Possible connection between period change and magnetic activity of the very short-period binary VZ piscium

doi:10.1002/asna.200410251

YNAO OpenIR > 双星与变星研究组

	Possible connection between period change and magnetic activity of the very short-period binary VZ piscium
	Qian SB(钱声帮)1,2 ; Soonthornthum, B 3; Xiang, FY 4; Zhu LY(朱俐颖)1,2 ; He JJ(何家佳)1,2 ; Qian, SB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊	ASTRONOMISCHE NACHRICHTEN
	2004
卷号	325 期号:9 页码:714-717
DOI	10.1002/asna.200410251
产权排序	第1完成单位
收录类别	SCI
关键词	Binaries : Eclipsing Stars : Individual (Vz Piscium) Star : Magnetic Fields
摘要	New times of light minimum of the short-period (P = 0(d).26) close binary system, VZ Psc, are presented. A period investigation of the binary star, by combining the three new eclipse times with the others collected from the literatures, shows that the variation of the period might be in an alternate way. Under the hypothesis that the variation of the orbital period is cyclic, a period of 25 years and an amplitude of 0.(d)0030 for the cyclic change are determined. If this periodic variation is caused by the presence of a third body, the mass of the third body (m(3)) should be no less than 0.081 M-circle dot. Since both components of VZ Psc are strong chromospherically active and the level of activity of the secondary component is higher than that of the primary one, the period may be more plausibly explained by cyclic magnetic activity of the less massive component.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-6337
URL	查看原文
归档日期	2004-12-28
WOS记录号	WOS:000225795500004
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	ORBITAL PERIOD ; CLOSE BINARIES ; CONTACT BINARY ; MODULATION ; DRACONIS ; VELOCITY
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5770
专题	双星与变星研究组
通讯作者	Qian, SB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, PR China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, PR China 3.Astronomy Research Unit, Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand 4.Physics Department, Xiangtan University, 411105 Xiangtan, Funan Province, PR China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Qian SB,Soonthornthum, B,Xiang, FY,et al. Possible connection between period change and magnetic activity of the very short-period binary VZ piscium[J]. ASTRONOMISCHE NACHRICHTEN,2004,325(9):714-717.
APA	Qian SB,Soonthornthum, B,Xiang, FY,Zhu LY,He JJ,&Qian, SB .(2004).Possible connection between period change and magnetic activity of the very short-period binary VZ piscium.ASTRONOMISCHE NACHRICHTEN,325(9),714-717.
MLA	Qian SB,et al."Possible connection between period change and magnetic activity of the very short-period binary VZ piscium".ASTRONOMISCHE NACHRICHTEN 325.9(2004):714-717.

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