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Possible mass and angular momentum loss in ALGOL-TYPE binaries. III. TU Cancri, FZ Delphini, AY Geminorum, VZ Leonis, FH Orionis, IU Persei, XZ Persei, and BE Vulpeculae
Qian SB(钱声帮)1,2; Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationASTRONOMICAL JOURNAL
2001-03
Volume121Issue:3Pages:1614-1622
DOI10.1086/319404
Contribution Rank第1完成单位
Indexed BySCI
KeywordBinaries : Close Stars : Mass Loss
AbstractOrbital period variations of eight Algol-type binaries, TU Cnc, FZ Del, AY Gem, VZ Leo, FH Ori, IU Per, XZ Per, and BE Vul, are studied based on the analysis of the O-C observations. It is discovered that the periods of three systems, TU Cnc, FH Ori, and IU Per, show secular decrease. For AY Gem and XZ Per, the orbital periods can be described by a sudden decrease or by two sudden changes superposed on a secular decrease. Weak evidence also shows that the orbital periods of the other three systems, FZ Del, VZ Leo, and BE Vul, are decreasing. As in other systems proposed by Qian, the decrease in the orbital periods of these systems, combined with their semidetached configurations, suggests that they may be undergoing secular mass and angular momentum loss due to magnetic braking. The irregular period jumps superposed on the secular decrease (e.g., in AY Gem, FH Ori, XZ Per, and BE Vul) can be explained by variable magnetic coupling and gravity coupling between the two components. However, the present secular period decrease of these systems may be part of a long-period periodic change (as in TT Del), which needs further investigation.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6256
URL查看原文
Archive Date2001-06-27
WOS IDWOS:000167582800034
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordORBITAL PERIOD ; STARS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5750
Collection双星与变星研究组
Corresponding AuthorQian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China
2.National Astronomical Observatories and United Laboratory of Optical Astronomy, Chinese Academy of Sciences
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qian SB,Qian, SB . Possible mass and angular momentum loss in ALGOL-TYPE binaries. III. TU Cancri, FZ Delphini, AY Geminorum, VZ Leonis, FH Orionis, IU Persei, XZ Persei, and BE Vulpeculae[J]. ASTRONOMICAL JOURNAL,2001,121(3):1614-1622.
APA Qian SB,&Qian, SB .(2001).Possible mass and angular momentum loss in ALGOL-TYPE binaries. III. TU Cancri, FZ Delphini, AY Geminorum, VZ Leonis, FH Orionis, IU Persei, XZ Persei, and BE Vulpeculae.ASTRONOMICAL JOURNAL,121(3),1614-1622.
MLA Qian SB,et al."Possible mass and angular momentum loss in ALGOL-TYPE binaries. III. TU Cancri, FZ Delphini, AY Geminorum, VZ Leonis, FH Orionis, IU Persei, XZ Persei, and BE Vulpeculae".ASTRONOMICAL JOURNAL 121.3(2001):1614-1622.
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