Scale-invariance in soft gamma repeaters
Scale-invariance in soft gamma repeaters
复制标题
软伽马中继器中的尺度不变性
DOI：
10.1088/1674-1137/41/6/065104
复制
发表时间：
2017
影响因子：
3.6
通讯作者：
Wang Ping
中科院分区：
文献类型：
--
作者：
Chang Zhe;Lin Hai-Nan;Sang Yu;Wang Ping
The statistical properties of the soft gamma repeater SGR J1550--5418 are investigated carefully. We find that the cumulative distributions of fluence, peak flux and duration can be well fitted by a bent power law, while the cumulative distribution of waiting time follows a simple power law. In particular, the probability density functions of fluctuations of fluence, peak flux, and duration have a sharp peak and fat tails, which can be well fitted by a $q$-Gaussian function. The $q$ values keep approximately steady for different scale intervals, indicating a scale-invariant structure of soft gamma repeaters. Those results support that the origin of soft gamma repeaters is crustquakes of neutron stars with extremely strong magnetic fields.
