Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts

DENG Jia-gan; HUANG Ren-tang

Astronomical Research and Technology > 2007 > 4(1): 1-10.

DENG Jia-gan, HUANG Ren-tang. Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts[J]. Astronomical Research and Technology, 2007, 4(1): 1-10.

Citation:

DENG Jia-gan, HUANG Ren-tang. Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts[J]. Astronomical Research and Technology, 2007, 4(1): 1-10.

Citation:

DENG Jia-gan, HUANG Ren-tang. Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts[J]. Astronomical Research and Technology, 2007, 4(1): 1-10.

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Revisite of the Energy Dependence on the Pulse Width in Gamma-Ray Bursts

DENG Jia-gan^1,2,
HUANG Ren-tang³

1.
Physics Science and Technology College, Guangxi University, Nanning 530004, China
2.
National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
3.
Physics Department, Guangxi National Institute, Nanning 530012, China

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Received Date: February 08, 2006
Revised Date: March 07, 2006
Published Date: January 14, 2007

Graphical Abstract

Abstract

Abstract

The relationship between the pulse FWHM (full-widths at half maximum) and the energy of gammaray bursts (GRBs)is explored based on the observed data from BATSE data base (http//cossc gsfc nasa gov/atse/).Based on a sample of 64 FRED (fast rise and exponential decay)pulse bursts better fitted with the KRL model (refer equation (22)in [1]), it is found that 63, out of the 64 sources, belong to either the platformpower-law-platform feature class or the peaked feature group.The classifications for 64 sources could be sorted into five models in detail a)a power law range could be observed in 34 sources;b)a lower band platform could be observed or suspected in 18 bursts;c)a higher band platform could be observed or suspected in 7 sources;d)a peaked feature could be observed or suspected in 4 GRBs;e)the other model from the four types above could be observed in 1 sources.The result suggests that there exists a power law relationship between the pulse FWHM of GRBs and the energy.And the result confirms the points from Qin et al (2005)[2] that the relationship is due to the Doppler effect of fireballs.
- gamma-ray bursts,
- light curve,
- observational data statistical

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