0000000000336552

AUTHOR

E. Le Floc'h

showing 3 related works from this author

Are long gamma-ray bursts biased tracers of star formation? Clues from the host galaxies of the Swift/BAT6 complete sample of LGRBs

2015

Aims: Long gamma-ray bursts (LGRBs) are associated with massive stars and are therefore linked to star formation. However, the conditions needed for the progenitor stars to produce LGRBs can affect the relation between the LGRB rate and star formation. By using the power of a complete LGRB sample, our long-term aim is to understand whether such a bias exists and, if it does, what its origin is. Methods: To reach our goal we use the Swift/BAT6 complete sample of LGRBs. In this first paper, we build the spectral energy distribution (SED) of the 14 z ⋆) from SED fitting. To investigate the presence of a bias in the LGRB-star formation relation we compare the stellar mass distribution of the LG…

Stellar massMetallicityAstrophysics::High Energy Astrophysical PhenomenaPopulationgamma-ray burst: generalAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciences0103 physical sciencesAstrophysics::Solar and Stellar Astrophysicseducation010303 astronomy & astrophysicsQCAstrophysics::Galaxy AstrophysicsQBPhysicseducation.field_of_study010308 nuclear & particles physicsStar formationAstronomy and AstrophysicsGalaxyStarsgalaxies: photometrySpace and Planetary Sciencegalaxies: star formationSpectral energy distributionAstrophysics::Earth and Planetary AstrophysicsGamma-ray burst[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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Lyman break and ultraviolet-selected galaxies at z ~ 1 - II. PACS 100μm/160μm FIR detections

2013

In this work, we report the Photodetector Array Camera and Spectrometer (PACS) 100 μm/160 μm detections of a sample of 42 GALEX-selected and far-infrared (FIR)-detected Lyman break galaxies (LBGs) at z ~ 1 located in the Cosmic Evolution Survey (COSMOS) field and analyse their ultraviolet (UV) to FIR properties. The detection of these LBGs in the FIR indicates that they have a dust content high enough so that its emission can be directly detected. According to a spectral energy distribution (SED) fitting with stellar population templates to their UV-to-near-IR observed photometry, PACS-detected LBGs tend to be bigger (Reff ~ 4.1 kpc), more massive [log (M*/M⊙) ~ 10.7], dustier [Es(B - V) ~ …

Stellar populationAstrophysicsgalaxies [Radio continuum]medicine.disease_causestar formation [Galaxies]Physical cosmologyhigh-redshift [Galaxies]galaxies [Infrared]galaxies: high-redshiftmedicineLuminous infrared galaxyPhysicsStar formationinfrared: galaxieAstronomyAstronomy and Astrophysicsevolution [Galaxies]RedshiftGalaxygalaxies [Ultraviolet]Space and Planetary Sciencegalaxies: star formationultraviolet: galaxiesSpectral energy distributionradio continuum: galaxiegalaxies: evolutionUltraviolet
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The THESEUS space mission concept: science case, design and expected performances

2018

THESEUS is a space mission concept aimed at exploiting Gamma-Ray Bursts for investigating the early Universe and at providing a substantial advancement of multi-messenger and time-domain astrophysics. These goals will be achieved through a unique combination of instruments allowing GRB and X-ray transient detection over a broad field of view (more than 1sr) with 0.5¿1 arcmin localization, an energy band extending from several MeV down to 0.3¿keV and high sensitivity to transient sources in the soft X-ray domain, as well as on-board prompt (few minutes) follow-up with a 0.7¿m class IR telescope with both imaging and spectroscopic capabilities. THESEUS will be perfectly suited for addressing …

IonizationAtmospheric Sciencecosmological modelCherenkov Telescope Array[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph]AstronomyDark ageMASSIVE SINGLE STARSStar formation rates Gamma ray01 natural sciencesCosmology: observationlocalizationlaw.inventionAstrophysicEinstein Telescopeobservational cosmologylawObservational cosmologyRe-ionizationCosmology: observations; Dark ages; First stars; Gamma-ray: bursts; Re-ionizationLIGOobservations [Cosmology]Telescope010303 astronomy & astrophysicsHigh sensitivityHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsMulti-wavelengthenergy: highsezelegamma-ray burstsCosmology: observationsCosmology: observations; Dark ages; First stars; Gamma-ray: bursts; Re-ionization; Aerospace Engineering; Space and Planetary ScienceAstrophysics::Instrumentation and Methods for Astrophysicsimagingstar: formationburst [Gamma-ray]observatoryGeophysicsDark agesX rays Cosmology: observationAstrophysics - Instrumentation and Methods for AstrophysicsAstrophysics - High Energy Astrophysical PhenomenasignatureStarTIDAL DISRUPTIONGamma-ray: burstAstrophysics::High Energy Astrophysical PhenomenaSIMILAR-TO 6Socio-culturaleFOS: Physical sciencesAerospace EngineeringGamma-ray: burstsobservation [Cosmology]galaxy: luminosityX-ray astronomy: instrumentation7 CANDIDATE GALAXIESAstrophysics::Cosmology and Extragalactic Astrophysicsgamma ray: burst114 Physical sciencesSettore FIS/03 - Fisica della MateriaTelescopeX-raybursts [Gamma-ray]FIS/05 - ASTRONOMIA E ASTROFISICASettore FIS/05 - Astronomia e AstrofisicaFirst star0103 physical sciences[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]KAGRAInstrumentation and Methods for Astrophysics (astro-ph.IM)Astrophysics::Galaxy AstrophysicsFirst starsLIGHT CURVESEinstein Telescope010308 nuclear & particles physicsGravitational wavegravitational radiationAstronomyAstronomy and Astrophysics115 Astronomy Space scienceCherenkov Telescope ArrayredshiftsensitivityRedshiftNEUTRON-STAR MERGERmessengerVIRGOelectromagneticLUMINOSITY FUNCTIONSpace and Planetary ScienceBLACK-HOLEGeneral Earth and Planetary SciencesGamma-ray burst[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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