Evidence of Stellar Oscillations in the Post-common-envelope Binary Candidate ASASSN-V J205543.90+240033.5

doi:10.3847/2041-8213/acec4c

YNAO OpenIR > 星系类星体研究组

	Evidence of Stellar Oscillations in the Post-common-envelope Binary Candidate ASASSN-V J205543.90+240033.5
	Takata, J.1; Kong, A. K. H.2; Wang, X. F.1; Song FF(宋非凡)3,4,5 ; Mao JR(毛基荣)3,4,6 ; Hou X(侯贤)3,4 ; Hu, C.-P.7; Lin, L. C.-C.8; Li, K. L.8; Hui, C. Y.9
发表期刊	ASTROPHYSICAL JOURNAL LETTERS
	2023-08-01
卷号	953 期号:2
DOI	10.3847/2041-8213/acec4c
产权排序	第3完成单位
收录类别	SCI
摘要	ASASSN-V J205543.90+240033.5 (ASJ2055) is a possible post-common-envelope binary system. Its optical photometric data show an orbital variation of about 0.52 days and a fast period modulation of P (0) & SIM; 9.77 minutes, whose origin is unknown. In this Letter, we report evidence of the stellar oscillation of the companion star as the origin of the fast period modulation. We analyze the photometric data taken by the Transiting Exoplanet Survey Satellite, the Liverpool Telescope, and the Lulin One-meter Telescope. It is found that the period of the 9.77 minutes signal measured in 2022 August is significantly shorter than that in 2021 July/August, and the magnitude of the change is of the order of divide oP (0) divide /P (0) & SIM; 0.0008(4). Such a large variation will be incompatible with the scenario of the white dwarf (WD) spin as the origin of the 9.77 minutes periodic modulation. We suggest that the fast periodic signal is related to the emission from the irradiated companion star rather than that of the WD. Using existing photometric data covering a wide wavelength range, we estimate that the hot WD in ASJ2055 has a temperature of T (eff) & SIM; 80,000 K and is heating the oscillating M-type main-sequence star with T (eff) & SIM; 3500 K on its unirradiated surface. The stellar oscillation of the M-type main-sequence star has been predicted in theoretical studies, but no observational confirmation has been done. ASJ2055, therefore, has the potential to be a unique laboratory for investigating the stellar oscillation of an M-type main-sequence star and the heating effect on stellar oscillation.
资助项目	National Key Research and Development Program of China[2020YFC2201400] ; National Natural Science Foundation of China[12173014] ; National Natural Science Foundation of China[12041303] ; National Natural Science Foundation of China[111-2112-M-007-020] ; National Science and Technology Council of Taiwan[11673062] ; Yunnan Revitalization Talent Support Program (YunLing Scholar Award) ; National Science and Technology Council[MOST 109-2112-M-018-009-MY3] ; NSTC[110-2112-M-006-006-MY3] ; NSTC[111-2811-M-006-012] ; National Science and Technology Council[111-2636-M-006-024] ; Ministry of Education of the Republic of China (Taiwan) ; research fund of Chungnam National University ; National Research Foundation of Korea[2022R1F1A1073952]
项目资助者	National Key Research and Development Program of China[2020YFC2201400] ; National Natural Science Foundation of China[12173014, 12041303, 111-2112-M-007-020] ; National Science and Technology Council of Taiwan[11673062] ; Yunnan Revitalization Talent Support Program (YunLing Scholar Award) ; National Science and Technology Council[MOST 109-2112-M-018-009-MY3] ; NSTC[110-2112-M-006-006-MY3, 111-2811-M-006-012] ; National Science and Technology Council[111-2636-M-006-024] ; Ministry of Education of the Republic of China (Taiwan) ; research fund of Chungnam National University ; National Research Foundation of Korea[2022R1F1A1073952]
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	2041-8205
URL	查看原文
WOS记录号	WOS:001049744300001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	WHITE-DWARF PULSAR ; MT. SUHORA SURVEY ; SUBDWARF B STAR ; PULSATIONS ; EMISSION ; SYSTEM ; MODEL ; SPECTROSCOPY
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/114a53/26177
专题	星系类星体研究组中国科学院天体结构与演化重点实验室
通讯作者	Takata, J.
作者单位	1.Department of Astronomy, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China; [email protected]; 2.Institute of Astronomy, National Tsing Hua University, Hsinchu 30013, Taiwan; [email protected]; 3.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, Yunnan Province, People's Republic of China; 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, People's Republic of China; 5.University of Chinese Academy of Sciences, 100049 Beijing, People's Republic of China; 6.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, 100012 Beijing, People's Republic China; 7.Department of Physics, National Changhua University of Education, Changhua 50007, Taiwan; 8.Department of Physics, National Cheng Kung University, Tainan 701401, Taiwan; 9.Department of Astronomy and Space Science, Chungnam National University, Daejeon 305-764, Republic of Korea
推荐引用方式 GB/T 7714	Takata, J.,Kong, A. K. H.,Wang, X. F.,et al. Evidence of Stellar Oscillations in the Post-common-envelope Binary Candidate ASASSN-V J205543.90+240033.5[J]. ASTROPHYSICAL JOURNAL LETTERS,2023,953(2).
APA	Takata, J..,Kong, A. K. H..,Wang, X. F..,Song FF.,Mao JR.,...&Hui, C. Y..(2023).Evidence of Stellar Oscillations in the Post-common-envelope Binary Candidate ASASSN-V J205543.90+240033.5.ASTROPHYSICAL JOURNAL LETTERS,953(2).
MLA	Takata, J.,et al."Evidence of Stellar Oscillations in the Post-common-envelope Binary Candidate ASASSN-V J205543.90+240033.5".ASTROPHYSICAL JOURNAL LETTERS 953.2(2023).

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
Evidence of Stellar （1441KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文