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| मुख्य लेखकों: | , , , , , , , , |
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| स्वरूप: | Preprint |
| प्रकाशित: |
2024
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| विषय: | |
| ऑनलाइन पहुंच: | https://arxiv.org/abs/2404.07127 |
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| _version_ | 1866911834927267840 |
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| author | Gu, Hongrui Yuan, Haibo Dong, Subo Zheng, Chenfa Cui, Shenzhe Ren, Yi Fu, Haozhu Huang, Yang Fan, Zhou |
| author_facet | Gu, Hongrui Yuan, Haibo Dong, Subo Zheng, Chenfa Cui, Shenzhe Ren, Yi Fu, Haozhu Huang, Yang Fan, Zhou |
| contents | Utilizing high-cadence and continuous g- and r-band data over three nights acquired from the 3.6-meter Canada France Hawaii Telescope (CFHT) aimed to find short-duration microlensing events, we conduct a systematic search for variables, transients, and asteroids across a $\sim1^\circ$ field of view of the Andromeda Galaxy (M 31). We present a catalog of 5859 variable stars, yielding the most extensive compilation of short-period variable sources of M 31. We also detected 19 flares, predominantly associated with foreground M dwarfs in the Milky Way. In addition, we discovered 17 previously unknown asteroid candidates, and we subsequently reported them to the Minor Planet Center. Lastly, we report a microlensing event candidate C-ML-1 and present a preliminary analysis. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_07127 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Searching for short-period variables in M31: method and catalogs Gu, Hongrui Yuan, Haibo Dong, Subo Zheng, Chenfa Cui, Shenzhe Ren, Yi Fu, Haozhu Huang, Yang Fan, Zhou Solar and Stellar Astrophysics Earth and Planetary Astrophysics Astrophysics of Galaxies Utilizing high-cadence and continuous g- and r-band data over three nights acquired from the 3.6-meter Canada France Hawaii Telescope (CFHT) aimed to find short-duration microlensing events, we conduct a systematic search for variables, transients, and asteroids across a $\sim1^\circ$ field of view of the Andromeda Galaxy (M 31). We present a catalog of 5859 variable stars, yielding the most extensive compilation of short-period variable sources of M 31. We also detected 19 flares, predominantly associated with foreground M dwarfs in the Milky Way. In addition, we discovered 17 previously unknown asteroid candidates, and we subsequently reported them to the Minor Planet Center. Lastly, we report a microlensing event candidate C-ML-1 and present a preliminary analysis. |
| title | Searching for short-period variables in M31: method and catalogs |
| topic | Solar and Stellar Astrophysics Earth and Planetary Astrophysics Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2404.07127 |