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arXiv 1201.4181astro-ph.HE
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GRB 091127的宽带研究:一个高红移的亚高能爆发?

Broadband study of GRB 091127: a sub-energetic burst at higher redshift?

E. Troja, T. Sakamoto, C. Guidorzi, J. P. Norris, A. Panaitescu, S. Kobayashi, N. Omodei, J. C. Brown, D. N. Burrows, P. A. Evans, N. Gehrels, F. E. Marshall, N… 展开作者

E. Troja, T. Sakamoto, C. Guidorzi, J. P. Norris, A. Panaitescu, S. Kobayashi, N. Omodei, J. C. Brown, D. N. Burrows, P. A. Evans, N. Gehrels, F. E. Marshall, N. Mawson, A. Melandri, C. G. Mundell, S. R. Oates, V. Pal'shin, R. D. Preece, J. L. Racusin, I. A. Steele, N. R. Tanvir, V. Vasileiou, C. Wilson-Hodge, K. Yamaoka

摘要:

GRB 091127是雨燕探测到的一个明亮的伽马射线暴,红移z = 0.49,与SN 2009 nz有关。本文给出了GRB瞬发和余辉辐射的宽带分析,并在GRB/SN协的背景下研究了它的高能性质。虽然瞬发辐射的高光度和标准余辉行为是宇宙学长伽玛暴的典型特征,但它的低能量释放,软光谱和不寻常的光谱滞后将这种伽玛暴与亚高能爆发联系起来。我们讨论了这种爆发中高能辐射的抑制,并研究了这种行为是否与爆炸的亚能性质有关。

英文摘要:

GRB 091127 is a bright gamma-ray burst (GRB) detected by Swift at a redshift z=0.49 and associated with SN 2009nz. We present the broadband analysis of the GRB prompt and afterglow emission and study its high-energy properties in the context of the GRB/SN association. While the high luminosity of the prompt emission and standard afterglow behavior are typical of cosmological long GRBs, its low energy release, soft spectrum and unusual spectral lag connect this GRB to the class of sub-energetic bursts. We discuss the suppression of high-energy emission in this burst, and investigate whether this behavior could be connected with the sub-energetic nature of the explosion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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