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arXiv 0803.1655astro-ph
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伽马射线暴脉冲的延迟、亮度和持续时间之间的相关性

Correlations Between Lag, Luminosity, and Duration in Gamma-ray Burst Pulses

Jon Hakkila, Timothy W. Giblin, Jay P. Norris, P. Chris Fragile, Jerry T. Bonnell

摘要:

本文导出了一个新的伽马射线暴(GRB)脉冲峰值滞后与峰值亮度的关系。我们最终证明,伽玛射线暴的光谱滞后脉冲,而不是突发属性,并显示如何从CCF测量的突发属性确定的滞后与光度的关系基本上只是一个粗略的衡量这个新衍生的关系为个人脉冲。我们进一步表明,大多数GRB脉冲都具有相关特性:短滞后脉冲的持续时间更短,更明亮,并且在爆发中比长滞后脉冲更硬。我们还发现了一个新的脉冲宽度与脉冲峰值亮度的关系,并指出,长滞后脉冲往往先于短滞后脉冲。虽然大多数脉冲行为是支持内部冲击(包括长滞后脉冲),我们确定了一些脉冲形状,可能会导致外部冲击。

英文摘要:

We derive a new peak lag vs. peak luminosity relation in gamma-ray burst (GRB) pulses. We demonstrate conclusively that GRB spectral lags are pulse rather than burst properties and show how the lag vs. luminosity relation determined from CCF measurements of burst properties is essentially just a rough measure of this newly derived relation for individual pulses. We further show that most GRB pulses have correlated properties: short-lag pulses have shorter durations, are more luminous, and are harder within a burst than long-lag pulses. We also uncover a new pulse duration vs. pulse peak luminosity relation, and indicate that long-lag pulses often precede short-lag pulses. Although most pulse behaviors are supportive of internal shocks (including long-lag pulses), we identify some pulse shapes that could result from external shocks.

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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