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102 papers · 1 filter
The QSO proximity effect at redshift <z>=2.6 with the FLO approach
V. D'Odorico, M. Bruscoli, F. Saitta +4
We revisit the proximity effect produced by QSOs at redshifts 2.1-3.3 applying the FLO approach (Saitta et al. 2008) to a sample of ~6300 Ly-alpha lines fitted in 21 high resolutio…
The Great Observatories Origins Deep Survey. VLT/VIMOS Spectroscopy in the GOODS-South Field
P. Popesso, M. Dickinson, M. Nonino +10
We present the first results of the VIsible Multiobject Spectrograph (VIMOS) ESO/GOODS program of spectroscopy of faint galaxies in the Chandra Deep Field South (CDF-S). The progra…
From Espresso to Codex
J. Liske, L. Pasquini, P. Bonifacio +24
CODEX and ESPRESSO are concepts for ultra-stable, high-resolution spectrographs at the E-ELT and VLT, respectively. Both instruments are well motivated by distinct sets of science…
Cosmic dynamics in the era of Extremely Large Telescopes
J. Liske, A. Grazian, E. Vanzella +24
The redshifts of all cosmologically distant sources are expected to experience a small, systematic drift as a function of time due to the evolution of the Universe's expansion rate…
Large Scale Structures at High Redshift in the GOODS Field
M. Castellano, S. Salimbeni, D. Trevese +8
We present a catalogue of overdensities in the GOODS-South field. We find various high density peaks that are embedded in structures diffused on the entire field, up to z ~ 2.5. Th…
The CODEX-ESPRESSO experiment: cosmic dynamics, fundamental physics, planets and much more..
S. Cristiani, G. Avila, P. Bonifacio +36
CODEX, a high resolution, super-stable spectrograph to be fed by the E-ELT, the most powerful telescope ever conceived, will for the first time provide the possibility of directly…
Tracing the gas at redshift 1.7-3.5 with the Lyman-alpha forest: the FLO approach
F. Saitta, V. D'Odorico, M. Bruscoli +3
[Abridged] We present FLO (From Lines to Over-densities), a new technique to reconstruct the hydrogen density field for the Lya forest lines observed in high resolution QSO spectra…
A Population of Faint Extended Line Emitters and the Host Galaxies of Optically Thick QSO Absorption Systems
Michael Rauch, Martin Haehnelt, Andrew Bunker +10
We have conducted a long slit search for low surface brightness Lyman-alpha emitters at redshift 2.67 < z < 3.75. A 92 hour long exposure with VLT/FORS2 down to a 1-sigma surface b…
The Great Observatories Origins Deep Survey. VLT/FORS2 Spectroscopy in the GOODS-South Field: Part III
E. Vanzella, S. Cristiani, M. Dickinson +15
Aims. We present the full data set of the spectroscopic campaign of the ESO/GOODS program in the GOODS-South field, obtained with the FORS2 spectrograph at the ESO/VLT. Method. Obj…
The red and blue galaxy populations in the GOODS field: evidence for an excess of red dwarfs
S. Salimbeni, E. Giallongo, N. Menci +8
We study the evolution of the galaxy population up to z\sim3 as a function of its colour properties. In particular, luminosity functions and luminosity densities have been derived…
A Photometrically Detected Forming Cluster of Galaxies at Redshift 1.6 in the GOODS Field
M. Castellano, S. Salimbeni, D. Trevese +9
We report the discovery of a localized overdensity at z~1.6 in the GOODS-South Field, presumably a poor cluster in the process of formation. The three-dimensional galaxy density ha…
Lyman Break Galaxies in the VLT/FORS2 spectroscopic campaign in the GOODS-S field
E. Vanzella, S. Cristiani, M. Dickinson +5
We present initial results from our ongoing campaign of spectroscopic identifications of Lyman--break galaxies (LBGs) at z ~ 4, 5 and 6 with FORS2 at the ESO VLT. The sample of LBG…
The effect of stellar feedback and quasar winds on the AGN population
Fabio Fontanot, Pierluigi Monaco, Stefano Cristiani +1
In order to constrain the physical processes that regulate and downsize the AGN population, the predictions of the MOdel for the Rise of GAlaxies aNd Active nuclei (MORGANA) are co…
The Galaxy Mass Function up to z=4 in the GOODS-MUSIC sample: into the epoch of formation of massive galaxies
A. Fontana, S. Salimbeni, A. Grazian +10
The goal of this work is to measure the evolution of the Galaxy Stellar Mass Function and of the resulting Stellar Mass Density up to redshift ~4, in order to study the assembly of…
On the radio properties of the highest redshift quasars
M. Cirasuolo, M. Magliocchetti, G. Gentile +3
We present deep radio observations of the most distant complete quasar sample drawn from the Sloan Digital Sky Survey. Combining our new data with those from literature we obtain a…
The Clustering Evolution of Distant Red Galaxies in the GOODS-MUSIC Sample
A. Grazian, A. Fontana, L. Moscardini +8
We use the GOODS-MUSIC sample, a catalog of ~3000 Ks-selected galaxies based on VLT and HST observation of the GOODS-South field with extended multi-wavelength coverage (from 0.3 t…
The GOODS-MUSIC sample: a multicolour catalog of near-IR selected galaxies in the GOODS-South field
A. Grazian, A. Fontana, C. De Santis +6
We present a high quality multiwavelength (from 0.3 to 8.0 micron) catalog of the large and deep area in the GOODS Southern Field covered by the deep near-IR observations obtained…
Cosmic evolution of the galaxy mass and luminosity functions by morphological type from multi-wavelength data in the CDF-South
A. Franceschini, G. Rodighiero, P. Cassata +7
We constrain the evolution of the galaxy mass and luminosity functions from the analysis of (public) multi-wavelength data in the Chandra Deep Field South (CDFS) area, obtained fro…
The Great Observatories Origins Deep Survey VLT/FORS2 Spectroscopy in the GOODS-South Field: Part II
E. Vanzella, S. Cristiani, M. Dickinson +16
We present the second campaign of the ESO/GOODS program of spectroscopy of faint galaxies in the GOODS-South field. Objects were selected as candidates for VLT/FORS2 observations p…
Probing 3-D matter distribution at z~2 with QSO multiple lines of sight
S. Cristiani, V. D'Odorico, F. Saitta +6
We investigate the 3-D matter distribution at z~2 with high resolution (R ~ 40000) spectra of QSO pairs and groups obtained with the UVES spectrograph at ESO VLT. Our sample is uni…
The K20 survey. VII. The spectroscopic catalogue: spectral properties and evolution of the galaxy population
M. Mignoli, A. Cimatti, G. Zamorani +11
The K20 survey is a near infrared-selected, deep (Ks < 20) redshift survey targeting galaxies in two independent regions of the sky, the CDFS and the q0055-2659 field. The total Ks…
Infrared Number Counts of AGN in the GOODS Fields
E. Treister, C. Megan Urry, the GOODS AGN Team
Using the known numbers and evolution of unobscured AGN, and assuming that there is a large number of corresponding obscured AGN -- as expected if AGN unification is correct -- we…
The B-Band Luminosity Function of Red and Blue Galaxies up to z=3.5
E. Giallongo, S. Salimbeni, N. Menci +5
We have explored the redshift evolution of the luminosity function of red and blue galaxies up to . This was possible joining a deep I band composite galaxy sample, which in…
Obscured AGN and the X-ray, Optical and Far-Infrared Number Counts of AGN in the GOODS Fields
E. Treister, C. M. Urry, E. Chatzichristou +12
The deep X-ray, optical, and far-infrared fields that constitute GOODS are sensitive to obscured AGN (N_H>10^{22} cm^{-2}) at the quasar epoch (z~2-3), as well as to unobscured AGN…