A5011138795- Astronomy and Astrophysical Research
- Astronomical Observations and Instrumentation
- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Adaptive optics and wavefront sensing
- Calibration and Measurement Techniques
- Cosmology and Gravitation Theories
- Spectroscopy and Laser Applications
- History and Developments in Astronomy
- Superconducting and THz Device Technology
- Spectroscopy and Chemometric Analyses
- Distributed and Parallel Computing Systems
- Scientific Research and Discoveries
- Advanced Computational Techniques and Applications
- Astrophysical Phenomena and Observations
- Gamma-ray bursts and supernovae
- Atmospheric Ozone and Climate
- Astrophysics and Star Formation Studies
- Semantic Web and Ontologies
- Radio Astronomy Observations and Technology
- Impact of Light on Environment and Health
- Research Data Management Practices
- Geophysics and Gravity Measurements
- Advanced Database Systems and Queries
- CCD and CMOS Imaging Sensors
Laboratoire d’Astrophysique de Marseille
2014-2025
Château Gombert
2007-2025
Centre National de la Recherche Scientifique
2011-2024
Aix-Marseille Université
2014-2024
Centre de Recerca Matemàtica
2023
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2022
CEA Paris-Saclay
2022
Kavli Institute for the Physics and Mathematics of the Universe
2012-2022
Princeton University
2022
Astrophysique, Instrumentation et Modélisation
2022
We present the deepest 100 to 500 μm far-infrared observations obtained with Herschel Space Observatory as part of GOODS-Herschel key program, and examine infrared (IR) 3–500 spectral energy distributions (SEDs) galaxies at 0 < z 2.5, supplemented by a local reference sample from IRAS, ISO, Spitzer, AKARI data. determine projected star formation densities their radio mid-IR continuum sizes.
Euclid is a space-based survey mission from the European Space Agency designed to understand origin of Universe's accelerating expansion. It will use cosmological probes investigate nature dark energy, matter and gravity by tracking their observational signatures on geometry universe cosmic history structure formation. The optimised for two independent primary probes: Weak gravitational Lensing (WL) Baryonic Acoustic Oscillations (BAO). payload consists 1.2 m Korsch telescope provide large...
Exo-Dat is a database and an information system created primarily in support of the exoplanet program COnvection ROtation & planetary Transits (CoRoT) mission. In directions CoRoT pointings, it provides united interface to several sets data: stellar published catalogs, photometric spectroscopic data obtained during mission preparation, results from follow-up observations, mission-specific technical parameters. The new constitute subcatalog Exo-Cat, give consistent 4-color photometry 14.0...
PFS (Prime Focus Spectrograph), a next generation facility instrument on the 8.2-meter Subaru Telescope, is very wide-field, massively multiplexed, optical and near-infrared spectrograph. Exploiting prime focus, 2394 reconfigurable fibers will be distributed over 1.3 deg field of view. The spectrograph has been designed with 3 arms blue, red, cameras to simultaneously observe spectra from 380nm 1260nm in one exposure at resolution ~1.6-2.7A. An international collaboration developing this...
We describe the European Large Area ISO Survey (ELAIS). ELAIS was largest single Open Time project conducted by ISO, mapping an area of 12 deg2 at 15 μm with ISOCAM and 90 ISOPHOT. Secondary surveys in other bands were undertaken team within fields primary survey, 6 being covered 6.7 1 175 μm. This paper discusses goals techniques employed its construction, as well presenting details observations carried out, data from which are now public domain. outline 'preliminary analysis' led to...
We present the final band-merged European Large-Area ISO Survey (ELAIS) Catalogue at 6.7, 15, 90 and 175 μm, associated data U, g′, r′, i′, Z, J, H, K 20 cm. The origin of survey, infrared radio observations, data-reduction optical identifications are briefly reviewed, a summary area covered completeness limit for each band is given. A detailed discussion band-merging association strategy total consists 3762 sources. 23 per cent 15-μm sources 75 6.7-μm stars. For extragalactic observed in...
<i>Context. <i/> <i>Aims. <i/>In this work, we describe the pipeline for fast supervised classification of light curves observed by CoRoT exoplanet CCDs. We present results obtained first four measured fields, which represent a one-year in-orbit operation.<i>Methods. <i/>The basis adopted methodology has been described in detail previous paper, as is its application to OGLE database. Here, modifications algorithms and training set optimize performance when applied data.<i>Results....
The Prime Focus Spectrograph (PFS) is an optical/near-infrared multifiber spectrograph with 2394 science fibers distributed across a 1.3-deg diameter field of view at the Subaru 8.2-m telescope. wide wavelength coverage from 0.38 μm to 1.26 μm, resolving power 3000, simultaneously strengthens its ability target three main survey programs: cosmology, galactic archaeology and galaxy/AGN evolution. A medium resolution mode 5000 for 0.71 0.89 will also be available by simply exchanging...
We present results and source counts at 90 μm extracted from the preliminary analysis of European Large Area ISO Survey (ELAIS). The survey covered about 12 deg2 sky in four main areas was carried out with ISOPHOT instrument onboard Infrared Space Observatory (ISO). is least an order magnitude deeper than IRAS 100-μm expected to provide constraints on formation evolution galaxies. majority detected sources are associated galaxies optical images. In some cases associations interacting pairs...
We present the first results of surface photometry a sample Blue Compact Dwarf galaxies (hereafter BCDGs). The images were obtained at Pic du Midi (France) and Asiago (Italy). In this paper, we produce an atlas isophotal maps brightness distribution profiles for 23 objects in Northern hemisphere. Short individual descriptions galaxies, tables photometric parameters are given. main result is that substantial fraction showing distribution, consistently with previous observations. integral...
The Prime Focus Spectrograph (PFS) of the Subaru Measurement Images and Redshifts (SuMIRe) project has been endorsed by Japanese community as one main future instruments 8.2-meter telescope at Mauna Kea, Hawaii. This optical/near-infrared multi-fiber spectrograph targets cosmology with galaxy surveys, Galactic archaeology, studies galaxy/AGN evolution. Taking advantage Subaru's wide field view, which is further extended recently completed Wide Field Corrector, PFS will enable us to carry out...
PFS (Prime Focus Spectrograph), a next generation facility instrument on the 8.2-meter Subaru Telescope, is very wide-field, massively multiplexed, optical and near-infrared spectrograph. Exploiting prime focus, 2394 reconfigurable fibers will be distributed over 1.3 deg field of view. The spectrograph has been designed with 3 arms blue, red, cameras to simultaneously observe spectra from 380nm 1260nm in one exposure at resolution ~ 1.6-2.7Å. An international collaboration developing this...
We present the luminosity function of 90-μm-selected galaxies from European Large Area ISO Survey (ELAIS), extending to z=0.3. Their luminosities are in range 109<h65−2L/L⊙<1012, i.e. non-ultraluminous. From our sample 37 reliably detected ELAIS S1 region Efstathiou et al. S90 ≥ 100 mJy data base, we have found optical, 15-μm or 1.4-GHz identifications for 24 (65 per cent). obtained 2dF and UK Schmidt FLAIR spectroscopy 89 cent rigid multivariate flux limits. construct a assuming that (i)...
We present a re-analysis of the European Large Area Infrared Space Observatory (ISO) Survey (ELAIS) 90-μm observations carried out with ISOPHOT, an instrument on board ISO Agency. With more than 12 deg2, ELAIS survey is largest area covered by in single programme and about one order magnitude deeper IRAS 100-μm survey. The data analysis presented was mainly performed phot interactive software but using pairwise method Stickel et al. for signal processing from edited raw to per chopper...
The Spectral and Photometric Imaging Receiver (SPIRE) is one of three scientific instruments onboard the European Space Agency's Herschel Observatory launched on 14 May 2009. low to medium resolution spectroscopic capability SPIRE provided by an imaging Fourier transform spectrometer Mach-Zehnder configuration. Results from in flight performance verification phase are presented conformance with instrument design specifications reviewed.
We present an update to the data processing pipelines that generate calibrated spectral products from Spectral and Photometric Imaging Receiver (SPIRE), one of three scientific instruments onboard European Space Agency's Herschel Observatory launched on 14 May 2009. The process telemetry SPIRE's imaging Fourier Transform Spectrometer (FTS) taken in point source, jiggle- raster-map observing modes, producing spectra low-, medium-, high-, mixed low- high-spectral resolution. While order...
We present the data processing pipeline to generate calibrated products from Spectral and Photometric Imaging Receiver (SPIRE) imaging Fourier Transform Spectrometer. The processes telemetry SPIRE point source, jiggle- raster-map observations, producing spectra in low-, medium-, high-, mixed low- highresolution modes. spectrometer shares some elements with photometer pipeline, including conversion of packets into timelines calculation bolometer voltages raw telemetry. following fundamental...
The objective of the SPHERE Data Center is to optimize scientific return at VLT, by providing optimized reduction procedures, services users and publicly available reduced data. This paper describes our motivation, implementation service (partners, infrastructure developments), services, description on-line data, future developments. operational has already provided data with a good reactivity many observers. first public have been made in 2017. gathering strong expertise on very position...
The Prime Focus Spectrograph (PFS) is an optical/near-infrared multi-fiber spectrograph with 2394 science fibers, which are distributed in 1.3 degree diameter field of view at Subaru 8.2-meter telescope. simultaneous wide wavelength coverage from 0.38 um to 1.26 um, the resolving power 3000, strengthens its ability target three main survey programs: cosmology, Galactic archaeology, and galaxy/AGN evolution. A medium resolution mode 5000 for 0.71 0.89 also will be available by simply...
PFS (Prime Focus Spectrograph), a next generation facility instrument on the Subaru telescope, is now being tested telescope. The equipped with very wide (1.3 degrees in diameter) field of view Subaru's prime focus, high multiplexity by 2394 reconfigurable fibers, and waveband spectrograph that covers from 380nm to 1260nm simultaneously one exposure. Currently engineering observations are ongoing Prime Instrument (PFI), Metrology Camera System (MCS), first spectrpgraph module (SM1) visible...
Although biodiversity has been extensively studied over the last centuries, recent evidences suggest that links between collected data are still be missing. In order to fill this knowledge gap and at initiative of CNRS Institute Ecology Environment (INEE), IndexMed, a unique multidisciplinary consortium consisting ecologists, sociologists, economists, mathematicians, IT specialists astronomers was created. Through exploratory projects, IndexMed develops new methods for analyzing on...
We report the discovery of first hyperluminous infrared galaxy (HyLIG) in course European Large Area ISO Survey (ELAIS). This object has been detected by at 6.7, 15 and 90 μm, is found to be a broad-line, radio-quiet quasar redshift . From detailed multicomponent model fit spectral energy distribution, we derive total IR luminosity LIR, discuss possible existence starburst contributing far-IR output. Observations date present no evidence for lens magnification. one very few HyLIGs with X-ray...