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Laser Guide Star Adaptive Optics without Tip-tilt
R. Davies, S. Rabien, C. Lidman +8
Adaptive optics (AO) systems allow a telescope to reach its diffraction limit at near infrared wavelengths. But to achieve this, a bright natural guide star (NGS) is needed for the…
The evolution of the mass-metallicity relation at z~3
R. Maiolino, T. Nagao, A. Grazian +14
We present preliminary results of an ESO-VLT large programme (AMAZE) aimed at determining the evolution of the mass-metallicity relation at z~3 by means of deep near-IR spectroscop…
A galaxy overdensity at z=0.401 associated with an X-ray emitting structure of Warm-Hot Intergalactic Medium
F. Mannucci, G. Bonnoli, L. Zappacosta +2
We present the results of spectroscopic observations of galaxies associated with the diffuse X-ray emitting structure discovered by Zappacosta et al. (2002). After measuring the re…
The Kormendy relation of massive elliptical galaxies at z~1.5. Evidence for size evolution ?
M. Longhetti, P. Saracco, P. Severgnini +6
We present the morphological analysis based on HST-NIC2 (0.075 arcsec/pixel) images in the F160W filter of a sample of 9 massive field (> 10^{11} M_\odot) galaxies spectroscopicall…
Galaxy morphology and evolution from SWAN Adaptive Optics imaging
G. Cresci, R. I. Davies, A. J. Baker +4
We present the results from adaptive optics (AO) assisted imaging in the Ks band of an area of 15 arcmin^2 for SWAN (Survey of a Wide Area with NACO). We derive the high resolution…
Evidence for strong evolution of the cosmic star formation density at high redshift
F. Mannucci, H. Buttery, R. Maiolino +2
Deep HST/ACS and VLT/ISAAC data of the GOODS-South field were used to look for high-redshift galaxies in the rest-frame UV wavelength range and to study the evolution of the cosmic…