News from the Canary Islands…

Raquel Oreiro

ROQUE DE LOS MUCHACHOS LA PALMA

TEIDE OBSERVATORY

TEIDE OBSERVATORY.- TENERIFE ISLAND

First astrophysical studies (1964)

Altitude: 2400 m

Solar telescopes: • VTT (70 cm)• Themis (90 cm)• Gregor (1.5 m)• Solar laboratory

Night telescopes:

• Mons (50 cm)• IAC80 (80cm)• Carlos Sánchez (TCS, 1.55 m)• Big field OGS (1 m)• Stare (10 cm)

www.iac.es/ot/indice.html

ROQUE DE LOS MUCHACHOS OBSERVATORY.- LA PALMA ISLAND

Inaugurated in 1985

Altitude: 2400 m

Solar telescopes• Swedish Solar Telescope (1 m)• DOT (45 cm)

Night telescopes:• CMT (18 cm)• Isaac Newton Group of Tescopes

• William Herschel (4.2 m)• JKT (1 m)• Isaac Newton (ING, 2.5 m)

• NOT (2.5 m)• Galileo (TNG, 3.5 m)• Mercator (1.2 m)• Liverpool (2 m)

www.iac.es/gabinete/orm/indice.html

ROQUE DE LOS MUCHACHOS OBSERVATORY.- LA PALMA ISLAND

Gran Telescopio de Canarias (GTC, 10.4 m)

Expected first light in 2005

LAW OF SKY QUALITY

The canarian sky is protected by law

Outdoor lightening

Electromagnetic pollution

Atmospheric pollution

Air routes

INSTITUTO DE ASTROFÍSICA DE CANARIAS.- BASE

INSTITUTO DE ASTROFÍSICA DE CANARIAS.- BASE

Astrophysical research

Training of researches

Instrumentation

Structure of the Universe and Cosmology

Structure and Evolution of Galaxies

Interstellar Matter

The Sun

The Solar SystemHistory of Astronomy

Structure and Evolution of Stars

Canary Islands Winter School

Extrasolar Planets (2004)Payload and mission definition in Space Sciences (2003)Dark Matter and Dark Energy in the Universe (2002)Cosmochemistry (2001)Astrophysical Spectropolarimetry (2000)....

- Doctoral Studenships- Summer Research Grants .....Software department

Electronic departmentOptical departmentMechanical department

My news from the Canary Islands…

Trying a PhD

IAC Group on Solar and Stellar Seismology and Exoplanet Searches

Helioseismology

Asteroseismology

Extrasolar planets

P.I. Teodoro Roca CortésPere PalléAntonio JiménezClara RéguloFernando PérezJuan A. BelmonteSebastián JiménezHans Deeg Lexter Fox (just PhD finished)Francisco Espinosa (just PhD finished)Roi Alonso (PhD student)Héctor Vázquez (PhD student)Rosa M. Domínguez (PhD student)Raquel Oreiro (PhD student)

Participation in space mission SOHOHelioseismic observationsParticipation in helioseismic networks

Participation in space mission COROTParticipation in STEPHI networkStudy of Delta Scuti stars, hot subdwarfs

Participation in space mission COROTParticipation in STARE

ASTEROSEISMOLOGY.- HOT B SUBDWARFS (sdBs)

What are hot B subdwarfs?

blue colors, low luminosity

evolutionary state: after FGB – before WD cooling track

uncertainties: mass, formation channels, spectral unhomogenity

Pulsations in hot B subdwarfs

EC14026 stars = V361 Hya:

1997 theoretical – observational discovery

short period oscillators

Betsy stars = PG1716

2002

long period oscillators

ASTEROSEISMOLOGY.- HOT B SUBDWARFS (sdBs)

My PhD project .- Observational part

- IAC80 telescope (Tenerife)

80cm, V~15

Instruments:

•TTP (4ch photometer)

•TCP (CCD in windowed mode)

-NOT (La Palma) 2.5 m , V~17

Instrument:

•ALFOSC (windowed fast photometry mode)

ASTEROSEISMOLOGY.- HOT B SUBDWARFS (sdBs)

My PhD project.- Observational part

Precise characterization of known sdB pulsators

seismological study

Search for new sdB pulsators

one new sdB pulsator:

Balloon 090100001

brightest short period oscillatorhighest amplitude oscillation

My PhD project.- Observational part

ASTEROSEISMOLOGY.- HOT B SUBDWARFS (sdBs)

short and long period oscillationsmany frequencies

My PhD project.- Observational part

ASTEROSEISMOLOGY.- HOT B SUBDWARFS (sdBs)

Andrzej + Raquel data

Future work: 2005 Balloon campaign

ASTEROSEISMOLOGY.- HOT B SUBDWARFS (sdBs)