X-RAY OUTBURSTS OF LOW-MASS X-RAY BINARY TRANSIENTS OBSERVED IN THE RXTE ERA

	X-RAY OUTBURSTS OF LOW-MASS X-RAY BINARY TRANSIENTS OBSERVED IN THE RXTE ERA
	Yan, Zhen; Yu, Wenfei
刊名	ASTROPHYSICAL JOURNAL
	2015-06-01
卷号	805 期号:2 页码:1
关键词	accretion black hole physics X-rays: binaries accretion disks
英文摘要	We have performed a statistical study of the properties of 110 bright X-ray outbursts in 36 low-mass X-ray binary transients (LMXBTs) seen with the All-Sky Monitor (2-12 keV) on board the Rossi X-ray Timing Explorer (RXTE). in 1996-2011. We have measured a number of outburst properties, including peak X-ray luminosity, rate. of. change of luminosity on a. daily timescale, e-folding rise and decay timescales, outburst duration, and total radiated energy. We found that. the average properties, such as peak X-ray luminosity, rise and decay timescales, outburst duration, and total radiated energy of black hole LMXBTs, are at least two times larger than those of neutron star LMXBTs, implying that the measurements of these properties may provide preliminary clues to the nature of the compact object of a newly discovered LMXBT. We also found that the outburst peak X-ray luminosity is correlated with the rate. of. change of X-ray luminosity in both the rise and decay phases, which is consistent with our previous studies. Positive correlations between total radiated energy and peak X-ray luminosity, and between total radiated energy and the. e-folding. rise or decay timescale, are also found. in the outbursts. These correlations suggest that the mass stored in the disk before an outburst is the primary initial condition that sets up the outburst properties seen later. We also found that the outbursts of two transient stellar-mass ultraluminous X-ray sources in M31 also roughly follow the correlations, which indicate that the same outburst mechanism works for the brighter outbursts of these two sources in M31 that reached the Eddington luminosity.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	BLACK-HOLE CANDIDATE ; SHORTEST ORBITAL PERIOD ; DISC INSTABILITY MODEL ; NEUTRON-STAR ; LIGHT CURVES ; AQUILA X-1 ; XMM-NEWTON ; STANDARD CANDLES ; TIMING-EXPLORER ; GRO J1744-28
收录类别	SCI
语种	英语
WOS记录号	WOS:000356715400002
公开日期	2015-08-18
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18354]
专题	上海天文台_星系宇宙学重点实验室
作者单位	Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Yan, Zhen,Yu, Wenfei. X-RAY OUTBURSTS OF LOW-MASS X-RAY BINARY TRANSIENTS OBSERVED IN THE RXTE ERA[J]. ASTROPHYSICAL JOURNAL,2015,805(2):1.
APA	Yan, Zhen,&Yu, Wenfei.(2015).X-RAY OUTBURSTS OF LOW-MASS X-RAY BINARY TRANSIENTS OBSERVED IN THE RXTE ERA.ASTROPHYSICAL JOURNAL,805(2),1.
MLA	Yan, Zhen,et al."X-RAY OUTBURSTS OF LOW-MASS X-RAY BINARY TRANSIENTS OBSERVED IN THE RXTE ERA".ASTROPHYSICAL JOURNAL 805.2(2015):1.