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Photometric Analysis for Asteroid (81) Terpsichore using Convex Inversion and Phase Function Fitting Methods

文献类型：期刊论文

作者Wang, Ao4; Wang XB(王晓彬)1,2,3; Xu XY(徐肖云)1,2,3; Qin, Longhua4; Gao, Quangui4; Li, Huaizhen4; Xiao, Yong4; Zhao, Hairu4
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2024-06-01
卷号24期号:6
关键词asteroids: general minor planets asteroids: individual (Terpsichore) techniques: photometric
ISSN号1674-4527
DOI10.1088/1674-4527/ad392b
产权排序第2完成单位
文献子类Article
英文摘要The shapes and rotation states (periods and pole orientations) of main-belt asteroids are important for understanding their formation and evolution. In order to obtain sufficient photometric data covering different apparitions for asteroid (81) Terpsichore, ground-based photometric observations in 2020 and 2021 were carried out. By combining published and newly obtained photometric data, we calculated the shape and spin parameters for (81) Terpsichore using the convex inversion method. With this method, we have derived a best fitted pole orientation- ( 22.2 +/-(3.3 degrees)( 3.1) , 17.5 +/-( 5.5) (10.8 degrees) ) with a spin period of 10.94 +/- (0.01) (0.01 )h. Based on the derived convex shape of (81) Terpsichore, we have fitted the H, G 1, G 2 phase function using the calibrated TESS data and Gaia data after accounting for the lightcurve amplitude correction. As a result, we have derived its absolute magnitude H = 8.68 +/- (0.19) (0.22) mag with corresponding phase function parameters G 1 = 0.82 +/- (0.10) (0.09) and G 2 = 0.02 +/- (0.02) (0.03) .
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA
WOS关键词LIGHTCURVE INVERSION ; OPTIMIZATION METHODS ; CURVES ; SPARSE ; SHAPE ; G(1)
资助项目Science Research Foundation of Yunnan Education Department of China[2020J0649]; Natural Science Foundation of Yunnan Province[202101AU070010]; Hundred Talents Program of Yuxi[2019-003]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001249940800001
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
资助机构Science Research Foundation of Yunnan Education Department of China[2020J0649] ; Natural Science Foundation of Yunnan Province[202101AU070010] ; Hundred Talents Program of Yuxi[2019-003]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27411]  
专题云南天文台_系外行星研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.University of Chinese Academy of Sciences, Beijing 100049, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China;
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China;
4.Department of Physics, Yuxi Normal University, Yuxi 653100, China; wangao@yxnu.edu.cn;
推荐引用方式
GB/T 7714		 Wang, Ao,Wang XB,Xu XY,et al. Photometric Analysis for Asteroid (81) Terpsichore using Convex Inversion and Phase Function Fitting Methods[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(6).
APA Wang, Ao.,王晓彬.,徐肖云.,Qin, Longhua.,Gao, Quangui.,...&Zhao, Hairu.(2024).Photometric Analysis for Asteroid (81) Terpsichore using Convex Inversion and Phase Function Fitting Methods.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(6).
MLA Wang, Ao,et al."Photometric Analysis for Asteroid (81) Terpsichore using Convex Inversion and Phase Function Fitting Methods".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.6(2024).

入库方式： OAI收割

来源：云南天文台

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