A New IW And-type Star: Karachurin 12 with Tilted Disks and Diverse Cycles
文献类型：期刊论文
| 作者 | Sun, Qi-Bin4,5; Qian, Sheng-Bang4,5; Zhu LY(朱俐颖)2,3 ; Li, Qin-Mei1,5; Li FX(李福兴)3,5; Li MY(李敏榆)2,3; Li P(李平)2,3
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 976期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad8446 |
| 产权排序 | 第3完成单位 |
| 文献子类 | Article |
| 英文摘要 | The IW And-type phenomenon in cataclysmic variables presents a significant challenge to the accretion disk instability model. Using photometric data from the All-Sky Automated Survey for Supernovae, the Zwicky Transient Facility, and the Transiting Exoplanet Survey Satellite, we identify Karachurin 12 as a new noneclipsing IW And-type object with a cycle period of 35.69(3) days. We also report for the first time that Karachurin 12 is a negative superhump (NSH) system featuring precessing tilted disks, with precession, orbital, and NSH periods of 4.9588(2) days, 0.3168895(13) days, and 0.2979861(8) days, respectively. Our analysis, using dips as the index and NSHs as the probe, reveals diverse cycle patterns in Karachurin 12, with NSH amplitude varying throughout the cycle. These findings offer new insights for studying tilted disks and the IW And-type phenomenon. The mass-transfer burst model has difficulty explaining the observed variations in NSH amplitude, especially given the uncertainty surrounding the origin of the mass-transfer burst. Meanwhile, the tilted thermally unstable disk model indicates a possible connection to the IW And-type phenomenon, but it also struggles to account for the detailed variations in Karachurin 12. Therefore, a wider range of factors must be considered to fully understand the complex changes in Karachurin 12. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | QUASI-PERIODIC OSCILLATIONS ; X-RAY OBSERVATIONS ; SU UMA STARS ; CATACLYSMIC VARIABLES ; NEGATIVE SUPERHUMPS ; ACCRETION DISK ; INSTABILITY MODEL ; DWARF NOVAE ; SPH SIMULATIONS ; V344 LYRAE |
| 资助项目 | MOST divided by National Key Research and Development Program of China (NKPs)https://doi.org/10.13039/501100012166[2022YFE0116800]; National Key R&D Program of China[11933008]; National Natural Science Foundation of China |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001355371500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Key Research and Development Program of China (NKPs)https://doi.org/10.13039/501100012166[2022YFE0116800] ; National Key R&D Program of China[11933008] ; National Natural Science Foundation of China |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27684]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 作者单位 | 1.Department of Physics, College of Physics, Guizhou University, Guiyang, 550025, People's Republic of China 2.University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing, People's Republic of China; 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 4.Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China; 5.Department of Astronomy, School of Physics and Astronomy, Yunnan University, Kunming 650091, People's Republic of China; qiansb@ynu.edu.cn; |
| 推荐引用方式 GB/T 7714 | Sun, Qi-Bin,Qian, Sheng-Bang,Zhu LY,et al. A New IW And-type Star: Karachurin 12 with Tilted Disks and Diverse Cycles[J]. ASTROPHYSICAL JOURNAL,2024,976(1). |
| APA | Sun, Qi-Bin.,Qian, Sheng-Bang.,朱俐颖.,Li, Qin-Mei.,李福兴.,...&李平.(2024).A New IW And-type Star: Karachurin 12 with Tilted Disks and Diverse Cycles.ASTROPHYSICAL JOURNAL,976(1). |
| MLA | Sun, Qi-Bin,et al."A New IW And-type Star: Karachurin 12 with Tilted Disks and Diverse Cycles".ASTROPHYSICAL JOURNAL 976.1(2024). |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。