The host galaxies of long-duration GRBs in a cosmological hierarchical scenario

Abstract

We developed a Monte Carlo code to generate long-duration gamma ray burst (LGRB) events within cosmological hydrodynamical simulations consistent with the concordance model. As structure is assembled, LGRBs are generated in the substructure that formed galaxies today. We adopted the collapsar model so that LGRBs are produced by single, massive stars at the final stage of their evolution. We found that the observed properties of the LGRB host galaxies (HGs) are reproduced if LGRBs are also required to be generated by low metallicity stars. The low metallicity condition imposed on the progenitor stars of LGRBs selects a sample of HGs with mean gas abundances of 12 + log O/H \~ 8.6. For z<1 the simulated HGs of low metallicity LGRB progenitors tend to be faint, slow rotators with high star formation efficiency, compared with the general galaxy population, in agreement with observations. At higher redshift, our results suggest that larger systems with high star formation activity could also contribute to the generation of LGRBs from low metallicity progenitors since the fraction of low metallicity gas available for star formation increases for all systems with look-back time. Under the hypothesis of our LGRB model, our results support the claim that LGRBs could be unbiased tracers of star formation at high redshifts.

Final revised version with minor changes. 9 pages, 9 figures, mn2e.cls. To appear in MNRAS

References in corpus (13)

• The Mass-Metallicity Relation at z~2
• Long gamma-ray bursts and core-collapse supernovae have different environments
• UV star-formation rates of GRB host galaxies
• Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
• Binary star progenitors of long gamma-ray bursts
• Supernova 2006aj and the associated X-Ray Flash 060218
• On the nature of nearby GRB/SN host galaxies
• Ly-alpha and UV emission from high-redshift GRB hosts: To what extent do GRBs trace star formation?
• Gamma-Ray Burst Selected High Redshift Galaxies: Comparison to Field Galaxy Populations to z~3
• Clues for the origin of the fundamental metallicity relations. I: The hierarchical building up of the structure
• Groups of galaxies: relationship between environment and galaxy properties
• Millimetric Properties of Gamma Ray Burst Host Galaxies
• Photometric redshift of the GRB 981226 host galaxy

Cited by in corpus (15)

• Discerning the physical origins of cosmological Gamma-ray bursts based on multiple observational criteria: the cases of z=6.7 GRB 080913, z=8.3 GRB 090423, and some short/hard GRBs
• The Galaxy Population Hosting Gamma-Ray Bursts
• Star Formation History up to z = 7.4: Implications for Gamma-Ray Bursts and the Cosmic Metallicity Evolution
• Do long-duration GRBs follow star formation?
• Modeling The GRB Host Galaxy Mass Distribution: Are GRBs Unbiased Tracers of Star Formation?
• Detection of GRB 060927 at z = 5.47: Implications for the Use of Gamma-Ray Bursts as Probes of the End of the Dark Ages
• The chemical enrichment of long-GRB nurseries up to z=2
• The host galaxy of GRB031203: a new spectroscopic study
• Mass and metallicity scaling relations of high redshift star-forming galaxies selected by GRBs
• PopIII signatures in the spectra of PopII/I GRBs
• One star, two stars, or both? Investigating metallicity-dependant models for Gamma-Ray Burst progenitors with the IllustrisTNG simulation
• The First Billion Years project: gamma-ray bursts at z>5
• The luminous, massive and solar metallicity galaxy hosting the Swift gamma-ray burst, GRB 160804A at z = 0.737
• The nature of Long-GRB host galaxies from chemical abundances
• Local starburst conditions and formation of GRB 980425 / SN 1998bw within a collisional ring