Filippo Mannucci Scientific cases of the Italian community for LGS @ LBT.
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Transcript of Filippo Mannucci Scientific cases of the Italian community for LGS @ LBT.
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Filippo Mannucci
Scientific cases of the Italian community
for LGS @ LBT
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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
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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
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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
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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
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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
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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
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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
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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
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Black Hole in Galactic Nuclei
Davies et al. 2006
NGC3227 D=17 Mpc log(MBH/M⊙) = 6.8-7.3
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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
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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…)
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Optically faint galaxies
GLAOK’ band1 hour0.3” FWHM
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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
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• Dark halo, dynamical to stellar mass, metallicity
1 arcsecz=3.23
Mannucci et al. (2007)
Dynamics of high-z galaxies
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AMAZE, ESO large project, SINFONI (PI: Maiolino)
Mass-Metallicity relation at high z
downsizing: large galaxies form first?
star formation and mass assebly
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AMAZE, ESO large project, SINFONI (PI: Maiolino)
Mass-Metallicity relation at high z
IFU, DL, sky coverage
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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
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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