| Issue |
EAS Publications Series
Volume 61, 2013
Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe
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|---|---|---|
| Page(s) | 65 - 70 | |
| Section | Chapter II: Prompt Emission-I Observations | |
| DOI | https://doi.org/10.1051/eas/1361008 | |
| Published online | 22 July 2013 | |
A.J. Castro-Tirado, J.Gorosabel and I.H. Park (eds)
EAS Publications Series, 61 (2013) 65-70
Searching for galactic sources in the Swift GRB catalog
1 Instituto de Astrofísica de Andalucía
(IAA-CSIC), Granada,
Spain
2 Unidad Asociada Grupo Ciencia
Planetarias UPV/EHU-IAA/CSIC, Universidad del País Vasco UPV/EHU,
Bilbao,
Spain
3 Ikerbasque, Basque Foundation for
Science, Bilbao,
Spain
4 Universidad de Jaén,
Campus Las
Lagunillas, Jaén,
Spain
5 Nikolaev National University,
Nikolaev,
Ukraine
6 Eötvös University,
Budapest,
Hungary
7 Bolyai Military University,
Budapest,
Hungary
Since the early 90s Gamma Ray Bursts have been accepted to be of extra-galactic origin thanks to the isotropic distribution observed by BATSE and the redshifts observed in some of their optical or infrared counterparts. Nevertheless, there have been a few cases that upon further examination have turned out to be of galactic origin. Several of these galactic sources have presented a Fast Rise, Exponential Decay structure which leads us to believe that there could be an underlying correlation. In this work we do several statistical analyses to determine the degree of contamination by galactic sources that certain subsample of known FREDs have. And find that certain subsamples have a most probable contamination between 27% and 34%.
© EAS, EDP Sciences 2013