Asteroseismic imprints of mass transfer in binary stars: Probing the interiors of donors and accretors with gravity and acoustic modes
文献类型：期刊论文
| 作者 | Wu T(吴涛)1,2,3,5,6; Guo, Zhao4,7; Li Y(李焱)1,2,3,5,6 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2026-01-15 |
| 卷号 | 705 |
| 关键词 | asteroseismology waves stars: evolution stars: interiors stars: oscillations stars: rotation |
| ISSN号 | 0004-6361 |
| DOI | 10.1051/0004-6361/202557981 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Context. The synergy between close binary stars and asteroseismology enables constraints on mass-transfer episodes and their consequences for internal structure, rotation profiles, and oscillation modes. Aims. We investigate how mass accretion and donation in close binaries affects the internal structure and oscillation modes of main-sequence stars. Methods. Building on the established relation between the Brunt-V & auml;is & auml;l & auml; (buoyancy) glitch and the Fourier spectra of g-mode period spacings, we quantitatively explain the origins of the g-mode period-spacing differences between single-star and mass-accretion or donation models of intermediate-mass stars (M = 2.0, 3.0, and 4.5 M-circle dot). In particular, the hydrogen mass fraction profiles X of the donor model show two chemical gradient regions, which results in a double-peaked Brunt-V & auml;is & auml;l & auml; profile. The presence of additional buoyancy glitches gives rise to further periodic modulations in the g-mode period spacings. Results. Mass-accretion-induced changes in the chemical profile create sharp features in the buoyancy frequency, which modify both the amplitudes and frequencies of the g-mode period-spacing variations. This behaviour resembles that produced by multiple chemical transition zones in compact pulsators such as white dwarfs and sub-dwarf B stars. Similarly, for acoustic modes in the M = 1 M-circle dot solar-like models, we attribute the differences in frequency-separation ratios between single-star and mass-donor models to the variations in the internal sound-speed gradient (acoustic glitches). We discuss future prospects of using asteroseismology to discover the mass-transfer products and constrain the mass-transfer processes in binary star evolution. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE |
| WOS关键词 | DELTA-SCUTI COMPONENT ; WHITE-DWARFS ; PHASE-SHIFT ; RR-LYRAE ; B-STARS ; EVOLUTION ; MODULES ; SYSTEMS ; PULSATIONS ; ROTATION |
| 资助项目 | Chinese Academy of Sciences[XDB1160202] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001663121200003 |
| 出版者 | EDP SCIENCES S A |
| 资助机构 | [12288102, 12133011, and 12273104] ; [XDB1160202] ; [2021YFA1600400/2021YFA1600402] ; [202401AS070045, 202302AN360001] ; [CMS-CSST-2025-A14/A01] ; [Ndegrees101071505: 4D-STAR] ; [UKRI1179] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28862]  |
| 专题 | 云南天文台_恒星物理研究组 |
| 通讯作者 | Wu T(吴涛); Guo, Zhao; Li Y(李焱) |
| 作者单位 | 1.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang Guandu District Kunming 650216, PR China; 2.International Centre of Supernovae, Yunnan Key Laboratory, 396 Yangfangwang Guandu District Kunming 650216, PR China; 3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang Guandu District Kunming 650216, PR China; 4.Institute of Astronomy (IvS), KU Leuven Celestijnenlaan 200D B-3001 Leuven, Belgium; 5.University of Chinese Academy of Sciences Beijing 100049, PR China; 6.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road Chaoyang District Beijing 100012, PR China; 7.Department of Applied Mathematics, School of Mathematics, University of Leeds Leeds LS2 9JT, UK |
| 推荐引用方式 GB/T 7714 | Wu T,Guo, Zhao,Li Y. Asteroseismic imprints of mass transfer in binary stars: Probing the interiors of donors and accretors with gravity and acoustic modes[J]. ASTRONOMY & ASTROPHYSICS,2026,705. |
| APA | 吴涛,Guo, Zhao,&李焱.(2026).Asteroseismic imprints of mass transfer in binary stars: Probing the interiors of donors and accretors with gravity and acoustic modes.ASTRONOMY & ASTROPHYSICS,705. |
| MLA | 吴涛,et al."Asteroseismic imprints of mass transfer in binary stars: Probing the interiors of donors and accretors with gravity and acoustic modes".ASTRONOMY & ASTROPHYSICS 705(2026). |
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来源：云南天文台
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