黑洞候选体X射线双星Cyg X-1硬度比周期特性研究
发布时间：2018-10-22 18:31
【摘要】：利用离散傅里叶分析法,基于RXTE(Rossi X-ray Timing Explorer)/ASM(All-Sky Monitor,1.5～12 keV)观测数据,对黑洞候选体X射线双星Cyg X-1硬度比HR(5～12 keV/3～5 keV)(简写HR)的时变特性进行了分析,结果表明黑洞候选体X射线双星Cyg X-1硬度比HR存在明显的周期特性:(1)混合态(硬态+软态,本文指MJD=50087～55841期间所有的观测数据)时,HR存在T≈5.6 d、40.0 d、78.4 d、173.8 d以及400/800 d的时变周期;(2)硬态时,HR存在T≈5.6 d、33.7/67.6 d、45.3 d和165.3 d的周期特性;(3)软态时,HR出现了T≈38.5 d、48.1 d和128.3 d的周期性变化.并利用粘滞理论和Zdziarski吸积盘模型讨论了以上周期特性的物理机制.
[Abstract]:Based on the RXTE (Rossi X-ray Timing Explorer) / ASM (All-Sky Monitor,1.5~12 keV) data, the time-varying characteristics of the X-ray binary star Cyg X-1 hardness ratio HR (5 ~ 12 keV/3~5 keV) (HR) are analyzed by using discrete Fourier analysis (DFT). The results show that the hardness of the black hole candidate Cyg X-1 is more periodic than that of HR: (1) the mixed state (hard soft state), In this paper, we refer to all the observed data during MJD=50087~55841), the time varying period of T 鈮，
本文编号：2287971
[Abstract]:Based on the RXTE (Rossi X-ray Timing Explorer) / ASM (All-Sky Monitor,1.5~12 keV) data, the time-varying characteristics of the X-ray binary star Cyg X-1 hardness ratio HR (5 ~ 12 keV/3~5 keV) (HR) are analyzed by using discrete Fourier analysis (DFT). The results show that the hardness of the black hole candidate Cyg X-1 is more periodic than that of HR: (1) the mixed state (hard soft state), In this paper, we refer to all the observed data during MJD=50087~55841), the time varying period of T 鈮，
本文编号：2287971
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