Energy Dependence of Profile Width in Short Gamma-Ray Bursts
YANG Yu-xuan1,2, CHE Hai-hong3,2, WU Mei2, CAO Sheng-lin1
1Department of Astronomy, Beijing Normal University, Beijing 100875
2High Energy Astrophysics Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
3Shaanxi Astronomical Observatory, Chinese Academy of Sciences, Lintong 710600
Energy Dependence of Profile Width in Short Gamma-Ray Bursts
YANG Yu-xuan1,2;CHE Hai-hong3,2;WU Mei2;CAO Sheng-lin1
1Department of Astronomy, Beijing Normal University, Beijing 100875
2High Energy Astrophysics Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
3Shaanxi Astronomical Observatory, Chinese Academy of Sciences, Lintong 710600
Abstract： Using the high time-resolution and 64ms resolution data of the burst and transient source experiment, we performed an autocorrelation analysis of the energy dependence of burst pulse width in short gamma-ray bursts. A method free from potential cosmological effects has been proposed. This allows us to use a sample with a size comparable to that used for long and bright bursts. Our result shows that the profiles of short bursts exhibit a very good power-law between profile width and photon energy, with an index ~ -0.3. This result is consistent with a united origin of the bimodal distribution.
YANG Yu-xuan;CHE Hai-hong;WU Mei;CAO Sheng-lin. Energy Dependence of Profile Width in Short Gamma-Ray Bursts[J]. 中国物理快报, 1997, 14(10): 797-800.
YANG Yu-xuan, CHE Hai-hong, WU Mei, CAO Sheng-lin. Energy Dependence of Profile Width in Short Gamma-Ray Bursts. Chin. Phys. Lett., 1997, 14(10): 797-800.
1997, Vol. 14 
