EVIDENCE OF A MASSIVE BLACK HOLE COMPANION IN THE MASSIVE ECLIPSING BINARY V PUPPIS

	EVIDENCE OF A MASSIVE BLACK HOLE COMPANION IN THE MASSIVE ECLIPSING BINARY V PUPPIS
	Qian SB(钱声帮)1,2,3 ; Liao WP(廖文萍)1,2,3 ; Lajus, EF 4
刊名	ASTROPHYSICAL JOURNAL
	2008-11-01
卷号	687 期号:1 页码:466-470
关键词	binaries: close binaries: eclipsing black hole physics stars: evolution stars individual (V Puppis)
ISSN号	0004-637X
通讯作者	Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	Up to now, most stellar-mass black holes have been discovered in X-ray-emitting binaries, in which the black holes are formed through a common-envelope evolution. Here we give evidence for the presence of a massive black hole candidate as a tertiary companion in the massive eclipsing binary V Puppis. We found that the orbital period of this short-period binary ( P 1: 45 days) shows a periodic variation while it undergoes a long-term increase. The cyclic period oscillation can be interpreted by the light-travel time effect via the presence of a third body with a mass of no less than 10.4 M-circle dot.. However, no spectral lines of the third body were discovered, which indicates that it is a massive black hole candidate. The black hole candidate may correspond to the weak X-ray source close to V Pup, discovered by the Uhuru, Copernicus, and ROSAT satellites, produced by accreting materials from the massive binary via a stellar wind. The circumstellar matter with many heavy elements around this binary may have been formed by the supernova explosion of the progenitor of the massive black hole. All of the observations suggest that a massive black hole is orbiting the massive close binary V Pup with a period of 5.47 yr. Meanwhile, we found that the central close binary is undergoing a slow mass transfer from the secondary to the primary star on a nuclear timescale of the secondary component, revealing that the system has passed through a rapid mass transfer stage.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	HR 2875 ; STARS ; EVOLUTION ; PHOTOMETRY ; HD-167971 ; CATALOG ; SYSTEMS ; ORBITS ; GALAXY
收录类别	SCI
原文出处	http://iopscience.iop.org/0004-637X/687/1/466/
语种	英语
WOS记录号	WOS:000260370800036
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5808]
专题	云南天文台_双星与变星研究组
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences (CAS), P.O. Box 110, 650011 Kunming, China 2.United Laboratory of Optical Astronomy, CAS (ULOAC), 100012 Beijing, China 3.Graduate School of the CAS, 100012 Beijing, China 4.Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 La Plata, Buenos Aires, Argentina
推荐引用方式 GB/T 7714	Qian SB,Liao WP,Lajus, EF. EVIDENCE OF A MASSIVE BLACK HOLE COMPANION IN THE MASSIVE ECLIPSING BINARY V PUPPIS[J]. ASTROPHYSICAL JOURNAL,2008,687(1):466-470.
APA	Qian SB,Liao WP,&Lajus, EF.(2008).EVIDENCE OF A MASSIVE BLACK HOLE COMPANION IN THE MASSIVE ECLIPSING BINARY V PUPPIS.ASTROPHYSICAL JOURNAL,687(1),466-470.
MLA	Qian SB,et al."EVIDENCE OF A MASSIVE BLACK HOLE COMPANION IN THE MASSIVE ECLIPSING BINARY V PUPPIS".ASTROPHYSICAL JOURNAL 687.1(2008):466-470.