Correlation between pulse-width and peak luminosity of single-pulse long gamma-ray bursts

Correlation between pulse-width and peak luminosity of single-pulse long gamma-ray bursts
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单脉冲长伽马射线暴的脉冲宽度与峰值光度之间的相关性

DOI:
10.1007/s11433-010-0026-0
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发表时间:
2010-05
影响因子:
6.4
通讯作者:
Liang EnWei
Liang EnWei
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Deng JiaGan;Liang EnWei

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通过对21个单脉冲GRB的红移测量和65个单脉冲GRB的亮度-光谱滞后关系估计的伪红移测量,我们发现GRB脉冲的峰值亮度与脉冲宽度呈反相关,说明在γ射线波段,长脉冲的GRB往往较暗。在内部冲击的情况下可以获得反相关性。
With a sample of 21 single-pulse GRBs with redshift measurement and a sample of 65 single-pulse GRBs with pseudo redshift estimated by the luminosity-spectral lag relation, we show that the peak luminosities of GRB pulses are anti-correlated with pulse width, indicating that longer-pulses tend to be dimmer in the gamma-ray band. The anti-correlation is accessible with an internal shock scenario.
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