GRB 091127 的宽带研究:一个处于更高红移的次能爆?
高能天体物理现象
2015-06-03 v1
摘要
GRB 091127 是一个明亮的伽马射线暴(GRB),由 Swift 卫星在红移 z=0.49 处探测到,并与超新星 SN 2009nz 相关联。我们展示了该 GRB 瞬时辐射和余辉的宽带分析,并在 GRB/超新星关联的背景下研究了其高能特性。虽然其瞬时辐射的高光度和标准的余辉行为是宇宙学长暴的典型特征,但其低能量释放、软谱以及异常的光谱滞后将该 GRB 与次能爆类别联系起来。我们讨论了该爆中高能辐射的抑制现象,并调查这种行为是否可能与爆炸的次能性质有关。
引用
@article{arxiv.1201.4181,
title = {Broadband study of GRB 091127: a sub-energetic burst at higher redshift?},
author = {E. Troja and T. Sakamoto and C. Guidorzi and J. P. Norris and A. Panaitescu and S. Kobayashi and N. Omodei and J. C. Brown and D. N. Burrows and P. A. Evans and N. Gehrels and F. E. Marshall and N. Mawson and A. Melandri and C. G. Mundell and S. R. Oates and V. Pal'shin and R. D. Preece and J. L. Racusin and I. A. Steele and N. R. Tanvir and V. Vasileiou and C. Wilson-Hodge and K. Yamaoka},
journal= {arXiv preprint arXiv:1201.4181},
year = {2015}
}
备注
12 pages, 7 figures, submitted to ApJ