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 m...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.展开更多
By using the first,second and third electronic burst and transcient source experiment catalogs,a joint analysis of spatial and temporal distributions and hardness ratios of gamma-ray bursts is performed.Turning point ...By using the first,second and third electronic burst and transcient source experiment catalogs,a joint analysis of spatial and temporal distributions and hardness ratios of gamma-ray bursts is performed.Turning point features at C_(max)/C_(min) ~6 are found.This probably indicates the existence of two components of burster population which have distinct spatial distributions.展开更多
文摘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.
文摘By using the first,second and third electronic burst and transcient source experiment catalogs,a joint analysis of spatial and temporal distributions and hardness ratios of gamma-ray bursts is performed.Turning point features at C_(max)/C_(min) ~6 are found.This probably indicates the existence of two components of burster population which have distinct spatial distributions.
