dc.contributor.author | Perley, D. A. | |
dc.contributor.author | Tanvir, N. R. | |
dc.contributor.author | Hjorth, J. | |
dc.contributor.author | Laskar, T. | |
dc.contributor.author | Berger, Edo | |
dc.contributor.author | Chary, R. | |
dc.contributor.author | Postigo, A. de Ugarte | |
dc.contributor.author | Fynbo, J. P. U. | |
dc.contributor.author | Krühler, T. | |
dc.contributor.author | Levan, A. J. | |
dc.contributor.author | Michałowski, M. J. | |
dc.contributor.author | Schulze, S. | |
dc.date.accessioned | 2017-03-02T21:08:29Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Perley, D. A., N. R. Tanvir, J. Hjorth, T. Laskar, E. Berger, R. Chary, A. de Ugarte Postigo, et al. 2016. The Swift Grb Host Galaxy Legacy Survey— Ii. Rest-Frame Nir Luminosity Distribution and Evidence for a Near-Solar Metallicity Threshold. The Astrophysical Journal 817, no. 1: 8. doi:10.3847/0004-637x/817/1/8. | en_US |
dc.identifier.issn | 1538-4357 | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:30498454 | |
dc.description.abstract | We present rest-frame near-IR (NIR) luminosities and stellar masses for a large and uniformly selected population of gamma-ray burst (GRB) host galaxies using deep Spitzer Space Telescope imaging of 119 targets from the Swift GRB Host Galaxy Legacy Survey spanning 0.03 < z < 6.3, and we determine the effects of galaxy evolution and chemical enrichment on the mass distribution of the GRB host population across cosmic history. We find a rapid increase in the characteristic NIR host luminosity between z ~ 0.5 and z ~ 1.5, but little variation between z ~ 1.5 and z ~ 5. Dust-obscured GRBs dominate the massive host population but are only rarely seen associated with low-mass hosts, indicating that massive star-forming galaxies are universally and (to some extent) homogeneously dusty at high redshift while low-mass star-forming galaxies retain little dust in their interstellar medium. Comparing our luminosity distributions with field surveys and measurements of the high-z mass–metallicity relation, our results have good consistency with a model in which the GRB rate per unit star formation is constant in galaxies with gas-phase metallicity below approximately the solar value but heavily suppressed in more metal-rich environments. This model also naturally explains the previously reported "excess" in the GRB rate beyond z gsim 2; metals stifle GRB production in most galaxies at z < 1.5 but have only minor impact at higher redshifts. The metallicity threshold we infer is much higher than predicted by single-star models and favors a binary progenitor. Our observations also constrain the fraction of cosmic star formation in low-mass galaxies undetectable to Spitzer to be small at z < 4. | en_US |
dc.description.sponsorship | Astronomy | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | American Astronomical Society | en_US |
dc.relation.isversionof | doi:10.3847/0004-637X/817/1/8 | en_US |
dc.relation.hasversion | https://arxiv.org/pdf/1504.02479.pdf | en_US |
dash.license | OAP | |
dc.subject | gamma-ray burst: general | en_US |
dc.subject | galaxies: star-formation | en_US |
dc.subject | galaxies: evolution | en_US |
dc.subject | galaxies: photometry | en_US |
dc.subject | galaxies: high-redshift | en_US |
dc.title | The Swift Grb Host Galaxy Legacy Survey— Ii. Rest-Frame Nir Luminosity Distribution and Evidence for a Near-Solar Metallicity Threshold | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Accepted Manuscript | en_US |
dc.relation.journal | The Astrophysical Journal | en_US |
dash.depositing.author | Berger, Edo | |
dc.date.available | 2017-03-02T21:08:29Z | |
dc.identifier.doi | 10.3847/0004-637X/817/1/8 | * |
dash.authorsordered | false | |
dash.contributor.affiliated | Berger, Edo | |