快速衰减余辉的物理性质

Gamma-ray Bursts: 15 Years of GRB Afterglows Pub Date : 2013-11-11 DOI:10.1051/EAS/1361032

M. D. Pasquale, S. Schulze, D. A. Kann, S. Oates, Bing Zhang

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引用次数: 2

摘要

为了减少对最弱事件的选择效应，我们对Swift x射线和光学GRB余辉进行了分析。我们初步确定了GRB的重要差异，这些差异显示出相对于平均GRB的快速衰减，特别是更有能量的爆发具有更陡峭的余辉衰减趋势。对这一发现的一种解释可能是，在风环境中的爆发比在恒定密度的介质中发生的爆发平均能量更大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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PHYSICAL PROPERTIES OF RAPIDLY DECAYING AFTERGLOWS

We analyze a sample of Swift X-ray and optical GRB afterglows which were chosen so as to reduce selection effects against the weakest events. We tentatively identify important differences in GRBs that show a fast decay with respect to the average GRB, in particular a tendency for the more energetic bursts to have a steeper afterglow decline. An explanation to this finding could be bursts in a wind environment are on average more energetic than bursts occurring in a constant density medium.

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Gamma-ray Bursts: 15 Years of GRB Afterglows

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