T. A.,Savanov, I. S., et al., 2000, ‘‘Abun-dance analysis of roAp stars VI. 10 Aql and HD122970.,’’ A&A, 357, 981-987.

Clark, J. S., Miroshnichenko, A. , Larionov, V. M., Hyneset,R. I., Pooley, G. G., McCollough, M., Deiter, S.,Efimov,Yu. S., Haswell, C. A., Robinson, E. L., Roshe, P.,Shenavrin, V. I., Welsh, W. F., 2000, ‘‘Photometric obser-vations of the radio bright B@e#/X-ray binary CI CAM.,’’A&A, 356, 50-62.

Plachinda, S., 2000, ‘‘The Magnetic Field Variations with

Pulsational Phase in the Classical Cepheid Star Eta Aqui-lae.,’’ A&A, 360, 642-645.

Zurita, C., Casares, J., Shahbaz, T., Charles, P.A., Hynes,R.I., Shugarov, S., Goransky, V.,Pavlenko, E.P., Kuz-netsova, Y., 2000, ‘‘Optical studies of the X-ray transientXTE J2123-058. I. Photometry.,’’ MNRAS, 316, 137-142.

Nogami, D., Engels, D., Gansicke, B. T.,Pavlenko, E. P.,Novak, R. and Reinsch, K., 2000, ‘‘A newly discoveredSU UMa-type dwarf nova HS 144916415.,’’ A&A, 364,701-705.

Pursimo, T., Takalo, L.O., Sillanpaa, A., Kidger, M., Aller,H., Aller, M., Efimov, Yu., Maesano, M., Massaro, E.,Shakhovskoy, N., et al., 2000, ‘‘Intensive Monitoring ofOJ 287.,’’ A&A, 146, 141-155.

Pronik, V. , Sergeev, S., Sergeeva, E., 2001, ‘‘Complex vari-ability patterns in NGC 4151. III. Variability of the broademission-line profiles over 11 years.,’’ ApJ, 554, 245-260.

Santos-Lleo, M., Clavel, J., Schulz, B., Altieri, B., Barr, P.,Alloin, D., Berlind, P., Bertram, R., Crenshaw, D. M.,Edelson, R. A., Giveon, U., Horne, K., Huchra, J. P.,Kaspi, S., Kriss, G. A., Krolik, J. H., Malkan, M. A.,Malkov, Yu. F., Netzer, H., O’Brien, P. T., Peterson, B.M., Pogge, R.W.,Pronik, V. I ., Qian, B.-C., Reichert, G.A., Rodriguez-Pascual, P. M.,Sergeev, S. G., Tao, J.,Tokarz, S., Wagner, R. M., Wamsteker, W., Wilkes, B. J.,2001, ‘‘Monitoring of the optical and 2.5-11.7 mu m spec-trum and mid-IR imaging of the Seyfert 1 galaxy Mrk 279with ISO.,’’ A&A, 369, 57-64.

Dietrich, M., Bender, C. F., Bergmann, D. J., Bills, T. E.Bochkarev, N. G., Burenkov, A., Gaskell, C. M., Gutzmer,D. D., Grove, R., Hiller, M. E., Huchra, J. P., Klimek, E.S., Lund, C.,Merkulova, N., Pebley, S., Poulsen, M. A.,Pronik, V. I. , Sergeev, S. G., Sergeeva, E. A., Shapov-alova, A. I., Vlasyuk, V. V., Wilkes, B., 2001, ‘‘A Spec-troscopic and Photometric Study of Short-Timescale Vari-ability in NGC 5548.,’’ A&A, 371, 79-92.

Merkulova, N.I. , Metik, L.P. , Pronik, I.I. , 2001, ‘‘Charac-teristics of the continuum variability of the nucleus ofNGC 4151 in the optical in 1989 - 1996.,’’ A&A, 374,770-783.

Miroshnichenko, A. S., Fabregat, J., Bjorkman, K. S., Kn-auth, D. C., Morrison, N. D.,Tarasov, A. E., Reig, P.,Negueruela, I., and Blay, P., 2001, ‘‘Spectroscopic obser-vations of the delta Scorpii binary during its recent peri-astron passage.,’’ A&A, 377. 485-495.

Adelman, S.J., Saul, J.,Malanushenko, V., Ryabchikova,T.A., and Savanov, I., 2001, ‘‘On the rotation of thechemically peculiar magnetic star 56 Arietis.,’’A&A, 375,982-988.

Kondratyeva, L.N., 2001, ‘‘Th4-4: Be star which turnedinto planetary nebulae within 30 years.,’’ A&A, 376, 978-981.

Pavlenko, Ya.V., Duerbeek, H.W., 2001, ‘‘The spectrum ofV4334 Sgr ~Sakurai’s Object! in August 1998.,’’ A&A,367, 933-938.

Afanasiev V. L. andSil‘chenko O. K., 2000, ‘‘Young StellarNuclei in the Lenticular Galaxies. II. NGC 7280.,’’ AJ,119, 126.

Merkulova N., 2000, ‘‘UBVRI Light Curves of the Seyfert

10 ANNUAL REPORT

Galaxy NGC 7469 During 1990– 1998: Microvariabil-ity.’’ AJ, 119, 631.

Silchenko O.K., 2000, ‘‘Face-on galaxies NGC 524 andNGC 6340: chemically decoupled nuclei and inclined cir-cumnuclear disks.,’’ AJ, 120, 741.

Silchenko O.K. and Afanasiev V.L., 2000, ‘‘Decoupled nu-clei and nuclear polar rings in regular spiral galaxies.NGC 7217.,’’ A&A 364, 479-490.

Silchenko O.K., Vlasyuk V.V., Alvarado F., 2001, ‘‘Struc-ture and kinematics of NGC 615 and its nuclear star for-mation history.,’’ AJ, 121, 2499-2514.

Turner D.G., Billings G.W.,Berdnikov L.N. , 2001, ‘‘Thepulsation mode of the cluster Cepheid V1726 Cygni.,’’PASP, 113, 715-722.

Luck, R. E.,Kovtyukh, V. V. , Andrievsky, S. M., Korotin,S. A., Beletsky, Yu. V., 2000, ‘‘Comparative abundanceanalysis of the hot main sequence stars and their progenyin open cluster M25.,’’ A&A, 361, 189-200.

Andrievsky, S. M., Kovtyukh, V. V. , Korotin, S. A., Spite,M., Spite, F., 2001, ‘‘Magellanic Cloud abundances fromF supergiants.,’’ A&A, 367, 605-612.

Schonberner, D.,Andrievsky, S.M., Drilling, J.S., 2001,‘‘Blue stragglers in open clusters III: NGC 7789.,’’ A&A,366, 490-497.

Usenko I.A., Kovtyukh V.V. , Klochkova V.G., PanchukV.E., Yermakov S.V., 2001, ‘‘Spectroscopic investigationsof classical Cepheids and main-sequence stars in galacticopen clusters and associations. I. Association Cas OB2and small-amplitude Cepheid SU Cassiopeae.,’’ A&A,367, 831-839.

Mishenina, T.V., Kovtyukh, V.V. , 2001, ‘‘Analysis ofneutron-capture elements in metal-poor stars.,’’ A&A,370, 951-966.

Luck, R.E.,Kovtyukh, V.V. , Andrievsky, S.M., 2001, ‘‘SVVulpeculae: a first crossing Cepheid?,’’ A&A, 373, 589-596.

Usenko, I.A., Kovtyukh, V.V. , Klochkova, V.G., Panchuk,V.E., 2001, ‘‘Spectroscopic investigations of classicalCepheids and main-sequence stars in galactic open clus-ters and associations. II. Open cluster Platais 1~C21281488! and small-amplitude Cepheid V1726 Cygni.,’’A&A 376, 885-891.

Usenko, I.A., Kovtyukh, V.V. , Klochkova, V.G., 2001, ‘‘FNAquilae - unusual Cepheid with anomalous CNO-elements abund.,’’ A&A 377, 156-160.

Yudin R.V. , 2001, ‘‘Statistical analysis of intrinsic polariza-tion, near IR excess and projected rotational velocity dis-tributions of classical Be stars.,’’ A&A, 368, 912-931.

Ikhsanov N.R.,Larionov V.M. , Beskrovnaya N.G., 2001,‘‘On the accretion flow geometry in A0535126.,’’ A&A,372, 227-232.

Baryshev, Yu. V., Paturel, G., 2001, ‘‘Statistics of the detec-tion rates for tensor and scalar gravitational waves fromthe local galaxy universe.,’’ A&A, 371, 378-392.

Klimanov, S. A.,Reshetnikov, V. P., 2001, ‘‘Statistical studyof M51 type galaxies.,’’ A&A 378, 428-440.

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11ISAAC NEWTON INSTITUTE

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Gonzalo Alcaino

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