2014/11/27 by A. Baldeschi, C. Guidorzi
Physics and Astronomy · #Astronomy and Astrophysical Research #Exponential function #Fraction (chemistry) #Gamma-ray burst #Gamma-ray bursts and supernovae #Interval (graph theory) #Process (computing) #SIGNAL (programming language) #Sequence (biology) #Space Science and Extraterrestrial Life #Stochastic process #astro-ph.HE
paper · pdf · doi:10.1051/0004-6361/201425264
4 pages, 3 figures, accepted in A&A
openalex publication_date 2014/11/27 · arxiv created 2014/12/01 · arxiv updated 2014/12/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Context. A sizeable fraction of gamma-ray burst (GRB) time profiles consist of a temporal sequence of pulses. The nature of this stochastic process carries information on how GRB inner engines work. The so-called interpulse time defines the interval between adjacent pulses, excluding the long quiescence periods during which the signal drops to the background level. It was found by many authors in the past that interpulse times are lognormally distributed, at variance with the exponential case that is expected for a memoryless process.