Using Asteroseismology to Calibrate the Physical Parameters of Confirmed Exoplanets and Their Evolved Host Stars

doi:10.3847/1538-3881/ad4ffc

	Using Asteroseismology to Calibrate the Physical Parameters of Confirmed Exoplanets and Their Evolved Host Stars
	Lin WX(林文徐)1,2,3,4; Qian, Sheng-Bang 2,3; Zhu LY(朱俐颖)1,4; Liao WP(廖文萍)1,4; Li, Fu-Xing 2,3
刊名	ASTRONOMICAL JOURNAL
	2024-07-01
卷号	168 期号:1
ISSN号	0004-6256
DOI	10.3847/1538-3881/ad4ffc
产权排序	第1完成单位
文献子类	Article
英文摘要	Asteroseismology offers a profound window into stellar interiors and has emerged as a pivotal technique in exoplanetary research. This study harnesses the Transiting Exoplanet Survey Satellite observations to reveal, for the first time, the asteroseismic oscillations of four exoplanet-hosting stars. Through meticulous analysis, we extracted their asteroseismic signatures, enabling the precise determination of stellar masses, radii, luminosities, and surface gravities. These parameters exhibit markedly reduced uncertainties compared to those derived from spectroscopic methods. Crucially, the exoplanets orbiting these stars were initially identified via radial velocity measurements. The refinement of host stellar masses necessitates a corresponding adjustment in planetary characteristics. Employing asteroseismology, we recalibrated the exoplanets' minimum masses and semimajor axes-a novel approach in the field. For instance, the exoplanet HD 5608 b's minimum mass, denoted as M sin i , was ascertained to be 1.421 +/- 0.091M J through the integration of asteroseismic and radial velocity data. Similarly, two planets within the 7 CMa system yielded M sin i values of 1.940 +/- 0.064M J and 0.912 +/- 0.067M J , respectively. Two planets in the HD 33844 system presented M sin i figures of 1.726 +/- 0.145M J and 1.541 +/- 0.182M J , while the HIP 67851 system's planets registered M sin i at 1.243 +/- 0.139M J and a notably higher 5.387 +/- 0.699M J . This investigation extends beyond mere parameter refinement, it underscores the synergy between asteroseismology and exoplanetology, yielding unprecedented precision in system metrics. Focusing on a quartet of K-type giants in advanced evolutionary phases, our work positions these systems as invaluable astrophysical laboratories, offering insights into the potential trajectory of our own solar system's fate.
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
资助项目	National Key R&D Program of China[2022YFE0116800]; National Natural Science Foundation of China[11933008]; National Natural Science Foundation of China[12103084]; Basic research project of Yunnan Province[202301AT070352]; NASA Science Mission Directorate
WOS关键词	SOLAR-LIKE OSCILLATIONS ; RED GIANTS ; FUNDAMENTAL PROPERTIES ; SUBSTELLAR COMPANIONS ; POPULATIONS ; PLANETS ; SYSTEM
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001252877700001
资助机构	National Key R&D Program of China[2022YFE0116800] ; National Natural Science Foundation of China[11933008, 12103084] ; Basic research project of Yunnan Province[202301AT070352] ; NASA Science Mission Directorate
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/27429]
专题	云南天文台_双星与变星研究组
作者单位	1.University of Chinese Academy of Sciences, No.1 Yanqihu East Rd., Huairou District, Beijing 101408, People's Republic of China 2.Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China; 3.Department of Astronomy, School of Physics and Astronomy, Yunnan University, Kunming 650091, People's Republic of China; qiansb@ynu.edu.cn; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China;
推荐引用方式 GB/T 7714	Lin WX,Qian, Sheng-Bang,Zhu LY,et al. Using Asteroseismology to Calibrate the Physical Parameters of Confirmed Exoplanets and Their Evolved Host Stars[J]. ASTRONOMICAL JOURNAL,2024,168(1).
APA	林文徐,Qian, Sheng-Bang,朱俐颖,廖文萍,&Li, Fu-Xing.(2024).Using Asteroseismology to Calibrate the Physical Parameters of Confirmed Exoplanets and Their Evolved Host Stars.ASTRONOMICAL JOURNAL,168(1).
MLA	林文徐,et al."Using Asteroseismology to Calibrate the Physical Parameters of Confirmed Exoplanets and Their Evolved Host Stars".ASTRONOMICAL JOURNAL 168.1(2024).