RXTE/ASM and Swift/BAT observations of spectral transitions in bright X-ray binaries in 2005-2010

	RXTE/ASM and Swift/BAT observations of spectral transitions in bright X-ray binaries in 2005-2010
	Tang, Jing; Yu, Wen-Fei; Yan, Zhen
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2011-04-01
卷号	11 期号:4 页码:434-444
关键词	X-rays: binaries stars: neutron black hole physics
英文摘要	We have studied X-ray spectral state transitions that can be seen in the long-term monitoring light curves of bright X-ray binaries from the All-Sky Monitor (ASM) onboard the Rossi X-ray Timing Explorer (RXTE) and the Burst Alert Telescope (BAT) onboard Swift during a period of five years from 2005 to 2010. We have applied a program to automatically identify the hard-to-soft (H-S) spectral state transitions in the bright X-ray binaries monitored by the ASM and the BAT. In total, we identified 128 hard-to-soft transitions, of which 59 occurred after 2008. We also determined the transition fluxes and the peak fluxes of the following soft states, updated the measurements of the luminosity corresponding to the H-S transition and the peak luminosity of the following soft state in about 30 bright persistent and transient black hole and neutron star binaries following Yu & Yan, and found the luminosity correlation and the luminosity range of spectral transitions in data between 2008-2010 are about the same as those derived from data before 2008. This further strengthens the idea that the luminosity at which the H-S spectral transition occurs in the Galactic X-ray binaries is determined by non-stationary accretion parameters such as the rate-of-change of the mass accretion rate rather than the mass accretion rate itself. The correlation is also found to hold in data of individual sources 4U 1608-52 and 4U 1636-53.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	STELLAR BLACK-HOLE ; NEUTRON-STAR ; GLOBULAR-CLUSTER ; GRO J1655-40 ; METAL-RICH ; AQUILA X-1 ; CIR X-1 ; MASS ; TRANSIENT ; DISTANCE
收录类别	SCI
语种	英语
WOS记录号	WOS:000289611900006
公开日期	2015-01-29
内容类型	期刊论文
源URL	[http://119.78.226.72//handle/331011/15490]
专题	上海天文台_星系宇宙学重点实验室
作者单位	Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Tang, Jing,Yu, Wen-Fei,Yan, Zhen. RXTE/ASM and Swift/BAT observations of spectral transitions in bright X-ray binaries in 2005-2010[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(4):434-444.
APA	Tang, Jing,Yu, Wen-Fei,&Yan, Zhen.(2011).RXTE/ASM and Swift/BAT observations of spectral transitions in bright X-ray binaries in 2005-2010.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(4),434-444.
MLA	Tang, Jing,et al."RXTE/ASM and Swift/BAT observations of spectral transitions in bright X-ray binaries in 2005-2010".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.4(2011):434-444.