The HADS Star CSS_J102714.3+205943: a Component of a Binary System with an Elliptic Orbit?
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866910968415518720 |
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| author | Pyatnytskyy, Maksym Yu. Andronov, Ivan L. |
| author_facet | Pyatnytskyy, Maksym Yu. Andronov, Ivan L. |
| contents | We analyzed period changes of the high-amplitude Delta Scuti variable star CSS_J102714.3+205943 for about 20 years, utilizing data from the automated sky surveys along with our own observations. With the help of the O-C diagram, we found that the period decreased noticeably between JD2454800 and JD2457300. A possible cause of the change could be intrinsic processes in the star. However, the observed behavior of the O-C diagram can also be explained by the light-time effect if the star is a component of a binary system. Times of maxima for the star, derived from the surveys and our observations, are listed. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2503_23521 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The HADS Star CSS_J102714.3+205943: a Component of a Binary System with an Elliptic Orbit? Pyatnytskyy, Maksym Yu. Andronov, Ivan L. Solar and Stellar Astrophysics We analyzed period changes of the high-amplitude Delta Scuti variable star CSS_J102714.3+205943 for about 20 years, utilizing data from the automated sky surveys along with our own observations. With the help of the O-C diagram, we found that the period decreased noticeably between JD2454800 and JD2457300. A possible cause of the change could be intrinsic processes in the star. However, the observed behavior of the O-C diagram can also be explained by the light-time effect if the star is a component of a binary system. Times of maxima for the star, derived from the surveys and our observations, are listed. |
| title | The HADS Star CSS_J102714.3+205943: a Component of a Binary System with an Elliptic Orbit? |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2503.23521 |