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TESS Asteroseismic Analysis of HD 76920: The Giant Star Hosting an Extremely Eccentric Exoplanet

文献类型：期刊论文

作者Jiang, Chen37; Wu T(吴涛)32,33,34,35,36; Feinstein, Adina D.31; Stassun, Keivan G.30; Bedding, Timothy R.28,29; Veras, Dimitri25,26,27; Corsaro, Enrico24; Buzasi, Derek L.23; Stello, Dennis22,28,29; Li, Yaguang28,29
刊名ASTROPHYSICAL JOURNAL
出版日期2023-03-01
卷号945期号:1
ISSN号0004-637X
DOI10.3847/1538-4357/acb8ac
产权排序第2完成单位
文献子类Article
英文摘要The Transiting Exoplanet Survey Satellite (TESS) mission searches for new exoplanets. The observing strategy of TESS results in high-precision photometry of millions of stars across the sky, allowing for detailed asteroseismic studies of individual systems. In this work, we present a detailed asteroseismic analysis of the giant star HD 76920 hosting a highly eccentric giant planet (e = 0.878) with an orbital period of 415 days, using five sectors of TESS light curve that cover around 140 days of data. Solar-like oscillations in HD 76920 are detected around 52 mu Hz by TESS for the first time. By utilizing asteroseismic modeling that takes classical observational parameters and stellar oscillation frequencies as constraints, we determine improved measurements of the stellar mass (1.22 +/- 0.11 M-?), radius (8.68 +/- 0.34 R-?), and age (5.2 +/- 1.4 Gyr). With the updated parameters of the host star, we update the semimajor axis and mass of the planet as a = 1.165 +/- 0.035 au and M-p sin i = 3.57 +/- 0.22M(Jup). With an orbital pericenter of 0.142 +/- 0.005 au, we confirm that the planet is currently far away enough from the star to experience negligible tidal decay until being engulfed in the stellar envelope. We also confirm that this event will occur within about 100 Myr, depending on the stellar model used.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词SOLAR-LIKE OSCILLATORS ; HIGH-PRECISION ASTEROSEISMOLOGY ; SPIN-ORBIT MISALIGNMENT ; RED GIANTS ; APOKASC CATALOG ; STELLAR MASS ; FUNDAMENTAL PARAMETERS ; PERIOD SPACINGS ; MAIN-SEQUENCE ; KEPLER
资助项目B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; National Science Foundation Graduate Research Fellowship Program[DGE-1746045] ; VILLUM FONDEN[42101] ; Independent Research Fund Denmark's Inge Lehmann program[1131-00014B] ; Erciyes University Scientific Research Projects Coordination Unit[DOSAP MAP-2020-9749] ; National Key Research and Development Program of China[2021YFA1600402] ; National Natural Science Foundation of China[11873084] ; National Natural Science Foundation of China[12133011] ; National Natural Science Foundation of China[12273104] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents ; Spanish Ministry of Science and Innovation (MICINN)[RYC-2015-17697] ; Spanish Ministry of Science and Innovation (MICINN)[PID2019-107187GB-I00] ; Spanish Ministry of Science and Innovation (MICINN)[PID2019-107061GB-C66] ; AEI under the Severo Ochoa Centres of Excellence Program 2020-2023[CEX2019-000920-S] ; PLATO grant ; GOLF CNES grant ; PLATO ASI-INAF agreement[2015-019-R.1-2018] ; Fundacao para a Ciencia e a Tecnologia (FCT)[UIDB/04434/2020] ; Fundacao para a Ciencia e a Tecnologia (FCT)[UIDP/04434/2020] ; Fundacao para a Ciencia e a Tecnologia (FCT)[CEECIND/00476/2018] ; Fundacao para a Ciencia e a Tecnologia (FCT)[CEECIND/02619/2017] ; Alfred P. Sloan Foundation ; National Aeronautics and Space Administration[80NSSC21K0652] ; National Aeronautics and Space Administration[80NSSC20K0593]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000943350800001
出版者IOP Publishing Ltd
资助机构B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; National Science Foundation Graduate Research Fellowship Program[DGE-1746045] ; VILLUM FONDEN[42101] ; Independent Research Fund Denmark's Inge Lehmann program[1131-00014B] ; Erciyes University Scientific Research Projects Coordination Unit[DOSAP MAP-2020-9749] ; National Key Research and Development Program of China[2021YFA1600402] ; National Natural Science Foundation 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 ; Spanish Ministry of Science and Innovation (MICINN)[RYC-2015-17697, PID2019-107187GB-I00, PID2019-107061GB-C66] ; AEI under the Severo Ochoa Centres of Excellence Program 2020-2023[CEX2019-000920-S] ; PLATO grant ; GOLF CNES grant ; PLATO ASI-INAF agreement[2015-019-R.1-2018] ; Fundacao para a Ciencia e a Tecnologia (FCT)[UIDB/04434/2020, UIDP/04434/2020, CEECIND/00476/2018, CEECIND/02619/2017] ; Alfred P. Sloan Foundation ; National Aeronautics and Space Administration[80NSSC21K0652, 80NSSC20K0593]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/25879]  
专题云南天文台_恒星物理研究组
云南天文台_中国科学院天体结构与演化重点实验室
通讯作者Jiang, Chen
作者单位1.School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK
2.Center for Space Science, NYUAD Institute, New York University Abu Dhabi, Abu Dhabi, UAE;
3.Institut für Astrophysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany;
4.University of Southern Queensland, Centre for Astrophysics, USQ Toowoomba, QLD 4350, Australia;
5.School of Physics and Electromechanical Engineering, Shaoguan University, 512005 Shaoguan, Guangdong Province, People's Republic of China;
6.Institute for Astronomy, University of Hawai'i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA;
7.Instituto Federal do Rio Grande do Norte-IFRN, Mossoró - RN, 59628-330, Brazil;
8.Departamento de Fisica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN, Brazil;
9.State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Macau, People's Republic of China;
10.Department of Astronomy and Space Sciences, Science Faculty, Erciyes University, 38030, Melikgazi, Kayseri, Türkiye;
推荐引用方式
GB/T 7714		 Jiang, Chen,Wu T,Feinstein, Adina D.,et al. TESS Asteroseismic Analysis of HD 76920: The Giant Star Hosting an Extremely Eccentric Exoplanet[J]. ASTROPHYSICAL JOURNAL,2023,945(1).
APA Jiang, Chen.,Wu T.,Feinstein, Adina D..,Stassun, Keivan G..,Bedding, Timothy R..,...&Chaplin, William J..(2023).TESS Asteroseismic Analysis of HD 76920: The Giant Star Hosting an Extremely Eccentric Exoplanet.ASTROPHYSICAL JOURNAL,945(1).
MLA Jiang, Chen,et al."TESS Asteroseismic Analysis of HD 76920: The Giant Star Hosting an Extremely Eccentric Exoplanet".ASTROPHYSICAL JOURNAL 945.1(2023).

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