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The bright optical flash from GRB 060117
- Source :
- Astronomy and Astrophysics; August 2006, Vol. 454 Issue: 3 pL119-L122, 4p
- Publication Year :
- 2006
-
Abstract
- We present a discovery and observation of an extraordinarily bright prompt optical emission of the GRB 060117 obtained by a wide-field camera atop the robotic telescope FRAM of the Pierre Auger Observatory from 2 to 10 min after the GRB. We found rapid average temporal flux decay of $\alpha = -1.7 \pm 0.1$and a peak brightness $R = 10.1$mag. Later observations by other instruments set a strong limit on the optical and radio transient fluxes, unveiling an unexpectedly rapid further decay. We present an interpretation featuring a relatively steep electron-distribution parameter $p \simeq 3.0$and providing a straightforward solution for the overall fast decay of this optical transient as a transition between reverse and forward shock.
Details
- Language :
- English
- ISSN :
- 00046361 and 14320746
- Volume :
- 454
- Issue :
- 3
- Database :
- Supplemental Index
- Journal :
- Astronomy and Astrophysics
- Publication Type :
- Periodical
- Accession number :
- ejs53176550
- Full Text :
- https://doi.org/10.1051/0004-6361:20065092