A Study of Cataclysmic Variables from the eFEDS Survey
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866911257689325568 |
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| author | Wang, Rui Gu, Wei-Min Zhang, Zhi-Xiang Yi, Tuan Qi, Senyu Xu, Xiao-Jie |
| author_facet | Wang, Rui Gu, Wei-Min Zhang, Zhi-Xiang Yi, Tuan Qi, Senyu Xu, Xiao-Jie |
| contents | We present 17 cataclysmic variables (CVs) obtained from the crossmatch between the Sloan Digital Sky Survey (SDSS) and eROSITA Final Equatorial Depth Survey (eFEDS), including 8 known CVs before eFEDS and 9 identified from eFEDS. The photometric periods of four CVs are derived from the Zwicky Transient Facility (ZTF) and Catalina Real-Time Transient Survey (CRTS). We focus on two CVs, SDSS J084309.3$-$014858 and SDSS J093555.0+042916, and confirm that their photometric periods correspond to the orbital periods by fitting the radial velocity curves. Furthermore, by the combination of the Gaia distance, the spectral energy distribution, and the variations of $\mathrm{H}\mathrmα$ emission lines, the masses of the white dwarf and the visible star can be well constrained. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_06814 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Study of Cataclysmic Variables from the eFEDS Survey Wang, Rui Gu, Wei-Min Zhang, Zhi-Xiang Yi, Tuan Qi, Senyu Xu, Xiao-Jie Solar and Stellar Astrophysics We present 17 cataclysmic variables (CVs) obtained from the crossmatch between the Sloan Digital Sky Survey (SDSS) and eROSITA Final Equatorial Depth Survey (eFEDS), including 8 known CVs before eFEDS and 9 identified from eFEDS. The photometric periods of four CVs are derived from the Zwicky Transient Facility (ZTF) and Catalina Real-Time Transient Survey (CRTS). We focus on two CVs, SDSS J084309.3$-$014858 and SDSS J093555.0+042916, and confirm that their photometric periods correspond to the orbital periods by fitting the radial velocity curves. Furthermore, by the combination of the Gaia distance, the spectral energy distribution, and the variations of $\mathrm{H}\mathrmα$ emission lines, the masses of the white dwarf and the visible star can be well constrained. |
| title | A Study of Cataclysmic Variables from the eFEDS Survey |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2511.06814 |