The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario
We developed a Monte Carlo code to generate long-duration gamma-ray burst (LGRB) events within cosmological hydrodynamical simulations consistent with the concordance A cold dark matter model. As structure is assembled, LGRBs are generated in the substructure that formed galaxies today. We adopted t...
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00358711_v375_n2_p665_Nuza |
| Aporte de: |
| id |
todo:paper_00358711_v375_n2_p665_Nuza |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_00358711_v375_n2_p665_Nuza2023-10-03T14:46:48Z The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario Nuza, S.E. Tissera, P.B. Pellizza, L.J. Lambas, D.G. Scannapieco, C. De Rossi, M.E. Cosmology: theory Galaxy: abundances Galaxy: evolution Gamma-rays: bursts Methods: N-body simulations We developed a Monte Carlo code to generate long-duration gamma-ray burst (LGRB) events within cosmological hydrodynamical simulations consistent with the concordance A cold dark matter 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. © 2007 RAS. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00358711_v375_n2_p665_Nuza |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cosmology: theory Galaxy: abundances Galaxy: evolution Gamma-rays: bursts Methods: N-body simulations |
| spellingShingle |
Cosmology: theory Galaxy: abundances Galaxy: evolution Gamma-rays: bursts Methods: N-body simulations Nuza, S.E. Tissera, P.B. Pellizza, L.J. Lambas, D.G. Scannapieco, C. De Rossi, M.E. The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario |
| topic_facet |
Cosmology: theory Galaxy: abundances Galaxy: evolution Gamma-rays: bursts Methods: N-body simulations |
| description |
We developed a Monte Carlo code to generate long-duration gamma-ray burst (LGRB) events within cosmological hydrodynamical simulations consistent with the concordance A cold dark matter 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. © 2007 RAS. |
| format |
JOUR |
| author |
Nuza, S.E. Tissera, P.B. Pellizza, L.J. Lambas, D.G. Scannapieco, C. De Rossi, M.E. |
| author_facet |
Nuza, S.E. Tissera, P.B. Pellizza, L.J. Lambas, D.G. Scannapieco, C. De Rossi, M.E. |
| author_sort |
Nuza, S.E. |
| title |
The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario |
| title_short |
The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario |
| title_full |
The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario |
| title_fullStr |
The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario |
| title_full_unstemmed |
The host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario |
| title_sort |
host galaxies of long-duration gamma-ray bursts in a cosmological hierarchical scenario |
| url |
http://hdl.handle.net/20.500.12110/paper_00358711_v375_n2_p665_Nuza |
| work_keys_str_mv |
AT nuzase thehostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT tisserapb thehostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT pellizzalj thehostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT lambasdg thehostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT scannapiecoc thehostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT derossime thehostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT nuzase hostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT tisserapb hostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT pellizzalj hostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT lambasdg hostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT scannapiecoc hostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario AT derossime hostgalaxiesoflongdurationgammarayburstsinacosmologicalhierarchicalscenario |
| _version_ |
1782029683472203776 |