Correlations between Lag, Luminosity, and Duration in Gamma-Ray Burst Pulses
Correlations between Lag, Luminosity, and Duration in Gamma-Ray Burst Pulses
复制标题
DOI：
10.1086/588094
复制
发表时间：
2008-03
期刊：
影响因子：
--
通讯作者：
J. Hakkila;T. Giblin;J. Norris;P. C. Fragile;J. Bonnell
中科院分区：
文献类型：
--
作者：
J. Hakkila;T. Giblin;J. Norris;P. C. Fragile;J. Bonnell
本文导出了一个新的γ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，大多数伽玛射线暴脉冲具有相关的属性：短滞后脉冲具有较短的持续时间，更明亮，更难在一个突发比长滞后脉冲。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。
We derive a new peak lag versus 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 versus 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 versus 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.