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| A Study of Subsurface Convection Zones of Fast Rotating Massive Stars | |
He, Xiaolong1,2; Lu, Guoliang1,2; Zhu, Chunhua1 ; Li, Lin1; Liu, Helei1; Guo, Sufen1; Lu, Xizhen1; Li, Lei1; Wang, Hao1
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| 2025-03-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 25Issue:3Pages:035002 |
| Contribution Rank | 2 |
| Abstract | The subsurface convective zones (CZs) of massive stars significantly influence many of their key characteristics. Previous studies have paid little attention to the impact of rotation on the subsurface CZ, so we aim to investigate the evolution of this zone in rapidly rotating massive stars. We use the Modules for Experiments in Stellar Astrophysics to simulate the subsurface CZs of massive stars during the main sequence phase. We establish stellar models with initial masses ranging from 5 M-circle dot to 120 M-circle dot, incorporating four metallicities (Z = 0.02, 0.006, 0.002, and 0.0001) and three rotational velocities (omega/omega(crit) = 0, omega/omega(crit) = 0.50, and omega/omega(crit) = 0.75). We find that rapid rotation leads to an expansion of the subsurface CZ, increases convective velocities, and promotes the development of this zone. Additionally, subsurface CZs can also emerge in stars with lower metallicities. Comparing our models with observations of massive stars in the Galaxy, the Large Magellanic Cloud, and the Small Magellanic Cloud, we find that rotating models better encompass the observed samples. Rotation significantly influences the evolution of the subsurface CZ in massive stars. By comparing with the observed microturbulence on the surfaces of OB stars, we propose that the subsurface CZs may be one of the sources of microturbulence. |
| Keyword | stars: early-type stars: evolution stars: massive stars: rotation convection |
| DOI | 10.1088/1674-4527/adb47e |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | O-TYPE STARS ; VLT-FLAMES SURVEY ; B-TYPE STARS ; LOW-FREQUENCY VARIABILITY ; MAGNETIC-FIELDS ; NITROGEN ABUNDANCES ; TURBULENT PRESSURE ; STELLAR EVOLUTION ; ATMOSPHERIC PARAMETERS ; CHEMICAL-COMPOSITIONS |
| Funding Project | National Natural Science Foundation of China[U2031204] ; National Natural Science Foundation of China[12163005] ; National Natural Science Foundation of China[12373038] ; National Natural Science Foundation of China[12288102] ; National Natural Science Foundation of China[12263006] ; China Manned Space Project[CMSCSST-2021-A10] ; Natural Science Foundation of Xinjiang[2022D01D85] ; Natural Science Foundation of Xinjiang[2022TSYCLJ0006] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-3] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001435418000001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | National Natural Science Foundation of China ; China Manned Space Project ; Natural Science Foundation of Xinjiang ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7479 |
| Collection | 射电天文研究室_理论天体物理研究团组 |
| Corresponding Author | Lu, Guoliang; Zhu, Chunhua |
| Affiliation | 1.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | He, Xiaolong,Lu, Guoliang,Zhu, Chunhua,et al. A Study of Subsurface Convection Zones of Fast Rotating Massive Stars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2025,25(3):035002. |
| APA | He, Xiaolong.,Lu, Guoliang.,Zhu, Chunhua.,Li, Lin.,Liu, Helei.,...&Wang, Hao.(2025).A Study of Subsurface Convection Zones of Fast Rotating Massive Stars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,25(3),035002. |
| MLA | He, Xiaolong,et al."A Study of Subsurface Convection Zones of Fast Rotating Massive Stars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 25.3(2025):035002. |
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| He-2025-A Study of S（3978KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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