A Study of Compact Object Mergers as Short Gamma-ray Burst Progenitors

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dc.creatorBelczynski, Krzysztof
dc.creatorPerna, Rosalba
dc.creatorBulik, Tomasz
dc.creatorKalogera, Vassiliki
dc.creatorIvanova, Natalia
dc.creatorLamb, Donald Q.
dc.date2006-01-19
dc.date2006-05-27
dc.date.accessioned2026-07-07T10:43:34Z
dc.date.available2026-07-07T10:43:34Z
dc.descriptionWe present a theoretical study of double compact objects as potential short/hard gamma-ray burst (GRB) progenitors. An updated population synthesis code StarTrack is used to calculate properties of double neutron stars and black-hole neutron star binaries. We obtain their formation rates, estimate merger times and finally predict their most likely merger locations and afterglow properties for different types of host galaxies. Our results serve for a direct comparison with the recent HETE-II and SWIFT observations of several short bursts, for which afterglows and host galaxies were detected. We also discuss the possible constraints these observations put on the evolutionary models of double compact object formation. We emphasize that our double compact object models can successfully reproduce at the same time short GRBs within both young, star-forming galaxies (e.g., GRB 050709 and GRB 051221A), as well as within old, elliptical hosts (e.g., GRB 050724 and probably GRB 050509B)
dc.descriptionApJ, in press
dc.identifierhttps://arxiv.org/abs/astro-ph/0601458
dc.identifierhttp://arxiv.org/abs/astro-ph/0601458
dc.identifierAstrophys.J.648:1110-1116,2006
dc.identifierdoi:10.1086/505169
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182283
dc.subjectAstrophysics
dc.titleA Study of Compact Object Mergers as Short Gamma-ray Burst Progenitors
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