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The Period Corrections of Two W UMa-type Binaries: V520 Cas and V680 Per
Wang JJ(王晶晶); Qian SB(钱声帮); Wang, JJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
会议录名称Astronomical Society of the Pacific (ASP) Conference Series - NINTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS
2012
卷号451
页码159-162
产权排序第1完成单位
收录类别CPCI
会议名称9th Pacific Rim Conference on Stellar Astrophysics
会议日期2011-04-14
会议地点Lijiang, PEOPLES R CHINA
摘要All available CCD light minimum times of two W UMa-type eclipsing binaries V520 Cas and V680 Per were collected from the literature. With the analysis of the O-C diagram, it is found that the values of their periods are inaccurate. We revised the orbital periods and obtained the new ephemeris. After that, the O-C values were recalculated, and it was discovered that the orbital period of V520 Cas shows a continuous decrease at a rate of dP/dt = -6.35 x 10(-7) days yr(-1). The period of V680 Per was improved and shows no obvious variation. This work is much more meaningful to investigate on their period changes.
语种英语
学科领域Astronomy & Astrophysics
文章类型Proceedings Paper
出版者ASTRONOMICAL SOC PACIFIC
出版地390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
ISBN号978-1-58381-785-8
归档日期2012-12-19
WOS记录号WOS:000304126300028
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5959
专题双星与变星研究组
通讯作者Wang, JJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
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Wang JJ,Qian SB,Wang, JJ . The Period Corrections of Two W UMa-type Binaries: V520 Cas and V680 Per[C]. 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA:ASTRONOMICAL SOC PACIFIC,2012:159-162.
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