Correlation Time Scales of the X-ray Flux in Low Mass X-ray Binaries
Recent studies of several soft X-ray transients (SXTs) show that the X-ray flux at which the low/hard (LH)-to-high/soft (HS) state transition occurs in the rising phase of an outburst is nearly linearly correlated with the peak flux of the following (HS) state. By analyzing the data of the ASM on board the RXTE, we show that the flux correlation holds even after an outburst or flare reaches its flux peak. In GX 339-4, Aq1 X-1 and the quasi transient 4U 1705-44, the flux of the LH-to-HS state transition and the flux of the following HS state are positively correlated up to a time scale of 250 days, 40 days and 50 days following the corresponding LH-to-HS state transition, respectively. We discuss the implications of our study in the framework of a two- flow accretion geometry.
Accretion accretion disks--black hole physics—star individual (Aquila X-1, GX 339-4, 4U 1705-44)-stars neutron
Y. X. Wu W. Yu T. P. Li
Department of Engineering Physics & Center for Astrophysics, Tsinghua University, Beijing, China Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai, China Department of Engineering Physics, Department of Physics & Center for Astrophysics, Tsinghua Univers
国际会议
紧凑型物体的天体物理学国际会议(International Conference on Astrophysics of Compact Objects)
安徽黄山
英文
331-333
2007-07-01(万方平台首次上网日期,不代表论文的发表时间)