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TYC 3135-86-1: An sdB+WD Binary with a Potential Thick-envelope Scenario Produced by CE Ejection

文献类型：期刊论文

作者Mao, Yihao1,4; Li J(李蛟)2,3; Li ZW(李振威)2,3; Jia S(贾石)2,3; Wang, Jia-Hui1,4
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2026-05-31
卷号26期号:5
关键词(stars:) binaries: general (stars:) subdwarfs (stars:) white dwarfs
ISSN号1674-4527
DOI10.1088/1674-4527/ae48b6
产权排序第3完成单位
文献子类Article
英文摘要We report the discovery and characterization of a close subdwarf B (sdB) + white dwarf binary system-TYC 3135-86-1. By combining spectroscopy, spectral energy distribution fitting, and light curve modeling, we determine that the sdB component has an effective temperature of T-eff = 22597.10 +/- 413.06 K, a surface gravity of log g=4.97(-0.01)(+0.02) , and a mass of M-1=0.442(-0.019)(+0.026)M(circle dot) . The system has a short orbital period of P = 0.248895435(65) days, and the white dwarf companion has a mass of M-2=0.658(-0.036)(+0.026)M(circle dot) . The compact configuration of the system is consistent with formation through common-envelope (CE) ejection. Within this framework, our MESA models suggest a possible scenario in which the sdB component retains a relatively thick hydrogen envelope at the onset of the post-CE phase, in contrast to the typically thinner envelopes of CE-formed sdB stars.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND
WOS关键词BLANKETED MODEL ATMOSPHERES ; WHITE-DWARF BINARY ; SUBDWARF-B-STARS ; DARKENING COEFFICIENTS ; CONVECTIVE BOUNDARIES ; ASTROPHYSICS ; MODULES ; EVOLUTION ; SDSS ; LIMB
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB1160201]; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB1160303]; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB1160000]; National Natural Science Foundation of China[12288102]; National Natural Science Foundation of China[12503044]; National Natural Science Foundation of China[12433009]; Yunnan Fundamental Research Projects[202501CF070016]; Yunnan Fundamental Research Projects[202401AT070139]; International Centre of Supernovae; Yunnan Key Laboratory of Supernova Research[202302AN360001]; Yunnan Key Laboratory of Supernova Research[202201BC070003]; National Astronomical Observatories, Chinese Academy of Sciences[E4TQ680101]; Young Talent Project of Yunnan Revitalization Talent Support Program
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001727625800001
出版者IOP Publishing Ltd
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences[XDB1160201, XDB1160303, XDB1160000] ; National Natural Science Foundation of China[12288102, 12503044, 12433009] ; Yunnan Fundamental Research Projects[202501CF070016, 202401AT070139] ; International Centre of Supernovae ; Yunnan Key Laboratory of Supernova Research[202302AN360001, 202201BC070003] ; National Astronomical Observatories, Chinese Academy of Sciences[E4TQ680101] ; Young Talent Project of Yunnan Revitalization Talent Support Program
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/29074]  
专题云南天文台_大样本恒星演化研究组
通讯作者Mao, Yihao
作者单位1.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China;
2.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, China
3.International Centre of Supernovae (ICESUN), Yunnan Key Laboratory of Supernova Research, Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, China;
4.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; maoyh@bao.ac.cn;
推荐引用方式
GB/T 7714		 Mao, Yihao,Li J,Li ZW,et al. TYC 3135-86-1: An sdB+WD Binary with a Potential Thick-envelope Scenario Produced by CE Ejection[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2026,26(5).
APA Mao, Yihao,李蛟,李振威,贾石,&Wang, Jia-Hui.(2026).TYC 3135-86-1: An sdB+WD Binary with a Potential Thick-envelope Scenario Produced by CE Ejection.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,26(5).
MLA Mao, Yihao,et al."TYC 3135-86-1: An sdB+WD Binary with a Potential Thick-envelope Scenario Produced by CE Ejection".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 26.5(2026).

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