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arXiv 1002.2863astro-ph.HE
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亮短GRB 090510的费米和斯威夫特观测

Fermi and Swift observations of the bright short GRB 090510

V. Pelassa, M. Ohno

摘要:

明亮的短硬GRB 090510被斯威夫特和费米望远镜观测到。费米对瞬发辐射的研究揭示了一个额外的高能光谱分量,这是短伽玛射线暴喷流中体洛伦兹因子的最大下限,并对线性洛仑兹不变性破坏模型提出了最严格的约束。这两台望远镜的快速重新定位和跟踪使得第一次对伽马射线暴余辉的多波长研究从光学范围到几个GeV。这种长寿命的发射已被研究的框架内的内部冲击和外部冲击模型。

英文摘要:

The bright short-hard GRB 090510 was observed by both Swift and Fermi telescopes. The study of the prompt emission by Fermi revealed an additional high-energy spectral component, the largest lower limit ever on the bulk Lorentz factor in a short GRB jet, and brought the most stringent constraint ever on linear Lorentz invariance violation models. The fast repoint and follow-up by both telescopes allowed the first multiwavelength study of a GRB afterglow from optical range to several GeV. This long-lived emission has been studied in the framework of the internal shock and external shock models.

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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