A5025290822- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Gamma-ray bursts and supernovae
- Stellar, planetary, and galactic studies
- Astronomical Observations and Instrumentation
- Astrophysics and Cosmic Phenomena
- Astrophysics and Star Formation Studies
- Astrophysical Phenomena and Observations
- Radio Astronomy Observations and Technology
- Cosmology and Gravitation Theories
- SAS software applications and methods
- Scientific Research and Discoveries
- Remote Sensing in Agriculture
- CCD and CMOS Imaging Sensors
- Adaptive optics and wavefront sensing
- Astro and Planetary Science
- Calibration and Measurement Techniques
- Pulsars and Gravitational Waves Research
- Impact of Light on Environment and Health
- Spectroscopy and Laser Applications
- Gaussian Processes and Bayesian Inference
- Geophysics and Gravity Measurements
- History and Developments in Astronomy
- Plant Water Relations and Carbon Dynamics
- Computational Physics and Python Applications
National Centre for Nuclear Research
2015-2024
Aix-Marseille Université
2017-2024
Centre National de la Recherche Scientifique
2017-2024
Laboratoire d’Astrophysique de Marseille
2014-2023
Château Gombert
2018-2023
LAM Foundation
2020
Center for Theoretical Physics
2007-2018
University of Bologna
2018
Nagoya University
2010-2017
John Paul II Catholic University of Lublin
2017
We describe the construction and general features of VIPERS, VIMOS Public Extragalactic Redshift Survey. This `Large Programme' has been using ESO VLT with aim building a spectroscopic sample ~100,000 galaxies i_{AB}<22.5 0.5
We present in this paper the general real- and redshift-space clustering properties of galaxies as measured first data release VIPERS survey. is a large redshift survey designed to probe distant Universe its large-scale structure at 0.5 < z 1.2. describe analysis global sample discuss completeness associated corrections. This allows us measure galaxy with an unprecedented accuracy these redshifts. From distortions observed pattern we provide measurement growth rate = 0.8: f\sigma_8 0.47 +/-...
In this data release from the LOFAR Two-metre Sky Survey (LoTSS) we present 120-168MHz images covering 27% of northern sky. Our coverage is split into two regions centred at approximately 12h45m +44$^\circ$30' and 1h00m +28$^\circ$00' spanning 4178 1457 square degrees respectively. The were derived 3,451hrs (7.6PB) High Band Antenna which corrected for direction-independent instrumental properties as well direction-dependent ionospheric distortions during extensive, but fully automated,...
We present the first Public Data Release (PDR-1) of VIMOS Extragalactic Survey (VIPERS). It comprises 57 204 spectroscopic measurements together with all additional information necessary for optimal scientific exploitation data, in particular associated photometric and quantification survey completeness. VIPERS is an ESO Large Programme designed to build a sample ' 100 000 galaxies iAB < 22.5 0.5 z 1.5 high sampling rate (~45%). The targets are selected from CFHTLS-Wide five-band catalogues...
We present the full public data release (PDR-2) of VIMOS Public Extragalactic Redshift Survey (VIPERS), performed at ESO VLT. redshifts, spectra, CFHTLS magnitudes and ancillary information (as masks weights) for a complete sample 86 775 galaxies (plus 4732 other objects, including stars serendipitous galaxies); we also include their photometrically-selected parent catalogue. The is magnitude limited to i AB ≤ 22.5, with an additional colour-colour pre-selection devised as exclude z <...
We present measurements of the growth rate cosmological structure from modelling anisotropic galaxy clustering measured in final data release VIPERS survey. The analysis is carried out configuration space and based on first two even multipole moments auto-correlation function, redshift bins spanning range $0.5 < z 1.2$. provide robust cosmology-independent corrections for angular selection allowing recovery underlying amplitude at percent level down to Mpc scale. discuss several improvements...
Abstract Modern and future surveys effectively provide a panchromatic view for large numbers of extragalactic objects. Consistently modeling these multiwavelength survey data is critical but challenging task studies. The Code Investigating GALaxy Emission ( cigale ) an efficient python code spectral energy distribution (SED) fitting galaxies active galactic nuclei (AGNs). Recently, major extension (named x-cigale has been developed to account AGN/galaxy X-ray emission improve AGN at UV-to-IR...
Abstract The study of galaxy evolution hinges on our ability to interpret multiwavelength observations in terms their physical properties. To do this, we rely spectral energy distribution (SED) models, which allow us infer parameters from spectrophotometric data. In recent years, thanks wide and deep multiwave band surveys, the volume high-quality data have significantly increased. Alongside increased data, algorithms performing SED fitting improved, including better modeling prescriptions,...
ABSTRACT Source classifications, stellar masses, and star-formation rates are presented for ≈80 000 radio sources from the first data release of Low Frequency Array Two-metre Sky Survey (LoTSS) Deep Fields, which represents widest deep survey ever undertaken. Using multi-wavelength spanning ultraviolet to far-infrared, spectral energy distribution (SED) fitting is carried out all LoTSS host galaxies using four different SED codes, two include modelling contributions an active galactic...
The role of radio mode active galactic nuclei (AGN) feedback on galaxy evolution is still under debate. In this study we utilized a combination continuum observations and optical integral field spectroscopic (IFS) data to explore the impact AGN their host galaxies at global subgalactic scales. We constructed comprehensive radio-IFS sample comprising 5548 with redshift z<0.15 by cross-matching LOFAR Two-Metre Sky Survey (LoTSS) Mapping Nearby Galaxies APO (MaNGA) survey. revisited tight...
We measure the evolution of galaxy stellar mass function from z=1.3 to z=0.5 using first 53,608 redshifts ongoing VIMOS Public Extragalactic Survey (VIPERS). estimate at several epochs discussing in detail amount cosmic variance affecting our estimate. find that Poisson noise and VIPERS survey are comparable with statistical uncertainties large surveys local universe. data allow us determine unprecedented accuracy high-mass tail function, which includes a significant number galaxies usually...
Aims. We investigate the dependence of galaxy clustering on luminosity and stellar mass in redshift range 0.5 < z 1.1, using first ~ 55 000 redshifts from VIMOS Public Extragalactic Redshift Survey (VIPERS).
We present the first quantitative detection of large-scale filamentary structure at $z \simeq 0.7$ in large cosmological volume probed by VIMOS Public Extragalactic Redshift Survey (VIPERS). use simulations to show capability VIPERS recover robust topological features galaxy distribution, particular network. then investigate how galaxies with different stellar masses and activities are distributed around filaments find a significant segregation, most massive or quiescent being closer...
In the currently debated context of using clusters galaxies as cosmological probes, need for well-defined cluster samples is critical. The XXL Survey has been specifically designed to provide a well characterised sample some 500 X-ray detected suitable studies. main goal present article make public and describe properties catalogue in its state, associated catalogues super-clusters fossil groups. We release containing 365 total. give details follow-up observations explain procedure adopted...
Aims. The Herschel Extragalactic Legacy Project (HELP) focuses on the data from ESA’s mission, which covered over 1300 deg 2 and is preparing to publish a multi-wavelength catalogue of millions objects. Our main goal find best approach simultaneously fitting spectral energy distributions (SEDs) galaxies across wide redshift range obtain homogeneous estimates physical parameters detected infrared (IR) galaxies. Methods. We perform SED ultraviolet(UV)/near-infrared(NIR) far-infrared(FIR)...
We carry out a joint analysis of redshift-space distortions and galaxy-galaxy lensing, with the aim measuring growth rate structure; this is key quantity for understanding nature gravity on cosmological scales late-time cosmic acceleration. make use final VIPERS redshift survey dataset, which maps portion Universe at $z \simeq 0.8$, lensing data from CFHTLenS over same area sky. build consistent theoretical model that combines non-linear galaxy biasing distortion models, confront it...
ABSTRACT We present the Herschel Extragalactic Legacy Project (HELP). This project collates, curates, homogenizes, and creates derived data products for most of premium multiwavelength extragalactic sets. The sky boundaries first release cover 1270 deg2 defined by SPIRE survey fields; notably Multi-tiered Survey (HerMES) Atlas (H-ATLAS). Here, we describe motivation principal elements in design project. Guiding principles are transparent or ‘open’ methodologies with care reproducibility...
The Low Frequency Array (LOFAR) Two-metre Sky Survey (LoTSS) is a sensitive, high-resolution 120-168 MHz survey split across multiple tiers over the northern sky. first LoTSS Deep Fields data release consists of deep radio continuum imaging at 150 Bo\"{o}tes, European Large Area Infrared Space Observatory Survey-North 1 (ELAIS-N1), and Lockman Hole fields, down to rms sensitivities $\sim$32, 20, 22 $\mu$Jy beam$^{-1}$, respectively. In this paper we present consistent photometric redshift...
We exploit the first public data release of VIPERS to investigate environmental effects in galaxy evolution between $z\sim0.5$ and $0.9$. The large number spectroscopic redshifts over an area about $10\,\mathrm{deg}^2$ provides a sample with high statistical power. accurate redshift measurements, $\sigma_z = 0.00047(1+z_\mathrm{spec})$, allow us robustly isolate galaxies living lowest- highest-density environments, as defined terms spatial 3D density contrast. estimate stellar mass function...
We explore the evolution of Colour-Magnitude Relation (CMR) and Luminosity Function (LF) at 0.4<z<1.3 from VIMOS Public Extragalactic Redshift Survey (VIPERS) using ~45,000 galaxies with precise spectroscopic redshifts down to i'_AB<22.5 over ~10.32 deg^2 in two fields. From z=0.5 z=1.3 LF CMR are well defined for different galaxy populations M^*_B evolves by ~1.04(1.09)+/-0.06(0.10) mag total (red) sample. compare criteria selecting early-type (ETGs): (1) fixed cut rest-frame (U-V) colours,...