Frequency analysis of Gamma Doradus variables observed by TESS

We present a frequency analysis of $\gamma$ Dor variables based on the TESS photometric data: among 35 objects, period spacing patterns were found in five stars TIC 235680293, TIC 235682463, TIC 416401558, TIC 232620739 and TIC 406927322. We estimate their near-core rotation and make an assumption about the pulsation modes. Also three objects TIC 75784209, TIC 318837103, and TIC 309662501 show pulsations in $p$-modes and $g$-modes simultaneously, and we identify them as $\delta$ Sct–$\gamma$ Dor.

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Published
2024-12-27
DOI
https://doi.org/10.26119/vak2024.058
Primary Topic
Stellar, planetary, and galactic studies
Type
article
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article

Frequency analysis of Gamma Doradus variables observed by TESS

V. V. Dyachenko, S. V. Grigoriev
Stellar, planetary, and galactic studies
article

Frequency analysis of Gamma Doradus variables observed by TESS

V. V. Dyachenko, S. V. Grigoriev
article en

Abstract

We present a frequency analysis of $\gamma$ Dor variables based on the TESS photometric data: among 35 objects, period spacing patterns were found in five stars TIC 235680293, TIC 235682463, TIC 416401558, TIC 232620739 and TIC 406927322. We estimate their near-core rotation and make an assumption about the pulsation modes. Also three objects TIC 75784209, TIC 318837103, and TIC 309662501 show pulsations in $p$-modes and $g$-modes simultaneously, and we identify them as $\delta$ Sct–$\gamma$ Dor.

Kazan Federal University (RU), Special Astrophysical Observatory (RU)
Openalex Percentile: Top 82%
Stellar, planetary, and galactic studies
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