Timescale Analysis of Spectral Lags

Timescale Analysis of Spectral Lags

A technique for timescale analysis of spectral lags performed directly in the time domain is developed. Simulation studies are made to compare the time domain technique with the Fourier frequency analysis for spectral time lags. The time domain technique is applied to studying rapid variabilities of X-ray binaries and γ-ray bursts. The results indicate that in comparison with the Fourier analysis the timescale analysis technique is more powerful for the study of spectral lags in rapid variabilities on short time scales and short duration flaring phenomena.

作 者： Ti-Pei Li Jin-Lu Qu HUA Feng Li-Ming Song Guo-Qiang Ding Li Chen   作者单位： Ti-Pei Li(Department of Physics & Center for Astrophysics, Tsinghua University, Beijing,100084;Particle Astrophysics Lab., Institute of High Energy Physics, Chinese Academy of Sciences;Department of Engineering Physics & Center for Astrophysics, Tsinghua University)

Jin-Lu Qu,Li-Ming Song,Guo-Qiang Ding(Particle Astrophysics Lab., Institute of High Energy Physics, Chinese Academy of Sciences)

HUA Feng(Department of Engineering Physics & Center for Astrophysics, Tsinghua University)

Li Chen(Department of Astronomy, Beijing Normal University) 

刊 名： 天体物理学报（英文版）  ISTIC SCI 英文刊名： CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS  年，卷(期)： 2004 4(6)  分类号： P14  关键词： methods: data analysis - binaries: general - X-rays: stars - gamma rays: bursts - X-rays: bursts  

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