The bright optical flash from GRB 060117

被引：39

作者：

Jelinek, M.

Prouza, M.

Kubanek, P.

Hudec, R.

Nekola, M.

Ridky, J.

Grygar, J.

Bohacova, M.

Castro-Tirado, A. J.

Gorosabel, J.

Hrabovsky, M.

Mandat, D.

Nosek, D.

Nozka, L.

Palatka, M.

Pandey, S. B.

Pech, M.

Schovanek, P.

Smida, R.

Travnicek, P.

de Ugarte Postigo, A.

Vitek, S.

机构：

[1] CSIC, IAA, Granada 18080, Spain

[2] Fyzikalni Ustav AV CR, Prague 18221 8, Czech Republic

[3] Astron Ustav AV CR, Ondrejov 25165, Czech Republic

[4] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland

[5] MFF UK Praha, Ustav Casticove Jaderne Fyziky, Prague 18000 8, Czech Republic

来源：

ASTRONOMY & ASTROPHYSICS | 2006年 / 454卷 / 03期

关键词：

gamma-rays; bursts;

D O I：

10.1051/0004-6361:20065092

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a discovery and observation of an extraordinarily bright prompt optical emission of the GRB060117 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 +/- 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 similar or equal to 3.0 and providing a straightforward solution for the overall fast decay of this optical transient as a transition between reverse and forward shock.

引用

页码：L119 / L122

页数：4

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