BeppoSAX对GRB980425的探测和后续观测
天体物理学
2009-10-31 v2
摘要
我们展示了GRB980425的BeppoSAX GRBM和WFC光变曲线，以及1998年4月、5月和11月进行的NFI后续观测数据。第一次NFI观测在GRB8'半径误差范围内探测到了一个与超新星SN 1998bw位置一致的X射线源，该超新星在GRB980425爆发后一天内爆炸，以及一个较暗的X射线源，其位置与超新星不一致。前者在随后的NFI指向观测中被探测到，并在六个月内衰减了两倍。如果它与SN 1998bw相关，这是首次探测到I型超新星发出的硬X射线辐射。后者仅表现出边际显著的变异性。基于这些数据，无法将任一源确定为GRB对应体的可靠候选。
引用
@article{arxiv.astro-ph/9903113,
title = {BeppoSAX Detection and Follow-up of GRB980425},
author = {E. Pian and L. Amati and L. A. Antonelli and R. C. Butler and E. Costa and G. Cusumano and J. Danziger and M. Feroci and F. Fiore and F. Frontera and P. Giommi and N. Masetti and J. M. Muller and T. Oosterbroek and A. Owens and E. Palazzi and L. Piro and A. Castro-Tirado and A. Coletta and D. Dal Fiume and S. Del Sordo and J. Heise and L. Nicastro and M. Orlandini and A. Parmar and P. Soffitta and V. Torroni and J. J. M. in 't Zand},
journal= {arXiv preprint arXiv:astro-ph/9903113},
year = {2009}
}
备注
2 pages, 1 PostScript figure, submitted to A&AS, Proc. of the Conference "Gamma-Ray Bursts in the Afterglow Era", held in Rome, 1998 November 3-6. Results concerning 'Source 2' have been updated