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@article{1773598,
author = {Rappaport, S. A. and Kurtz, D. W. and Handler, G. and Jones, D. and Nelson, L. A. and Saio, H. and Fuller, J. and Holdsworth, D. L. and Vanderburg, A. and Žák, Jiří and Skarka, Marek and Aiken, J. and Maxted, P. F. L. and Stevens, D. J. and Feliz, D. L. and Alicavu, F. K.},
article_number = {1},
doi = {http://dx.doi.org/10.1093/mnras/stab336},
keywords = {binaries: general; stars: individual: TIC 63328020; stars: oscillations},
language = {eng},
issn = {0035-8711},
journal = {Monthly Notices of the Royal Astronomical Society},
title = {A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020},
url = {https://doi.org/10.1093/mnras/stab336},
volume = {503},
year = {2021}
}
TY - JOUR
ID - 1773598
AU - Rappaport, S. A. - Kurtz, D. W. - Handler, G. - Jones, D. - Nelson, L. A. - Saio, H. - Fuller, J. - Holdsworth, D. L. - Vanderburg, A. - Žák, Jiří - Skarka, Marek - Aiken, J. - Maxted, P. F. L. - Stevens, D. J. - Feliz, D. L. - Alicavu, F. K.
PY - 2021
TI - A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020
JF - Monthly Notices of the Royal Astronomical Society
VL - 503
IS - 1
SP - 254-269
EP - 254-269
PB - Oxford University Press
SN - 00358711
KW - binaries: general
KW - stars: individual: TIC 63328020
KW - stars: oscillations
UR - https://doi.org/10.1093/mnras/stab336
N2 - 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 identified as a sectoral dipole mode with l = 1, |m| = 1. We find the pulsating star to have M1≃2.5M⊙, R1≃3R⊙, and Teff, 1 ≃ 8000 K, while the secondary has M2≃1.1M⊙, R2≃2R⊙, and Teff, 2 ≃ 5600 K. Both stars appear to be close to filling their respective Roche lobes. The properties of this binary as well as the tidally tilted pulsations differ from the previous two tidally tilted pulsators, HD74423 and CO Cam, in important ways. We also study the prior history of this system with binary evolution models and conclude that extensive mass transfer has occurred from the current secondary to the primary.
ER -
RAPPAPORT, S. A., D. W. KURTZ, G. HANDLER, D. JONES, L. A. NELSON, H. SAIO, J. FULLER, D. L. HOLDSWORTH, A. VANDERBURG, Jiří ŽÁK, Marek SKARKA, J. AIKEN, P. F. L. MAXTED, D. J. STEVENS, D. L. FELIZ a F. K. ALICAVU. A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020. Online. \textit{Monthly Notices of the Royal Astronomical Society}. Oxford University Press, 2021, roč.~503, č.~1, s.~254-269. ISSN~0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stab336. [citováno 2024-04-23]
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