Open AccessDistribution of compact object mergers around galaxies
Author(s) -
Bulik Tomasz,
Belczyński Krzysztof,
Zbijewski Wojciech
Publication year - 1999
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1999.02878.x
Subject(s) - physics , astrophysics , galaxy , merge (version control) , astronomy , supernova , binary number , compact star , gamma ray burst , galaxy merger , population , gravitational wave , elliptical galaxy , neutron star , mathematics , demography , arithmetic , sociology , computer science , information retrieval
Compact object mergers are one of the currently favoured models for the origin of gamma‐ray bursts (GRBs). The discovery of optical afterglows and identification of the nearest, presumably host, galaxies allow the analysis of the distribution of burst sites with respect to these galaxies. Using a model of stellar binary evolution we synthesize a population of compact binary systems which merge within the Hubble time. We include the kicks in the supernovae explosions and calculate orbits of these binaries in galactic gravitational potentials. We present the resulting distribution of merger sites and discuss the results in the framework of the observed GRB afterglows.