Gamma-Ray Burst Luminosity Functions Based on Luminosity Criteria
| dc.creator | Schmidt, Maarten | |
| dc.date | 2003-01-15 | |
| dc.date.accessioned | 2026-07-07T02:07:11Z | |
| dc.date.available | 2026-07-07T02:07:11Z | |
| dc.description | We review five studies of the gamma-ray burst (GRB) luminosity function that are based on one or more of the proposed luminosity criteria, i.e., variability, spectral lag and spectral hardness. A comparison between the resulting luminosity functions at redshift zero shows considerable divergence. We derive for each of the luminosity functions the expected source counts and the Euclidean value of <V/Vmax>. The source counts exhibit large differences from the observed counts. In most cases the value of <V/Vmax> differs substantially from the observed value of 0.34 for BATSE-based samples, with offsets ranging from 6-24 sigmas. Given that the value of <V/Vmax> is well established and that it is a cosmological distance indicator, we recommend that any study of the GRB luminosity function take its value into account. | |
| dc.description | 4 pages, 3 figures, contribution for Rome 2002 GRB Workshop | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0301277 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0301277 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/5614 | |
| dc.subject | Astrophysics | |
| dc.title | Gamma-Ray Burst Luminosity Functions Based on Luminosity Criteria | |
| dc.type | text |