| Pinwheel Outflow Induced by Stellar Mass Loss in a Coplanar Triple System | |
Kim, Hyosun1; Morris, Mark R.2; Kim, Jongsoo1; He JH(何金华)3,4,5
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2024-05-01 | |
| 卷号 | 966期号:2 |
| DOI | 10.3847/1538-4357/ad34b9 |
| 产权排序 | 第3完成单位 |
| 收录类别 | SCI |
| 摘要 | We develop a physical framework for interpreting complex circumstellar patterns whorled around asymptotic giant branch (AGB) stars by investigating stable, coplanar triple systems using hydrodynamic and particle simulations. The introduction of a close tertiary body causes an additional periodic variation in the orbital velocity and trajectory of the AGB star. As a result, the circumstellar outflow builds a fine non-Archimedean spiral pattern superimposed upon the Archimedean spiral produced by the outer binary alone. This fine spiral can be approximated by off-centered circular rings that become tangent to each other at the location of the Archimedean spiral. The superimposed fine pattern fades out relatively quickly as a function of distance from the center of the system, in contrast to the dominant Archimedean spiral pattern, which presents a much slower fractional density decrease with radius. The different rates of radial decrease of the density contrast in the two superimposed patterns, coupled with their different time and spatial scales, lead to an apparent, but illusory radial change in the observed pattern interval, as has been reported, for example, in CW Leo. The function describing the detailed radial dependence of the expansion velocity is different in the two patterns, which may be used to distinguish them. The shape of the circumstellar whorled pattern is further explored as a function of the orbital eccentricity and the inner companion's mass. Although this study is confined to stable, coplanar triple systems, the results are likely applicable to moderately noncoplanar systems and open interesting avenues for studying noncoplanar systems. |
| 资助项目 | National Research Foundation of Korea (NRF)https://doi.org/10.13039/501100003725[NRF-2021R1A2C1008928]; National Research Foundation of Korea (NRF) grant[2023-1-840-00]; Korea Astronomy and Space Science Institute (KASI); Korean government (MSIT)[11873086]; NSFC project; Chinese Academy of Sciences (CAS); CAS South America Center for Astronomy (CASSACA) in Santiago, Chile |
| 项目资助者 | National Research Foundation of Korea (NRF)https://doi.org/10.13039/501100003725[NRF-2021R1A2C1008928] ; National Research Foundation of Korea (NRF) grant[2023-1-840-00] ; Korea Astronomy and Space Science Institute (KASI) ; Korean government (MSIT)[11873086] ; NSFC project ; Chinese Academy of Sciences (CAS) ; CAS South America Center for Astronomy (CASSACA) in Santiago, Chile |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 恒星与银河系 |
| 文章类型 | Article |
| 出版者 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:001221149800001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | PLANETARY-NEBULAE ; PREPLANETARY NEBULAE ; CENTRAL STAR ; BINARY ; COMPANIONS ; WIND ; EVOLUTION ; ENVELOPE ; PATTERN ; PERTURBATIONS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27368 |
| 专题 | 其他 |
| 作者单位 | 1.Korea Astronomy and Space Science Institute, 776 Daedeok-daero, Yuseong-gu, Daejeon 34055, Republic of Korea; [email protected]; 2.Department of Physics and Astronomy, University of California, Los Angeles, CA 90095-1547, USA; 3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China; 4.Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People's Republic of China; 5.Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile |
| 推荐引用方式 GB/T 7714 | Kim, Hyosun,Morris, Mark R.,Kim, Jongsoo,et al. Pinwheel Outflow Induced by Stellar Mass Loss in a Coplanar Triple System[J]. ASTROPHYSICAL JOURNAL,2024,966(2). |
| APA | Kim, Hyosun,Morris, Mark R.,Kim, Jongsoo,&何金华.(2024).Pinwheel Outflow Induced by Stellar Mass Loss in a Coplanar Triple System.ASTROPHYSICAL JOURNAL,966(2). |
| MLA | Kim, Hyosun,et al."Pinwheel Outflow Induced by Stellar Mass Loss in a Coplanar Triple System".ASTROPHYSICAL JOURNAL 966.2(2024). |
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