R. Scaramella
A5030920057- Astronomy and Astrophysical Research
- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Cosmology and Gravitation Theories
- Adaptive optics and wavefront sensing
- Scientific Research and Discoveries
- Radio Astronomy Observations and Technology
- CCD and CMOS Imaging Sensors
- Geophysics and Gravity Measurements
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Remote Sensing in Agriculture
- History and Developments in Astronomy
- Calibration and Measurement Techniques
- Astrophysical Phenomena and Observations
- Relativity and Gravitational Theory
- Advanced Mathematical Theories and Applications
- Astrophysics and Star Formation Studies
- Statistical and numerical algorithms
- Spacecraft Design and Technology
- Impact of Light on Environment and Health
- Computational Physics and Python Applications
- Spectroscopy and Laser Applications
National Institute for Astrophysics
2013-2024
Astronomical Observatory of Rome
2014-2024
European Space Operations Centre
2024
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2018-2024
European Space Research and Technology Centre
2020
Sorbonne Université
2016-2020
Centre National de la Recherche Scientifique
2016-2020
Institut d'Astrophysique de Paris
2016-2020
Institute for Space Astrophysics and Planetology
2004-2019
Sapienza University of Rome
2018
We explore the inter-relationships between mass, star-formation rate and environment in SDSS, zCOSMOS other surveys. The differential effects of mass are completely separable to z ~ 1, indicating that two distinct processes operating, "mass-quenching" "environment-quenching". Environment-quenching, at fixed over-density, evidently does not change with epoch suggesting it occurs as large-scale structure develops Universe. observed constancy mass-function shape for star-forming galaxies,...
We present photometric redshifts for an uniquely large and deep sample of 522286 objects with i'_{AB}<25 in the Canada-France Legacy Survey ``Deep Survey'' fields, which cover a total effective area 3.2 deg^2. use 3241 spectroscopic 0<z<5 from VIMOS VLT Deep as calibration to derive these redshifts. devise robust method removes systematic trends significantly reduces fraction catastrophic errors. our unique detailed assessment robustness redshift sample. For selected at i'_{AB}<24, we reach...
zCOSMOS is a large-redshift survey that being undertaken in the COSMOS field using 600 hr of observation with VIMOS spectrograph on 8 m VLT. The designed to characterize environments galaxies from 100 kpc scales galaxy groups up Mpc scale cosmic web and produce diagnostic information active galactic nuclei. consists two parts: (1) zCOSMOS-bright, magnitude-limited I-band IAB < 22.5 sample about 20,000 0.1 z 1.2 covering whole 1.7 deg2 ACS field, for which parameters at ~ 0.7 are be directly...
This paper presents the ``First Epoch'' sample from VIMOS VLT Deep Survey (VVDS). The VVDS goals, observations, data reduction with VIPGI, and redshift measurement KBRED are discussed. Data have been obtained VIsible Multi Object Spectrograph (VIMOS) on ESO-VLT UT3, allowing to observe ~600 slits simultaneously at R~230. A total of 11564 objects observed in VVDS-02h VVDS-CDFS fields over a area 0.61deg^2, selected solely basis apparent magnitude 17.5 <=I_{AB} <=24. covers range 0 <...
We present spectroscopic redshifts of a large sample galaxies with IAB < 22.5 in the COSMOS field, measured from spectra 10,644 objects that have been obtained first two years observations zCOSMOS-bright redshift survey. These include statistically complete subset 10,109 objects. The average accuracy individual is 110 km s−1, independent redshift. reliability described by Confidence Class has empirically calibrated through repeat over 600 galaxies. There very good agreement between and...
We present the galaxy stellar mass function (GSMF) to redshift z ≃ 1, based on analysis of about 8500 galaxies with I < 22.5 (AB mag) over 1.4 deg2, which are part zCOSMOS-bright 10k spectroscopic sample. investigate total GSMF, as well contributions early- and late-type (ETGs LTGs, respectively), defined by different criteria (broad-band spectral energy distribution, morphology, properties, or star formation activities). unveil a galaxybimodality in global whose shape is more accurately...
Euclid is an ESA mission designed to constrain the properties of dark energy and gravity via weak gravitational lensing galaxy clustering. It will carry out a wide area imaging spectroscopy survey (EWS) in visible near-infrared, covering roughly 15,000 square degrees extragalactic sky on six years. The wide-field telescope instruments are optimized for pristine PSF reduced straylight, producing very crisp images. This paper presents building reference survey: sequence pointings EWS, Deep...
We describe the completed VIMOS VLT Deep Survey, and final data release of 35016 galaxies type-I AGN with measured spectroscopic redshifts up to redshift z~6.7, in areas 0.142 8.7 square degrees, volumes from 0.5x10^6 2x10^7h^-3Mpc^3. have selected samples based solely on their i-band magnitude reaching i_{AB}=24.75. Spectra been obtained ESO-VLT, integrating 0.75h, 4.5h 18h for Wide, Deep, Ultra-Deep nested surveys. A total 1263 re-observed independently within VVDS, VIPERS MASSIV They are...
The Euclid ERO showcase Euclid's capabilities in advance of its main mission by targeting 17 astronomical objects, including galaxy clusters, nearby galaxies, globular and star-forming regions. A total 24 hours observing time was allocated the early months operation, scientific community engaged through an public data release. We describe development pipeline to create visually compelling images while simultaneously meeting demands within launch leveraging a pragmatic data-driven strategy....
will provide deep near-infrared (NIR) imaging to ∼26.5 AB magnitude over ∼59 deg^2 in its and auxiliary fields. The Cosmic DAWN survey combines dedicated archival UV--NIR observations matched depth multiwavelength of the consistently measured NIR-selected photometric catalogues, accurate redshifts, measurements galaxy properties a redshift z∼ 10. catalogues include Spitzer IRAC data that are critical for stellar mass at z ≳ 2.5 high-z science. These complement standard which not data. In...
In a companion Letter (Arnouts et al.) we present new measurements of the galaxy luminosity function at 1500 Å out to z ~ 1 using Galaxy Evolution Explorer VIMOS-VLT Deep Survey observations (1039 galaxies with NUV ≤ 24.5 and > 0.2) higher existing data sets. this use same sample study evolution FUV density ρ1500. We detect consistent (1 + z)2.5±0.7 rise z)0.5±0.4 for 1. The from most UV-luminous (UVLGs) is undergoing dramatic (30 times) between 0 < UVLGs are responsible significant fraction...
This paper presents the VIMOS VLT Deep Survey around Chandra Field South (CDFS). We have measured 1599 new redshifts with on European Observatory Very Large Telescope – UT3, in an area arcmin2, including 784 Hubble Space Advanced Camera for Surveys GOODS area. 30% of all objects been observed independently magnitude, indicating that sample is purely magnitude limited. reached unprecedented completeness level 84% terms ratio secure measurements vs. objects, while 95% a redshift measurement. A...
{This paper presents the VIMOS VLT Deep Survey around Chandra Field South (CDFS). We have measured 1599 new redshifts with on European Observatory Very Large Telescope - UT3, in an area 21x21.6 arcmin^2, including 784 Hubble Space Advanced Camera for Surveys GOODS area. 30% of all objects I_AB=24 been observed independently magnitude, indicating that sample is purely magnitude limited. reached unprecedented completeness level 88% terms ratio secure measurements vs. objects, while 95% a...
We investigate the evolution of galaxy luminosity function from VIMOS-VLT Deep Survey (VVDS) present to z=2 in five (U, B, V, R and I) rest-frame band-passes. use first epoch VVDS deep sample 11,034 spectra selected at 17.5 <= I_{AB} 24.0, on which we apply Algorithm for Luminosity Function (ALF), described this paper. observe a substantial with redshift global functions all bands. From z=0.05 z=2, measure brightening characteristic magnitude M* included range 1.8-2.5, 1.7-2.4, 1.2-1.9,...
(abridged abstract) We present an analysis of the stellar mass growth over last 10 Gyrs using a large 3.6$\mu$ selected sample. split our sample into active (blue) and quiescent (red) galaxies. Our measurements K-LFs LD evolution support idea that fraction galaxies is already assembled at $z\sim 1.2$. Based on mass-to-light ratio (in K-band) for spectroscopic sub-sample, we derive density entire find global well reproduced by star formation rate derived from UV dust corrected measurements....