AI Hydrae: Revisiting our pulsator friend

Tilaksingh Pawar, Krzysztof G. Hełminiak, Rajeev Singh Rathour, Ayush Moharana and Maciej Konacki

AI Hydrae (AI Hya) is an eclipsing binary system with a delta Scuti pulsator. We model its photometric data, observed by the Transiting Exoplanet Survey Satellite (TESS). This is done using JKTEBOP lightcurve modelling software by fitting sinusoidal and polynomial functions along with the binary orbit, to account for the variability caused by the pulsations. This modelling is further complemented by the frequency analysis of the out-of-eclipse pulsation signals and analysis of our own set of spectra observed at different orbital phases using HIgh Definition Echelle Spectrograph (HIDES).

Proceedings of the Polish Astronomical Society, vol. 12, 189-191 (2022)

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