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Revista mexicana de astronomía y astrofísica

versão impressa ISSN 0185-1101


KAMIL, C.; DAL, H. A.; OZDARCAN, O.  e  YOLDAş, E.. γ Dor: A pulsating component of KIC 8043961 in a stellar triple system. Rev. mex. astron. astrofis [online]. 2020, vol.56, n.2, pp.179-191.  Epub 24-Mar-2021. ISSN 0185-1101.

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.

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