0000000000336561

AUTHOR

Hector Flores

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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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