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Filippo Mannucci
Scientific cases of the Italian community
for LGS @ LBT
Projects and requirements
GalacticStellar jets and circumstellat disks
Supernovae & GRBSearch for SNe associated to GRB*Search for high-redshift and obscured SNe
GalaxiesBlack holes in galactic nuclei*High-redshift galaxies*Massive, optically faint galaxies Metallicity, dynamics and stellar gradientsMerger rates
*: see also Firenze Oct 2006: http://lbtwww.arcetri.astro.it/adoptws/agenda.html
WFPC32.2’x2.2’H=26.5
Comparison AO+LSG vs. HST
NIC30.9’x0.9’H=25.8
LBT GLAO4’x4’
H,K=24
1x1
NACOLBT DL
0.9’x0.9’H,K=24
Seeing limited
0.8” FWHM
Stellar disks and JetsHerbig Ae/Be stars
HL TauXZ Tau
Mundt et al. 1990.
SII 6717 Å 3.5m Calar Alto
Ray et al. 1996
HH 30 jet
Disks and Jets:
extraction of excess angular moment, efficiency of formation
exact nature of acceleration of the jet is unclear
jet rotation and precession?
peculiar velocity fields, bow shocks
Stellar disks and Jets
0.5”
Magnetic flow surfaces
Alfve'n Surface
1”
High spatial (<0.1”) and spectral (R>5/10000) resol.
near-IR (FeII 1.2, 1.6, H2 2.1 mic)
or optical R (OI λ 6300, Hα, SIIλ6716)
Dougados et al 2000
Habart, Natta & Testi (2006) ESO/NACO
Stellar disks and Jets
0.5”
1”
best with IFU, possible with multislit
Ha
N II
SII
OI
Increasing radial velocity
1”
1”
HST/STIS Bacciotti et al. 2000
LGS: imaging and spec. – DL - sky coverage most jets have no bright star
SNe at z~1SNe:1. metal production2. feedback for galaxy formation3. thermal history of ICM and IGM
High redshift (z>0.5)Ia: cosmologyCC: tracer of SFH
Mannucci et al. 2007
SNe associated to GRB
Della Valle et al. (2006b)Della Valle et al. (2006a)
Long GRB: death of a massive star
diversity of SNe
z>1
• Imaging and Spectroscopy
• LGS: DL, sky coverage
Black Hole in Galactic Nuclei
Measuring the BH mass:• Star dynamics• Gas dynamics• (size of BLR, line width,
reverbaration mapping)
Only ~40 measures
Sphere of influence: BH gravitational field = Galactic
Radius = 0.1” for M = 108M⊙ σ
= 200 Km/sec D =
20 MpcMarconi & Hunt (2003)
• correlation BH mass – bulge mass
•Coformation and coevolution galaxy-central BH
• Feedback
Black Hole in Galactic Nuclei
Davies et al. 2006
NGC3227 D=17 Mpc log(MBH/M⊙) = 6.8-7.3
Black Hole in Galactic Nuclei
Pastorini et al (2007) SINFONI, H2 (2.12 mic)
NGC4593 (D=38 Mpc) log(MBH/M⊙)=7.5
Best with IFU, slits work fine
Spectral R>3000
LGS: DL, sky coverage
Optically faint galaxies z~7 HST/ACS VLT/ISAAC SPITZER/IRAC
Mannucci et al (2007)
Rodighiero et al (2007)
UV bright (LBG)
UV faint (EROS, DRG…)
Optically faint galaxies
GLAOK’ band1 hour0.3” FWHM
intermediate- and high-z galaxies
1. Tests of ΛCDM:1. number of large (M>1011M⊙) halos at z=32. number of centrifugally supported large disks at
z>23. increase in galaxy size from z=3
2. Galaxies at z≥2
1. fundamental plane of E
2. metallicity and stellar gradients
3. disk dynamical massMorphology: GLAO/images
• large field• stable PSF• “known” PSF• sky coverage
Redshifts, metallicity, dynamics? GLAO/MOS
• Dark halo, dynamical to stellar mass, metallicity
1 arcsecz=3.23
Mannucci et al. (2007)
Dynamics of high-z galaxies
AMAZE, ESO large project, SINFONI (PI: Maiolino)
Mass-Metallicity relation at high z
downsizing: large galaxies form first?
star formation and mass assebly
AMAZE, ESO large project, SINFONI (PI: Maiolino)
Mass-Metallicity relation at high z
IFU, DL, sky coverage
evolution of the merging rate among galaxies
simpler non-baryonic physicsStrong predictions of CDM
Near-IR to avoid star-forming blobsHigh spatial resolution , large fields
GLAO, imaging
Merging history
z=3.1
Projects and requirements
ProjectAdoptGL DL
Observ.ima spec
GalacticLow-mass IMF X XBrown dwarfs X X XStellar jets and circumstellar disks X X
Supernovae & GRBSN Progenitors X XSearch for SNe associated to GRB X X XSearch for high-redshift SNe X X
GalaxiesBlack holes in galactic nuclei X XMorph. of massive, optically-faint galaxies X X X
High-redshift galaxies XMetallicity, dynamics and stellar gradients X X
Merger rates X X
