HD 32239: An Algol type eclipsing binary with a γ Doradus type component

New Astronomy(2023)

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摘要
HD 32239 is an Algol-type eclipsing binary with one of the components showing γ Doradus type pulsation. In this study by using the Transiting Exoplanet Survey Satellite (TESS) observations of the HD 32239 system published in Sectors 5 and 32, we obtained the minima times of the eclipsing system and calculated the new light elements by using the (O−C) technique, the out of eclipse variation related to the pulsation was analysed in the frequency domain and g-mode pulsations were detected at frequencies of 1.24–2.83 d−1. After removing the pulsational variation from the light curve we obtained the physical and geometrical parameters of the components by using the well known Wilson–Devinney code.
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关键词
Stars: binaries: eclipsing: pulsation,Stars: fundamental parameters,Technique: photometry,Stars: individual (HD 32239)
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