New Variable Hot Subdwarf Stars Identified from Anomalous Gaia Flux Errors, Observed by TESS, and Classified via Fourier Diagnostics

• Published in: arXiv.org
• Main Authors: Barlow, Brad N, Corcoran, Kyle A, Parker, Isabelle M, Kupfer, Thomas, Németh, Péter, Hermes, J J, Lopez, Isaac D, Frondorf, Will J, Vestal, David, Holden, Jazzmyn
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 21.12.2021
• Subjects: Astronomical models; Atmospheric models; Binary stars; Cataclysmic variables; Classification; Doppler effect; Errors; Light curve; Parameters; Photometry; Red giant stars; Reflection; Stellar evolution; Stellar seismology; Subdwarf stars

Hot subdwarf stars are mostly stripped red giants that can exhibit photometric variations due to stellar pulsations, eclipses, the reflection effect, ellipsoidal modulation, and Doppler beaming. Detailed studies of their light curves help constrain stellar parameters through asteroseismological anal...