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Searching for galactic sources in the Swift GRBcatalog

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 originthanks to the isotropic distribution observed by BATSE and the redshifts observed in someof their optical or infrared counterparts. Nevertheless, there have been a few cases thatupon further examination have turned out to be of galactic origin. Several of thesegalactic sources have presented a Fast Rise, Exponential Decay structure which leads us tobelieve that there could be an underlying correlation. In this work we do severalstatistical analyses to determine the degree of contamination by galactic sources thatcertain subsample of known FREDs have. And find that certain subsamples have a mostprobable 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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