GRB 090313: X-shooter's first shot at a GRB (2009)
Postigo, A. De Ugarte, D'Elia, V., Goldoni, P., Thöne, C. C., Piranomonte, S., Vergani, S. D., ...
Context. X-shooter is the first second-generation instrument of ESO's Very Large Telescope (VLT), a spectrograph designed with gamma-ray burst (GRB) afterglow spectroscopy as one of its main...
Vernet, J., Kerber, F., Saitta, F., Mainieri, V., D'Odorico, S., Lidman, C., ...
We present a project aimed at establishing a set of 12 spectro-photometric standards over a wide wavelength range from 320 to 2500 nm. Currently no such set of standard stars covering the near-IR is...
VIMOS-VLT Integral Field Kinematics of the Giant Low Surface Brightness Galaxy ESO 323-G064 (2008)
Coccato, L., Swaters, R. A., Rubin, V. C., D'Odorico, S., McGaugh, S. S.
Aims:We have studied the bulge and the disk kinematics of the giant low surface brightness galaxy ESO 323-G064 in order to investigate its dynamical properties and the radial mass profile of the dark...
MAD@VLT: Deep into the Madding Crowd of Omega Centauri (2008)
Bono, G., Calamida, A., Corsi, C. E., Stetson, P. B., Marchetti, E., Amico, P., ...
We present deep and accurate Near-Infrared (NIR) photometry of the Galactic Globular Cluster (GC) Omega Cen. Data were collected using the Multi-Conjugate Adaptive Optics Demonstrator (MAD) on VLT...
X-shooter: a medium-resolution, wide-band spectrograph for the VLT (2008)
Kaper, L., D'Odorico, S., Hammer, F., Pallavicini, R., Rasmussen, P. Kjaergaard
X-shooter is the first second-generation instrument for the ESO Very Large Telescope and will be installed in 2008. It is intended to become the most powerful optical & near-infrared...
Liske, J., Pasquini, L., Bonifacio, P., Bouchy, F., Carswell, R. F., Cristiani, S., ...
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 drivers. However,...
Cosmic dynamics in the era of Extremely Large Telescopes (2008)
Liske, J., Grazian, A., Vanzella, E., Dessauges, M., Viel, M., Pasquini, L., ...
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. A measurement of...
Laser Frequency Combs for Astronomical Observations (2008)
Steinmetz, Tilo, Wilken, Tobias, Araujo-Hauck, C., Holzwarth, Ronald, Hänsch, Theodor W., Pasquini, L., ...
VIMOS-VLT integral field kinematics of the giant low surface brightness galaxy ESO 323-G064 (2008)
Coccato, L., Swaters, R. A., Rubin, V. C., D'Odorico, S., McGaugh, S. S.
VLT/VIMOS Integral-field kinematics of the giant low surface brightness galaxy ESO 323-G064 (2008)
Coccato, L., Swaters, R., Rubin, V. C., D'Odorico, S., McGaugh, S.
The CODEX-ESPRESSO experiment: cosmic dynamics, fundamental physics, planets and much more.. (2007)
Cristiani, S., Avila, G., Bonifacio, P., Bouchy, F., Carswell, B., D'Odorico, S., ...
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 measuring the...
Molaro, P., Levshakov, S. A., Monai, S., Centurion, M., Bonifacio, P., D'Odorico, S., ...
High resolution observations of the asteroids Iris and Juno have been performed by means of the UVES spectrograph at the ESO VLT to obtain the effective accurac y of the spectrograph's radial...
On the white dwarf cooling sequence of the globular cluster Omega Centauri (2007)
Calamida, A., Corsi, C. E., Bono, G., Stetson, P. B., Moroni, P. G. Prada, Degl'Innocenti, S., ...
We present deep and precise photometry (F435, F625W, F658N) of Omega Cen collected with the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope (HST). We have identified ~ 6,500...
VLT/VIMOS Integral field kinematics of the Giant Low Surface Brightness galaxy ESO 323-G064 (2007)
Coccato, L., Swaters, R., Rubin, V. C., D'Odorico, S., McGaugh, S.
We studied the bulge and the disk kinematic of the giant Low Surface Brightness (LSB) galaxy ESO 323-G064 in order to investigate its dynamics and its Dark Matter (DM) content. We observed the galaxy...
A new comprehensive set of elemental abundances in DLAs III. Star formation histories (2007)
Dessauges-Zavadsky, M., Calura, F., Prochaska, J. X., D'Odorico, S., Matteucci, F.
We obtained comprehensive sets of elemental abundances for eleven damped Ly-alpha systems (DLAs) at z_DLA=1.7-2.5. In Paper I of this series, we showed for three DLA galaxies that we can derive their...
Murphy, M. T., Udem, Th., Holzwarth, R., Sizmann, A., Pasquini, L., Araujo-Hauck, C., ...
We describe a possible new technique for precise wavelength calibration of high-resolution astronomical spectrographs using femtosecond-pulsed mode-locked lasers controlled by stable oscillators such...
Levshakov, S. A., Molaro, P., Lopez, S., D'Odorico, S., Centurion, M., Bonifacio, P., ...
We probe the evolution of the fine-structure constant, alpha, with cosmic time. Accurate positions of the FeII lines 1608, 2382,and 2600 A are measured in the z = 1.84 absorption system from a...
Lopez, S., Ellison, S., D'Odorico, S.
We present results of the first survey of high-redshift ( ~ 2.3) OVI absorption systems along parallel lines of sight toward two lensed QSOs. After a careful and well-defined search, we find ten...
Levshakov, S. A., Molaro, P., Lopez, S., D'Odorico, S., Centurion, M., Bonifacio, P., ...
Publicación ISI
Levshakov, S. A., Molaro, P., López, S., D'Odorico, S., Centurión, M., Bonifacio, P., ...
Publicación ISI
High-z massive galaxies in the HDF-South (2006)
Saracco, P., Longhetti, M., Giallongo, E., Arnouts, S., Cristiani, S., D'Odorico, S., ...
[abr] We report the analysis of three galaxies selected in the Hubble Deep Field South at Ks3. We have used population synthesis models to constrain their redshifts and their stellar masses. One...
D'Odorico, S., Dekker, H., Mazzoleni, R., Vernet, J., Guinouard, I., Groot, P., ...
X-shooter is a single target spectrograph for the Cassegrain focus of one of the VLT UTs where it will start to operate in 2008. The instrument covers in a single exposure the spectral range from the...
Most precise single redshift bound to the variability of the fine-structure constant (2005)
Levshakov, S. A., Centurion, M., Molaro, P., D'Odorico, S., Reimers, D., Quast, R., ...
Verification of theoretical predictions of an oscillating behavior of the fine-structure constant, alpha, with cosmic time requires high precision measurements at individual redshifts, while in...
Most precise single redshift bound to Delta alpha/alpha (2005)
Levshakov, S. A., Centurion, M., Molaro, P., D'Odorico, S., Reimers, D., Quast, R., ...
Verification of theoretical predictions of an oscillating behavior of the fine-structure constant alpha with cosmic time requires high precision Delta alpha/alpha measurements at individual...
Dessauges-Zavadsky, M., Prochaska, J. X., D'Odorico, S., Calura, F., Matteucci, F.
We present new elemental abundance studies of seven damped Lyman-alpha systems (DLAs). Together with the four DLAs analyzed in Dessauges-Zavadsky et al. (2004), we have a sample of eleven DLA...
VLT/UVES shows no cosmological variability of alpha (2005)
Molaro, P., Centurion, M., D'Odorico, S., Levshakov, S.
The cosmological variability of alpha is probed from individual observations of pairs of FeII lines. This procedure allows a better control of the systematics and avoids the influence of the spectral...
Mignoli, M., Cimatti, A., Zamorani, G., Pozzetti, L., Daddi, E., Renzini, A., ...
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-selected sample...
VLT/UVES constraints on the cosmological variability of the fine-structure constant (2004)
Levshakov, S. A., Centurion, M., Molaro, P., D'Odorico, S.
We propose a new methodology for probing the cosmological variability of alpha from pairs of FeII lines (SIDAM, single ion differential alpha measurement) observed in individual exposures from a high...
The K20 survey. VI. The Distribution of the Stellar Masses in Galaxies up to z~2 (2004)
Fontana, A., Pozzetti, L., Donnarumma, I., Renzini, A., Cimatti, A., Zamorani, G., ...
We present a detailed analysis of the stellar mass content of galaxies up to z=2.5 in the K20 galaxy sample, that has a 92% spectroscopic completeness and a complete $UBVRIzJK_s$ multicolor coverage....
X-shooter: UV-to-IR intermediate-resolution high-efficiency spectrograph for the ESO VLT (2004)
D'Odorico, S., Andersen, M.I., Conconi, P., Caprio, V. De, Delabre, B., Marcantonio, P. Di, ...
X-shooter is a single target spectrograph for the Cassegrain focus of one of the VLT UTs. It covers in a single exposure the spectral range from the UV to the H band with a possible extension into...
High-z massive galaxies in the HDF-South (2004)
Saracco, P., Longhetti, M., Giallongo, E., Arnouts, S., Cristiani, S., D'Odorico, S., ...
[abr] We report the analysis of three galaxies selected in the Hubble Deep Field South at Ks3. We have used population synthesis models to constrain their redshifts and their stellar masses. One...
High-z massive galaxies in the HDF-South (2004)
Saracco, P., Longhetti, M., Giallongo, E., Arnouts, S., Cristiani, S., D'Odorico, S., ...
[abr] We report the analysis of three galaxies selected in the Hubble Deep Field South at Ks3. We have used population synthesis models to constrain their redshifts and their stellar masses. One...
High-z massive galaxies in the HDF-South (2003)
Saracco, P., Longhetti, M., Giallongo, E., Arnouts, S., Cristiani, S., D'Odorico, S., ...
[abr] We report the analysis of three galaxies selected in the Hubble Deep Field South at Ks3. We have used population synthesis models to constrain their redshifts and their stellar masses. One...
The broad OVI absorber at z = 3.02 toward CTQ 325 (2003)
Levshakov, S. A., D'Odorico, S., Agafonova, I. I., Dessauge-Zavadsky, M.
We report on the multiphase absorption-line system detected at a redshift z = 3.021 in the spectrum of the quasi-stellar object CTQ 325 (z_em = 3.212). The system is displaced by ~14,000 km/s to the...
Clues to the origin of metals in the Ly-alpha forest (2003)
Lopez, S., D'odorico, S., Ellison, S. L.
We analyze the z=2 Ly-alpha and CIV forest along two adjacent lines-of-sight at high S/N and spectral resolution to assess the question of the origin of metals in the intergalactic medium. We find...
The assembly of massive galaxies from NIR observations of the Hubble Deep Field South (2003)
Fontana, A., Donnarumma, I., Vanzella, E., Giallongo, E., Menci, N., Nonino, M., ...
We use a deep K(AB)2 form stars with an average specific rate at least ~4 x10^{-10} yr$^{-1}$, 3 times higher than the z2.
Dessauges-Zavadsky, M., Peroux, C., D'Odorico, S., McMahon, R. G.
In this first paper of a series, we report on the use of quasar spectra obtained with the UVES high resolution spectrograph and available through the ESO VLT archive to build the first sample of...
The evolution of the galaxy luminosity function in the rest frame blue band up to z=3.5 (2003)
Poli, F., Giallongo, E., Fontana, A., Menci, N., Zamorani, G., Nonino, M., ...
We present an estimate of the cosmological evolution of the field galaxy luminosity function (LF) in the rest frame 4400 Angstrom B -band up to redshift z=3.5. To this purpose, we use a composite...
Chemical Evolution of Damped Lyman Alpha Systems (2003)
Calura, F., Matteucci, F., Dessauges-Zavadsky, M., D'Odorico, S., Prochaska, J. X., Vladilo, G.
By means of detailed chemical evolution models for galaxies of different morphological types (i.e. spirals, irregular/starburst galaxies and ellipticals) we study the nature of Damped Lyman-Alpha...
The K20 survey. V The evolution of the near-IR Luminosity Function (2003)
Pozzetti, L., Cimatti, A., Zamorani, G., Daddi, E., Menci, N., Fontana, A., ...
We present the galaxy rest-frame near-IR Luminosity Function (LF) and its cosmic evolution to z=1.5 based on a spectroscopic survey of a magnitude limited sample of galaxies with Ks
An ESO/VLT survey of NIR (Z (2002)
Fontana, A., Poli, F., Menci, N., Nonino, M., Giallongo, E., Cristiani, S., ...
We present the results of a VLT and HST imaging survey aimed at the identification of 4.5
Levshakov, S. A., Agafonova, I. I., D'Odorico, S., Wolfe, A. M., Dessauges-Zavadsky, M.
Detailed Monte Carlo Inversion analysis of the spectral lines from three Lyman limit systems (LLS) [N(HI) > 10^{17} cm^-2] and nine lower N(HI) systems [2 10^{14} < N(HI) < 2 10^{16} cm^-2] observed...
The K20 survey. IV. The redshift distribution of Ks (2002)
Cimatti, A., Pozzetti, L., Mignoli, M., Daddi, E., Menci, N., Poli, F., ...
We present the redshift distribution of a complete sample of 480 galaxies with Ks1 and z>1.5 respectively. A ``blind'' comparison is made with the predictions of a set of the most recent LambdaCDM...
Dessauges-Zavadsky, M., Prochaska, J. X., D'Odorico, S.
We have combined new high resolution UVES-VLT observations of a sample of four damped Ly-alpha systems (DLAs) at redshifts between z_abs = 1.7-2.5 with the existing HIRES-Keck spectra to undertake a...
The K20 survey. III. Photometric and spectroscopic properties of the sample (2002)
Cimatti, A., Mignoli, M., Daddi, E., Pozzetti, L., Fontana, A., Saracco, P., ...
The K20 survey is an ESO VLT optical and near-infrared spectroscopic survey aimed at obtaining spectral information and redshifts of a complete sample of about 550 objects to K_s\leq20.0 over two...
A Low Upper Limit to the Lyman Continuum Emission of two galaxies at z 3 (2002)
Giallongo, E., Cristiani, S., D'Odorico, S., Fontana, A.
Long exposure, long-slit spectra have been obtained in the UV/optical bands for two galaxies at z=2.96 and z=3.32 to investigate the fraction of ionizing UV photons escaping from high redshifts...
The K20 survey. II. The Different Spatial Clustering of z~1 Old and Dusty Star-Forming EROs (2002)
Daddi, E., Cimatti, A., Broadhurst, T., Renzini, A., Zamorani, G., Mignoli, M., ...
We compare the 3D clustering of old passively-evolving and dusty star-forming z~1 EROs from the K20 survey. With detailed simulations of clustering, the comoving correlation length of dusty...
H2, D/H and the CMBR Temperature at z = 3.025 Toward QSO 0347-3819 (2002)
Levshakov, S. A., Molaro, P., Dessauges-Zavadsky, M., D'Odorico, S.
A new molecular hydrogen cloud has been identified at z = 3.025 in the absorption-line spectrum of the quasar 0347-3819 observed with the UVES spectrograph at the VLT/Kueyen telescope. At the same...
HARPS: ESO's coming planet searcher. Chasing exoplanets with the La Silla 3.6-m telescope (2002)
Pepe, F., Mayor, M., Rupprecht, G., Avila, G., Ballester, P., ...
Not Available
Exploring the intergalactic medium with VLT/UVES (2001)
Cristiani, S., Bianchi, S., D'Odorico, S.
The remarkable efficiency of the UVES spectrograph at the VLT has made it possible to push high-resolution, high-S/N ground observations of the Ly-a forest down to z~1.5, gaining new insight into the...
The cosmic microwave background radiation temperature at z = 3.025 toward QSO 0347--3819 (2001)
Molaro, P., Levshakov, S. A., Dessauges-Zavadsky, M., D'Odorico, S.
From the analysis of the CII fine-structure population ratio in the damped Ly_alpha system at z = 3.025 toward the quasar Q0347--3819 we derive an upper bound of 14.6 (+/- 0.2) K on the cosmic...
The K20 survey. I. Disentangling old and dusty star-forming galaxies in the ERO population (2001)
Cimatti, A., Daddi, E., Mignoli, M., Pozzetti, L., Renzini, A., Zamorani, G., ...
We present the results of VLT optical spectroscopy of a complete sample of 78 EROs with R-Ks\geq5 over a field of 52 arcmin^2. About 70% of the 45 EROs with Ks\leq19.2 have been spectroscopically...
Exploring the Lyman Forest with VLT/UVES (2001)
Cristiani, S., Bianchi, S., D'Odorico, S.
A sample of 8 QSOs with 1.7 < z_em < 3.7 has been observed with VLT/UVES at a typical resolution 45000 and S/N~40-50. Thanks to the two-arm design of the spectrograph, a remarkable efficiency has...
Multicolor observations of the Hubble Deep Field South (2001)
Vanzella, E., Cristiani, S., Saracco, P., Arnouts, S., Bianchi, S., D'Odorico, S., ...
We present a deep multicolor (UBVIJsHKs) catalog of galaxies in the HDF-S, based on observations obtained with the HST WFPC2 in 1998 and VLT-ISAAC in 1999. The photometric procedures were tuned to...
A new constraint on cosmological variability of the proton-to-electron mass ratio (2001)
Levshakov, S. A., Dessauges-Zavadsky, M., D'Odorico, S., Molaro, P.
Exotic cosmologies predict variability of the fundamental physical constants over the cosmic time. Using the VLT/UVES high resolution spectra of the quasar Q0347-3819 and unblended electronic -...
Levshakov, S. A., Dessauges-Zavadsky, M., D'Odorico, S., Molaro, P.
We have detected in high resolution spectra of the quasar Q0347--3819 obtained with the UVES spectrograph at the VLT/Kueyen telescope over 80 absorption features in the Lyman and Werner H2 bands at...
Saracco, P., Giallongo, E., Cristiani, S., D'Odorico, S., Fontana, A., Iovino, A., ...
We present near-IR (J and Ks) number counts and colors of galaxies detected in deep VLT-ISAAC images centered on the Chandra Deep Field and Hubble Deep Field-South for a total area of 13.6...
Dessauges-Zavadsky, M., D'Odorico, S., McMahon, R. G., Molaro, P., Ledoux, C., Peroux, C., ...
We present the first high-resolution (6.2 to 7.7 km/s FWHM) spectra of the APM BR J0307-4945 quasar at z_em = 4.73 obtained with UVES on the 8.2m VLT Kueyen telescope. We focus our analysis on a...
VLT/Uves Observations of the Dla at Z=3.39 towards QSO 0000-2621 (2001)
Molaro, P., Bonifacio, P., Centurion, M., Vladilo, G., D'Odorico, S., Levshakov, S. A.
UVES observations at ESO/VLT of the DLA at z=3.39 towards QSO 0000-2621 provided refined abundances for Fe, Si, N, Ni, and new abundances for O, Ar, P, Zn, Cr, H2. These determinations confirm that...
Molecular hydrogen abundance in the dust-free damped Ly-alpha galaxy at z = 3.4 (2000)
Levshakov, S. A., Molaro, P., Centurion, M., D'Odorico, S., Bonifacio, P., Vladilo, G.
New results from the search for H2 absorption in the damped Ly-alpha galaxy at redshift z = 3.4 toward QSO 0000-2620 (z_em = 4.1) are reported. The high-resolution (lambda/Delta lambda = 48,000)...
Fontana, A., D'Odorico, S., Poli, F., Giallongo, E., Arnouts, S., Cristiani, S., ...
We present and compare in this paper new photometric redshift catalogs of the galaxies in three public fields: the NTT Deep Field, the HDF-N and the HDF-S. Photometric redshifts have been obtained...
Levshakov, S. A., Molaro, P., Centurion, M., D'Odorico, S., Bonifacio, P., Vladilo, G.
We have discovered molecular hydrogen in a fourth quasar damped Ly-alpha system (hereafter DLA). The UVES spectrograph on the 8.2m ESO Kueyen telescope has allowed the detection of H2 in gas with low...
The lithium isotope ratio in the metal-poor halo star G271-162 from VLT/UVES observations (2000)
Nissen, P. E., Asplund, M., Hill, V., D'Odorico, S.
A high resolution (R = 110.000), very high S/N (>600) spectrum of the metal-poor turnoff star G271-162 has been obtained in connection with the commissioning of UVES at VLT/Kueyen. Using both 1D...
Comparing the Evolution of the Galaxy Disk Sizes with CDM Models: The Hubble Deep Field (2000)
Giallongo, E., Menci, N., Poli, F., D'Odorico, S., Fontana, A.
The intrinsic sizes of the field galaxies with I-19) galaxies is skewed with respect to the CDM predictions and an excess of small-size disks (R_d
The lithium isotope ratio in the metal-poor halo star G271-162 from VLT/UVES observations (2000)
Nissen, P.E., Asplund, Martin, Hill, V., D'Odorico, S.
A high resolution (lambda /Delta lambda =~ 110 000), very high S/N (>~ 600) spectrum of the metal-poor turnoff star G 271-162 has been obtained in connection with the commissioning of UVES at...
The lithium isotope ratio in the metal-poor halo star G271-162 from VLT/UVES observations (2000)
Nissen, P.E., Asplund, Martin, Hill, V., D'Odorico, S.
A high resolution (lambda /Delta lambda =~ 110 000), very high S/N (>~ 600) spectrum of the metal-poor turnoff star G 271-162 has been obtained in connection with the commissioning of UVES at...
The lithium isotope ratio in the metal-poor halo star G271-162 from VLT/UVES observations (2000)
Nissen, P.E., Asplund, Martin, Hill, V., D'Odorico, S.
A high resolution (lambda /Delta lambda =~ 110 000), very high S/N (>~ 600) spectrum of the metal-poor turnoff star G 271-162 has been obtained in connection with the commissioning of UVES at...
The lithium isotope ratio in the metal-poor halo star G271-162 from VLT/UVES observations (2000)
Nissen, P.E., Asplund, Martin, Hill, V., D'Odorico, S.
A high resolution (lambda /Delta lambda =~ 110 000), very high S/N (>~ 600) spectrum of the metal-poor turnoff star G 271-162 has been obtained in connection with the commissioning of UVES at...
The lithium isotope ratio in the metal-poor halo star G271-162 from VLT/UVES observations (2000)
Nissen, P.E., Asplund, Martin, Hill, V., D'Odorico, S.
A high resolution (lambda /Delta lambda =~ 110 000), very high S/N (>~ 600) spectrum of the metal-poor turnoff star G 271-162 has been obtained in connection with the commissioning of UVES at...
The Evolution of the Galaxy Sizes in the NTT Deep Field: a Comparison with CDM Models (1999)
Poli, F., Giallongo, E., Menci, N., D'Odorico, S., Fontana, A.
The sizes of the field galaxies with I
Fontana, A., Menci, N., D'Odorico, S., Giallongo, E., Poli, F., Cristiani, S., ...
A combination of ground-based (NTT and VLT) and HST (HDF-N and HDF-S) public imaging surveys have been used to collect a sample of 1712 I-selected and 319 $K\leq 21$ galaxies. Photometric redshifts...
IR Colors and Sizes of Faint Galaxies (1999)
Saracco, P., D'Odorico, S., Moorwood, A., Buzzoni, A., Lidman, C.
We present J and Ks band galaxy counts down to J=24 and Ks=22.5 obtained with the new infrared imager/spectrometer, SOFI, at the ESO New Technology Telescope. The co-addition of short, dithered,...
Discovery of a faint Field Methane Brown Dwarf from ES0 NTT and VLT observations (1999)
Cuby, J. G., Saracco, P., Moorwood, A. F. M., D'Odorico, S., Lidman, C., Comeron, F., ...
We report the discovery of an isolated brown dwarf with similar properties to the binary object Gliese 229B and to the newly discovered field brown dwarf SDSS 1624+00. Although exhibiting similar...
Counts, Sizes and Colors of Faint Infrared Selected Galaxies (1999)
Saracco, P., D'Odorico, S., Moorwood, A., Cuby, J. G.
Deep J and Ks band images covering a $5\times5$ arcmin area centered on the NTT Deep Field have been obtained during the Science Verification of SOFI at the NTT. These images were made available via...
Fontana, A., D'Odorico, S., Fosbury, R., Giallongo, E., Hook, R., Poli, F., ...
We present the deep UBVRI observations of the HDF-S NICMOS field obtained as part of the Science Verification of the VLT Unit 1 telescope. The images have been used to construct object catalogs and...
Da Costa, L., Nonino, M., Rengelink, R., Zaggia, S., Benoist, C., Erben, T., ...
This paper presents ground-based data obtained from deep optical and infrared observations of the HST Hubble Deep Field South (HDF-S) field carried out at the ESO 3.5 New Technology Telescope (NTT)....
The NTT Susi Deep Field (1998)
Arnouts, S., D'Odorico, S., Cristiani, S., Zaggia, S., Fontana, A., Giallongo, E.
We present a deep BVrI multicolor catalog of galaxies in a 5.62 sq.arcmin field 80 arcsec south of the high redshift (z=4.7) quasar BR 1202-0725, derived from observations with the direct CCD camera...
Giallongo, E., Fontana, A., Cristiani, S., D'Odorico, S.
The quasar Q1208+1011 (z_{em}=3.8) is the second highest redshift double quasar ever detected. Several indications point toward it being a gravitational lensed system, although a definitive proof is...
The size and geometry of the Ly_alpha clouds (1998)
D'Odorico, V., Cristiani, S., D'Odorico, S., Fontana, A., Giallongo, E., Shaver, P.
Spectra of the QSO pair Q0307-195A,B have been obtained in the Ly-alpha Forest (3660 - 3930 A) and C IV (4720 - 4850 A) regions with a FWHM resolution between 0.7 and 0.5 A. 46 lines have been...
Giallongo, E., D'Odorico, S., Fontana, A., Cristiani, S., Egami, E., Hu, E., ...
We present a deep BVrIK multicolor catalog of galaxies in the field of the high redshift (z=4.7) quasar BR 1202-0725. Reliable colors have been measured for galaxies selected down to R=25. The choice...
Star-formation at z=4.7 in the environment of the QSO BR1202-07 (1998)
Fontana, A., D'Odorico, S., Giallongo, E., Cristiani, S., Monnet, G., Petitjean, P.
We present here the spectrum of the galaxy companion to the z=4.7 quasar BR1202-0725, in the optical range 6000-9000 A, corresponding to 1050-1580 A rest-frame. We detect a strong Lya emission line...
Clustering of Absorbers (1997)
Cristiani, S., D'Odorico, S., D'Odorico, V., Fontana, A., Giallongo, E., Moscardini, L., ...
The observed clustering of Lyman-$\alpha$ lines is reviewed and compared with the clustering of CIV systems. We argue that a continuity of properties exists between Lyman-$\alpha$ and metal systems...
The UV Background and the Lyman alpha Clouds at High Redshift (1997)
Giallongo, E., Cristiani, S., D'Odorico, S., Fontana, A., Savaglio, S.
The estimate of the ionizing UV background through the proximity effect analysis is discussed. Taking into account the correct bending of the column density distribution which appears in high...
The absorption spectrum of the QSO PKS 2126-158 (z_em = 3.27) at high resolution (1997)
D'Odorico, V., Cristiani, S., D'Odorico, S., Fontana, A., Giallongo, E.
Spectra of the z_em = 3.268 quasar PKS 2126-158 have been obtained in the range lambda lambda 4300-6620 A with a resolution R = 27000 and an average signal-to-noise ratio s/n = 25 per resolution...
The clustering properties of the Lyman-alpha clouds (1996)
Cristiani, S., D'Odorico, S., D'Odorico, V., Fontana, A., Giallongo, E., Savaglio, S.
We analyze the clustering properties of a high-resolution (~10 km/s) sample of about 1600 Lyman-alpha lines in the spectra of 15 quasars, obtained in the framework of an ESO key-programme with the...
Savaglio, S., Cristiani, S., D'Odorico, S., Fontana, A., Giallongo, E., Molaro, P.
Spectra of the \ze~$=4.12$ quasar Q$0000-2619$ have been obtained in the range $\lambda\lambda = 4880-8115$ \AA~with a resolution of 13 \kms~and signal--to--noise ratio of $s/n=15-60$ per resolution...
Search for Galaxies at z>4 from a Deep Multicolor Survey (1996)
Giallongo, E., Charlot, S., Cristiani, S., D'Odorico, S., Fontana, A.
We present deep BVrI multicolor photometry in the field of the quasar BR1202-07 (z_{em}=4.694) aimed at selecting field galaxies at z>4. We compare the observed colors of the galaxies in the field...
Giallongo, E., Cristiani, S., D'Odorico, S., Fontana, A., Savaglio, S.
We present results from high resolution (R\simeq 28000) spectra of six high- redshift QSOs taken at the ESO NTT telescope that allow the detailed study of the Ly-alpha population in the redshift...
CLUSTERING PROPERTIES OF THE LY$\alpha$ CLOUDS (1995)
Cristiani, S., D'Odorico, S., D'Odorico, V., Fontana, A., Giallongo, E., Savaglio, S.
The spectra of the QSOs PKS2126-158 ($z_{em}=3.27$) and Q0055-269 ($z_{em}=3.66$) have been observed at high resolution ($2.2 - 2.7 \times 10^4$). Significant clustering, with $\xi \simeq 1$ at...
New results on the Gunn-Peterson Effect at High Redshift (1995)
Giallongo, E., D'Odorico, S., Fontana, A., Savaglio, S., Cristiani, S., Molaro, P.
Attempts to measure the optical depth due to a diffuse intergalactic medium (IGM) in the spectra of high redshift quasars (GP test) within the ESO key program on the intergalactic medium are...
Clustering of the Lyman Alpha Clouds in the Line of Sight to the Z=3.66 QSO 0055-269 (1995)
Cristiani, S., D'Odorico, S., Fontana, A., Giallongo, E., Savaglio, S.
The spectrum of the Q0055-269 ($z=3.66$) has been observed at the resolution of 14 km s$^{-1}$ in the wavelength interval 4750--6300 \AA. The statistical distribution of the Doppler parameter for the...
Cristiani, S., D'Odorico, S., Fontana, A., Giallongo, E., Savaglio, S.
The spectrum of the quasar Q0055-269 ($z=3.66$) has been observed at the resolution of 14 km s$^{-1}$ in the wavelength interval 4750--6300 \AA. We give a list of Lyman$-\alpha$ lines and metal-line...
Giallongo, E., D'Odorico, S., Fontana, A., McMahon, R. G., Savaglio, S., Cristiani, S., ...
A measure of the average depression between Lyman absorption lines in the spectrum of the faint quasar BR1202-0725 ($z_{em}=4.695$) is presented. The relatively high resolution of the spectrum ($\sim...