Asteroseismology study of a new faint ZZ Ceti J053009.62+594557.0 discovered in WFST
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2026
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| author | Yonghui, Yang Jincheng, Guo Jie, Lin Tinggui, Wang Ning, Jiang Yibo, Wang Lulu, Fan Min, Fang Bin, Li Feng, Li Hao, Liu Ming, Liang Wentao, Luo Jinlong, Tang Hairen, Wang Jian, Wang Yongquan, Xue Dazhi, Yao Hongfei, Zhang |
| author_facet | Yonghui, Yang Jincheng, Guo Jie, Lin Tinggui, Wang Ning, Jiang Yibo, Wang Lulu, Fan Min, Fang Bin, Li Feng, Li Hao, Liu Ming, Liang Wentao, Luo Jinlong, Tang Hairen, Wang Jian, Wang Yongquan, Xue Dazhi, Yao Hongfei, Zhang |
| contents | In this work, we present a detailed asteroseismological analysis of WFST J053009.62+594557.0, a newly discovered faint pulsating white dwarf by the Wide Field Survey Telescope (WFST) with a Gaia G magnitude of 19.13. Analysis of two nights of high-precision WFST g band photometry reveals three significant pulsation frequencies with high signal-to-noise ratios. Follow-up P200/DBSP spectroscopy classifies the object as a DA white dwarf with Teff=11,609 $\pm$ 605 K and M = 0.63$\pm$ 0.22 $M_{\odot}$. To probe its internal structure, we construct asteroseismological models with the White Dwarf Evolution Code (WDEC). After exploring sufficient matching models, best-fitting solutions yield Teff=11,850$\pm$ 10 K and M = 0.600 $\pm$ 0.005 $M_{\odot}$, consistent with independent constraints from Gaia color-magnitude diagram, Gaia XP spectrum, P200 spectral fitting, SED fitting, and Gaia parallax. It has shown that the asteroseismological distance agrees with the Gaia parallax to 1.45\%. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2601_00595 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Asteroseismology study of a new faint ZZ Ceti J053009.62+594557.0 discovered in WFST Yonghui, Yang Jincheng, Guo Jie, Lin Tinggui, Wang Ning, Jiang Yibo, Wang Lulu, Fan Min, Fang Bin, Li Feng, Li Hao, Liu Ming, Liang Wentao, Luo Jinlong, Tang Hairen, Wang Jian, Wang Yongquan, Xue Dazhi, Yao Hongfei, Zhang Solar and Stellar Astrophysics In this work, we present a detailed asteroseismological analysis of WFST J053009.62+594557.0, a newly discovered faint pulsating white dwarf by the Wide Field Survey Telescope (WFST) with a Gaia G magnitude of 19.13. Analysis of two nights of high-precision WFST g band photometry reveals three significant pulsation frequencies with high signal-to-noise ratios. Follow-up P200/DBSP spectroscopy classifies the object as a DA white dwarf with Teff=11,609 $\pm$ 605 K and M = 0.63$\pm$ 0.22 $M_{\odot}$. To probe its internal structure, we construct asteroseismological models with the White Dwarf Evolution Code (WDEC). After exploring sufficient matching models, best-fitting solutions yield Teff=11,850$\pm$ 10 K and M = 0.600 $\pm$ 0.005 $M_{\odot}$, consistent with independent constraints from Gaia color-magnitude diagram, Gaia XP spectrum, P200 spectral fitting, SED fitting, and Gaia parallax. It has shown that the asteroseismological distance agrees with the Gaia parallax to 1.45\%. |
| title | Asteroseismology study of a new faint ZZ Ceti J053009.62+594557.0 discovered in WFST |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2601.00595 |