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arXiv 0809.2151astro-ph
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伽马射线暴中的耀斑(II)

Flares in Gamma Ray Bursts (II)

G. Chincarini, R. Margutti, J. Mao, F. Pasotti, C. Guidorzi, S. Covino, P. D'avanzo

摘要:

我们说明了一些初步的结果与一个新的样本耀斑和一个新的分析。在这些会议录中,我们主要处理与耀斑能量有关的分析,并描述正在进行的测量平均耀斑光度曲线的工作。我们在GRB 050904和GRB 050724中简要讨论与本工作相关的事项。特别地,我们测量了GRB 050904对耀斑的贡献,并对GRB 050724的衰变早期XRT光变曲线给出了新的解释。我们简要地说明了第一个证据,即早期衰变是由宽度/T峰值< 1的事件的后续发射给出的,并且这些事件的总能量大于在即时发射尖峰期间发射的能量,这实际上表明,不仅中心引擎在第一尖峰的数百秒之后仍然是活跃的,而且这仍然可能是即时发射的一部分。

英文摘要:

We illustrate some of the preliminary results obtained with a new sample of flares and a new analysis. In these proceedings we deal mainly with the analysis related to the flare energy and describe the work in progress to measure the average flare luminosity curve. We discuss in brief GRB050904 and GRB050724 for matters relevant to this work. In particular we measure the contribution given to the flares by GRB050904 and give a new interpretation for the decaying early XRT light curve of GRB050724. We briefly illustrate the first evidence that the early decay is given by the subsequent emission of events with Width/TPeak < 1 and the total energy of these events is larger than the energy emitted during the prompt emission spike showing, indeed, that not only the central engine may still be active after hundreds of seconds of the first spike but that this may still be part of the prompt emission.

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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