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The Improved Orbit Solution and Component Masses of bet LMi
Wang XL(王晓丽)1,2,3; Xia, Fang4; Fu, Yanning4
Source PublicationASTRONOMICAL JOURNAL
2020-09-01
Volume160Issue:3Pages:5
DOI10.3847/1538-3881/aba7bd
Contribution Rank第2完成单位
Indexed BySCI
KeywordBinary stars Fundamental parameters of stars Visual binary stars Spectroscopic binary stars
Abstract

bet LMi is a double-lined visual binary with an orbital period of similar to 39 yr. Via a simultaneous fitting to both astrometric and radial velocity measurements, we give a complete and improved orbit solution with high precision. Then, the component masses are precisely determined as 2.98 0.10Mand 1.92 0.04Mwith a relative precision of similar to 3%, respectively. The orbital parallax is determined to be 19.6 0.2 mas, which is two times more precise than Hipparcos parallax. With the known apparent magnitudes and magnitude difference of the components, we derive the luminosity of the components as 50.7 1.8Land 9.1 4.1L. The estimated radii of the components are 9.4 0.3Rand 3.7 1.5R.

Funding ProjectNational Natural Science Foundation of China[11603072] ; National Natural Science Foundation of China[11727806] ; National Natural Science Foundation of China[11673071]
Funding OrganizationNational Natural Science Foundation of China[11603072, 11727806, 11673071]
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
WOS IDWOS:000565725400001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordICCD SPECKLE OBSERVATIONS ; BINARY STARS ; INTERFEROMETRIC MEASUREMENTS ; ASTROMETRIC MEASUREMENTS ; VISUAL BINARIES ; KITT-PEAK ; RADIAL-VELOCITIES ; WIYN TELESCOPE ; MERATE ; PISCO
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23701
Collection丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
Corresponding AuthorWang XL(王晓丽)
Affiliation1.College of Physics and Electronic Engineering, Qilu Normal University, Jinan, 250200, People's Republic of China
2.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650216, People's Republic of China
4.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang XL,Xia, Fang,Fu, Yanning. The Improved Orbit Solution and Component Masses of bet LMi[J]. ASTRONOMICAL JOURNAL,2020,160(3):5.
APA Wang XL,Xia, Fang,&Fu, Yanning.(2020).The Improved Orbit Solution and Component Masses of bet LMi.ASTRONOMICAL JOURNAL,160(3),5.
MLA Wang XL,et al."The Improved Orbit Solution and Component Masses of bet LMi".ASTRONOMICAL JOURNAL 160.3(2020):5.
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