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Searching for galactic sources in the Swift GRB catalog

Published online by Cambridge University Press:  22 July 2013

J.C. Tello ,
A.J. Castro-Tirado ,
J. Gorosabel ,
D. Pérez-Ramírez ,
S. Guziy ,
R. Sánchez ,
M. Jelínek ,
P. Veres  and
Z. Bagoly
J.C. Tello
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain
A.J. Castro-Tirado
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain
J. Gorosabel
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain Unidad Asociada Grupo Ciencia Planetarias UPV/EHU-IAA/CSIC, Universidad del País Vasco UPV/EHU, Bilbao, Spain Ikerbasque, Basque Foundation for Science, Bilbao, Spain
D. Pérez-Ramírez
Affiliation:
Universidad de Jaén, Campus Las Lagunillas, Jaén, Spain
S. Guziy
Affiliation:
Nikolaev National University, Nikolaev, Ukraine
R. Sánchez
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain
M. Jelínek
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain
P. Veres
Affiliation:
Eötvös University, Budapest, Hungary Bolyai Military University, Budapest, Hungary
Z. Bagoly
Affiliation:
Eötvös University, Budapest, Hungary
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Abstract

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%.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 61: Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe , 2013 , pp. 65 - 70
Copyright
© EAS, EDP Sciences 2013

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