A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020

S. A. Rappaport,D. W. Kurtz,G. Handler,D. Jones, L. A. Nelson,H. Saio, J. Fuller,D. L. Holdsworth,A. Vanderburg,J. Žák,M. Skarka, J. Aiken, P. F. L. Maxted, D. J. Stevens,D. L. Feliz,F. Kahraman Aliçavuş

Monthly Notices of the Royal Astronomical Society（2021）

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摘要

We report the discovery of the third tidally tilted pulsator, TIC 63328020. Observations with the TESS satellite reveal binary eclipses with an orbital period of 1.1057 d, and δ Scuti-type pulsations with a mode frequency of 21.09533 d−1. This pulsation exhibits a septuplet of orbital sidelobes as well as a harmonic quintuplet. Using the oblique pulsator model, the primary oscillation is identifie...

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关键词

binaries: general,stars: individual: TIC 63328020,stars: oscillations

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