Institutional Repository of Optical Astronomy Research Laboratory
| Searching for Variable Stars in the Open Cluster NGC 2355 and Its Surrounding Region | |
Wang, Hong1,2 ; Zhang, Yu1,2; Zeng, Xiangyun3; Hu, Qingshun1,2; Liu, Jinzhong1,2; Qin, Mingfeng1,2; Lu, Guoliang4
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| 2022-08-01 | |
| Source Publication | Astronomical Journal
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| ISSN | 0004-6256 |
| Volume | 164Issue:2Pages:40 |
| Contribution Rank | 1 |
| Abstract | We have investigated the variable stars in the field surrounding NGC 2355 based on the time-series photometric observation data. More than 3000 CCD frames were obtained in the V band spread over 13 nights with the Nanshan One-meter Wide-field Telescope. We have detected 88 variable stars, containing 72 new variable stars and 16 known variable stars. By analyzing these light curves, we classified the variable stars as follows: 26 eclipsing binaries, 52 pulsating stars, four rotating variables, and six unclear type-variable stars for which their periods are much longer than the time baseline chosen. Employing Gaia DR2 parallax, kinematics, and photometry, the cluster memberships of these variable stars were also analyzed for NGC 2355. In addition to the 11 variable members reported by Cantat-Gaudin et al. (2018), we identify four more variable member candidates located at the outer region of NGC 2355 and showed homogeneity in space positions and kinematic properties with the cluster members. The main physical parameters of NGC 2355 estimated from the two-color and color-magnitude diagrams are log(age/yr) = 8.9, E(B - V) = 0.24 mag, and [Fe/H] = -0.07 dex. |
| Keyword | pulsation telescope algorithm astropy system Astronomy & Astrophysics |
| Subtype | Article |
| DOI | 10.3847/1538-3881/ac755a |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000824858200001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5145 |
| Collection | 光学天文与技术应用研究室 科研仪器设备产出_利用南山1米大视场望远镜（NOWT）观测数据的文章 光学天文与技术应用研究室_星团与星系研究团组 |
| Affiliation | 1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, Peopleʼs Republic of China; 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, Peopleʼs Republic of China; 3.Center for Astronomy and Space Sciences, China Three Gorges University, Yichang 443000, Peopleʼs Republic of China; 4.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Wang, Hong,Zhang, Yu,Zeng, Xiangyun,et al. Searching for Variable Stars in the Open Cluster NGC 2355 and Its Surrounding Region[J]. Astronomical Journal,2022,164(2):40. |
| APA | Wang, Hong.,Zhang, Yu.,Zeng, Xiangyun.,Hu, Qingshun.,Liu, Jinzhong.,...&Lu, Guoliang.(2022).Searching for Variable Stars in the Open Cluster NGC 2355 and Its Surrounding Region.Astronomical Journal,164(2),40. |
| MLA | Wang, Hong,et al."Searching for Variable Stars in the Open Cluster NGC 2355 and Its Surrounding Region".Astronomical Journal 164.2(2022):40. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Wang-2022-Searching （16914KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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