γ DOR: A PULSATING COMPONENT OF KIC 8043961 IN A STELLAR TRIPLE SYSTEM
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Published:2020-10-01
Issue:2
Volume:56
Page:179-191
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ISSN:0185-1101
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Container-title:Revista Mexicana de Astronomía y Astrofísica
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language:
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Short-container-title:RMxAA
Author:
Kamil C.1, Dal H. A.1, Özdarcan O.1, Yoldaş E.1
Affiliation:
1. Department of Astronomy and Space Sciences, University of Ege, İzmir, Turkey
Abstract
We present new findings about KIC 8043961. We find the effective temperatures of the components as 6900 ± 200 K for the primary, and 6598 ± 200 K for the secondary, while the logarithm of the surface gravities are found to be 4.06 cm s-2 and 3.77 cm s-2, respectively. Combination of the light curve with the spectroscopic orbit model results leads to a mass ratio of 1.09 ± 0.07 with an orbital inclination of 73.71 ± 0.14 and a semi-major axis of 8.05 ± 0.22 R⨀ . Masses of the primary and secondary components are calculated as 1.379 ± 0.109 M⨀ and 1.513 ± 0.181 M⨀, while the radii are found to be 1.806 ± 0.084 R⨀ and 2.611 ± 0.059 R⨀. In addition, we obtain a considerable light contribution (≈0.54%) of a third body. We compute a possible mass for the third body as 0.778 ± 0.002 M⨀. We find that the primary component exhibits γ Dor type pulsations with 137 frequencies.
Publisher
Universidad Nacional Autonoma de Mexico
Subject
Space and Planetary Science,Astronomy and Astrophysics
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