INTEGRAL 检测的 GRB 030227：首次多波段后glow观测
天体物理学
2008-11-26 v1
摘要
我们报告了INTEGRAL (GRB 030227) 在事件发生后5.3小时至约1.7天期间的多波段观测。我们报告发现一束微弱的光学后glow (OA)，该OA若不经过特殊搜索将难以被许多以前的搜索检测到，其R~23。该OA以指数衰减形式衰减，指数Alpha_R= -0.95 +/- 0.16。光谱指数Beta_opt/NIR yielded -1.25 +/- 0.14。这些数值可由在冷却 regime 中以p=2.0的相对论性火球膨胀所解释。我们还发现X射线中存在逆伽马射线散射的证据。
引用
@article{arxiv.astro-ph/0309804,
title = {GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB},
author = {A. J. Castro-Tirado and J. Gorosabel and S. Guziy and D. Reverte and J. M. Castro Cerón and A. de Ugarte Postigo and N. Tanvir and S. Mereghetti and A. Tiengo and J. Buckle and R. Sagar and S. B. Pandey and V. Mohan and N. Masetti and F. Mannucci and S. Feltzing and I. Lundstrom and H. Pedersen and C. Riess and S. Trushkin and J. Vilchez and N. Lund and S. Brandt and S. Martinez Nunez and V. Reglero and M. D. Perez-Ramirez and S. Klose and J. Greiner and J. Hjorth and L. Kaper and E. Pian and E. Palazzi and M. I. Andersen and A. Fruchter and J. P. U. Fynbo and B. L. Jensen and C. Kouveliotou and J. Rhoads and E. Rol and P. M. Vreeswijk and R. A. M. J. Wijers and E. van den Heuvel},
journal= {arXiv preprint arXiv:astro-ph/0309804},
year = {2008}
}
备注
5 pages, 5 figures, accepted for publication in A&A