Photometric Studies of Two Neglected Eclipsing Binaries AX Cassiopeia and V1107 Cassiopeia with Possibly Additional Companions
Yang, Yuangui1,2; Li, Kai2,3; Li, Qun1; Dai, Haifeng1,2; Yang, YG
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
2016-04-01
卷号128期号:962
DOI10.1088/1538-3873/128/962/044201
收录类别SCI
关键词Binaries: Close Binaries: Eclipsing Stars: Individual (Ax Cas And V1107 Cas)
摘要New photometry for two eclipsing binaries, AX Cas and V1107 Cas, was carried out during the 2014-2015 observing season. With an updated version of the W-D program, photometric solutions were simultaneously derived from BV light curves. Results indicate that AX Cas is a semi-detached binary with a mass ratio of q=0.400(+/- 0.003) and a fill-out factor of f(p)=88.1(+/- 0.5), while V1107 Cas is a contact one with a mass ratio of f=0.667(+/- 0.003) and a degree of contact of f=11.3%(+/- 0.3%). Based on all collected times of light minimum together with newly observed data, we constructed the (O-C) curves for the two systems. From the period analysis, it is found that orbital period variations may evidently appear that show light-time effect. The modulated period and amplitude are P-mod=17.63(+/- 0.17) and A=0.133(+/- 0016) for AX Cas and P-mod=7.23(+/- 0.14)\quad \mathrm{years} and A=0.0023(+/- 0.0002) for V1107 Cas, respectively. From 26 EB/EW binaries with only cyclic variations, we derived the relation between periods and total masses, indicating that mass loss from the system occurs from the semi-detached configuration to the contact case. The cyclic oscillations for 22 sample stars (including AX Cas and V1107 Cas) may be attributed to third bodies. Additional companions could remove angular momentum from the central systems, which may play a key role in the evolutionary process.
项目资助者National Natural Science Foundation of China(11473009, U1231102, U1431105) ; Open Research Program Foundation(OP201407)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6280
URL查看原文
WOS记录号WOS:000387107800002
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]UNSOLVED QUADRUPLE SYSTEM ; ORBITAL PERIOD MODULATION ; ALGOL-TYPE BINARIES ; LOW-MASS COMPANION ; CONTACT BINARIES ; CLOSE BINARIES ; RADIAL-VELOCITY ; URSAE-MAJORIS ; LIGHT CURVES ; STARS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9768
专题中国科学院天体结构与演化重点实验室
通讯作者Yang, YG
作者单位1.School of Physics and Electronic Information/Information College, Huaibei Normal University, 235000 Huaibei, Anhui Province, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
3.School of Space Science and Physics, Shandong University at Weihai, 264209 Weihai, Shandong Province, China
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Yang, Yuangui,Li, Kai,Li, Qun,et al. Photometric Studies of Two Neglected Eclipsing Binaries AX Cassiopeia and V1107 Cassiopeia with Possibly Additional Companions[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2016,128(962).
APA Yang, Yuangui,Li, Kai,Li, Qun,Dai, Haifeng,&Yang, YG.(2016).Photometric Studies of Two Neglected Eclipsing Binaries AX Cassiopeia and V1107 Cassiopeia with Possibly Additional Companions.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,128(962).
MLA Yang, Yuangui,et al."Photometric Studies of Two Neglected Eclipsing Binaries AX Cassiopeia and V1107 Cassiopeia with Possibly Additional Companions".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 128.962(2016).
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