YNAO OpenIR  > 其他
Shell helium-burning hot subdwarf B stars as candidates for blue large-amplitude pulsators
Xiong HR(熊赫然)1,2,3; Casagrande, L.2; Chen XF(陈雪飞)1,3,4; Vos, J.5; Zhang, X.6; Justham, S.7,8,9,10,11; Li, J.13; Wu T(吴涛)1,3,4,12; Li Y(李焱)1,3,4; Han ZW(韩占文)1,3,4
发表期刊Astronomy and Astrophysics
2022-12-01
卷号668
DOI10.1051/0004-6361/202244571
产权排序第1完成单位
收录类别SCI ; EI
关键词binaries: general stars: oscillations subdwarfs stars: peculiar
摘要

Blue large-amplitude pulsators (BLAPs) are a newly discovered type of variable star. Their typical pulsation periods are on the order of a few tens of minutes, with relatively large amplitudes of 0.2-0.4 mag in optical bands, and their rates of period changes are on the order of 10-7 yr-1 (both positive and negative). They are extremely rare objects and attempts to explain their origins and internal structures have attracted a great deal of attention. Previous studies have proposed that BLAPs may be pre-white dwarfs, with masses around 0.3 Mo, or core-helium-burning stars in the range of ~0.7 - 1.1 Mo. In this work, we use a number of MESA models to compute and explore whether BLAPs could be explained as shell helium-burning subdwarfs type B (SHeB sdBs). The models that best match existing observational constraints have helium core masses in the range of ~0.45 - 0.5 Mo. Our model predicts that the positive rate of period change may evolve to negative. The formation channels for SHeB sdBs involve binary evolution and although the vast majority of BLAPs do not appear to be binaries (with the exception of HD 133729), the observational constraints are still very poor. Motivated by these findings, we explored the Roche lobe overflow channel. Of the 304 binary evolution models we computed, about half of them are able to produce SHeB sdBs in long-period binaries that evade detection from the limited observations that are currently available. © 2022 EDP Sciences. All rights reserved.

资助项目Natural Science Foundation of China[11733008] ; Natural Science Foundation of China[12125303] ; Natural Science Foundation of China[12090040/3] ; Grant Agency of the Czech Republic[GAC. R 22-34467S] ; Netherlands Organisation for Scientific Research (NWO)[639.042.728] ; B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; National Key R&D Program of China[2021YFA1600402] ; NSFC of China[11873084] ; NSFC of China[12133011] ; NSFC of China[12273104] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents ; China Manned Space Project[CMS-CSST-2021-A10] ; [RVO:67985815]
项目资助者Natural Science Foundation of China[11733008, 12125303, 12090040/3] ; Grant Agency of the Czech Republic[GAC. R 22-34467S] ; Netherlands Organisation for Scientific Research (NWO)[639.042.728] ; B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; National Key R&D Program of China[2021YFA1600402] ; NSFC of China[11873084, 12133011, 12273104] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents ; China Manned Space Project[CMS-CSST-2021-A10] ; [RVO:67985815]
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星形成与演化
学科门类理学 ; 理学::天文学
文章类型Journal article (JA)
出版者EDP SCIENCES S A
出版地17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
ISSN0004-6361
URL查看原文
WOS记录号WOS:000931907600008
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CLOSE BINARY EVOLUTION ; FINAL MASS RELATION ; VARIABLE STARS. ; CONVECTIVE BOUNDARIES ; OGLE COLLECTION ; MAIN-SEQUENCE ; SOLAR-TYPE ; MODULES ; MESA ; ASTEROSEISMOLOGY
EI入藏号20230113342562
EI主题词White dwarfs
EI分类号657.2 Extraterrestrial Physics and Stellar Phenomena - 804 Chemical Products Generally
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/25719
专题其他
大样本恒星演化研究组
恒星物理研究组
中国科学院天体结构与演化重点实验室
通讯作者Xiong HR(熊赫然)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, China;
2.Research School of Astronomy and Astrophysics, The Australian National University, Canberra, ACT, 2611, Australia;
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, China;
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, , Beijing, Chaoyang District, 100012, China;
5.Astronomical Institute of the Czech Academy of Sciences, Friova 298, Ondejov, 25165, Czech Republic;
6.Department of Astronomy, Beijing Normal University, X958+PX3, Muduo Rd, Beitaipingzhuang, Haidian District, Beijing, 100088, China;
7.School of Astronomy and Space Science, University of the Chinese Academy of Sciences, 20A Datun Road, , Beijing, Chaoyang District, 100012, China;
8.The Key Laboratory of Optical Astronomy, National Astronomical Observatories, The Chinese Academy of Sciences, Datun Road, Beijing, 100012, China;
9.University of Chinese of Academy of Science, Yuquan Road 19, Shijingshan Block, Beijing, 100049, China;
10.Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, Amsterdam, 1098XH, Netherlands;
11.Max Planck Institute for Astrophysics, Karl-Schwarzschild-Str. 1, Garching, 85748, Germany;
12.Institute of Theoretical Physics, Shanxi University, Shanxi Road, Taiyuan, 030006, China;
13.Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Xiong HR,Casagrande, L.,Chen XF,et al. Shell helium-burning hot subdwarf B stars as candidates for blue large-amplitude pulsators[J]. Astronomy and Astrophysics,2022,668.
APA Xiong HR.,Casagrande, L..,Chen XF.,Vos, J..,Zhang, X..,...&Han ZW.(2022).Shell helium-burning hot subdwarf B stars as candidates for blue large-amplitude pulsators.Astronomy and Astrophysics,668.
MLA Xiong HR,et al."Shell helium-burning hot subdwarf B stars as candidates for blue large-amplitude pulsators".Astronomy and Astrophysics 668(2022).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Shell helium-burning(2447KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Xiong HR(熊赫然)]的文章
[Casagrande, L.]的文章
[Chen XF(陈雪飞)]的文章
百度学术
百度学术中相似的文章
[Xiong HR(熊赫然)]的文章
[Casagrande, L.]的文章
[Chen XF(陈雪飞)]的文章
必应学术
必应学术中相似的文章
[Xiong HR(熊赫然)]的文章
[Casagrande, L.]的文章
[Chen XF(陈雪飞)]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Shell helium-burning hot subdwarf B stars as candidates for blue large-amplitude pulsators.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

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。