First Photometric Investigations of the Solar-type Binary FV CVn in Multiple Systems
First Photometric Investigations of the Solar-type Binary FV CVn in Multiple Systems
复制标题
多系统中太阳型二元 FV CVn 的首次光度研究
DOI:
10.1088/1538-3873/aaeae2
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发表时间:
2018-12
影响因子:
3.5
通讯作者:
T. Sarotsakulchai
中科院分区:
文献类型:
--
作者:
W.-P. Liao;T. Sarotsakulchai
FV CVn is a solar-type (G7) eclipsing binary whose analysis has so far been ignored. We observed it from 2014 January to 2018 May. The first photometric and orbital period investigation are presented here, combined with spectroscopic observations obtained by the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). The current preliminary solutions show that FV CVn is a new W-subtype contact binary with a mass ratio of q = M2/M1 = 2.44(±0.20) and a temperature difference of △ T = T 2 − T 1 ≃ − 315 K. The orbital period investigation suggests that a cyclic variation of A = 0.0184(±0.0034) days and P3 = 17.65(±0.076) years exists in FV CVn. This cyclic variation is analyzed for the light-travel-time effect (LTTE) via the presence of a third body with a minimum mass of M3min = 0.73(±0.018) M⊙, and an orbital semimajor axis shorter than 5.27(±1.62) au. This is in agreement with the presence of a large quantity of a third light in the system. Photometric solutions suggest that the third body contributes about 26.4(±6.3)% in Rc, and 29.0(±5.9)% in Ic to the total light of the multiple system. The additional component may play an important role in the origin and evolution of central close binary. New radial velocities are needed in the future to check the accuracy of the absolute parameters.
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影响因子:
4.8
作者:
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通讯作者:
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影响因子:
4.8
作者:
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DOI:
10.1111/j.1365-2966.2010.16584.x
发表时间:
2010-04
影响因子:
4.8
作者:
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通讯作者:
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DOI:
10.1086/503871
发表时间:
2006-01
期刊:
The Astronomical Journal
影响因子:
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作者:
T. Pribulla;S. Rucinski
通讯作者:
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DOI:
10.1088/0004-6256/142/4/124
发表时间:
2011-10
期刊:
The Astronomical Journal
影响因子:
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作者:
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通讯作者:
Li-ying Zhu;S. Qian;B. Soonthornthum;J. He;Long-xiang Liu