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

doi:10.1088/1674-4527/ad392b

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	Photometric Analysis for Asteroid (81) Terpsichore using Convex Inversion and Phase Function Fitting Methods
	Wang, Ao 1; Wang XB(王晓彬)2,3,4 ; Xu XY(徐肖云)2,3,4 ; Qin, Longhua 1; Gao, Quangui 1; Li, Huaizhen 1; Xiao, Yong 1; Zhao, Hairu 1
发表期刊	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2024-06-01
卷号	24 期号:6
DOI	10.1088/1674-4527/ad392b
产权排序	第2完成单位
收录类别	SCI
关键词	asteroids: general minor planets asteroids: individual (Terpsichore) techniques: photometric
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) .
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]
项目资助者	Science Research Foundation of Yunnan Education Department of China[2020J0649] ; Natural Science Foundation of Yunnan Province[202101AU070010] ; Hundred Talents Program of Yuxi[2019-003]
语种	英语
学科领域	天文学 ; 太阳与太阳系
文章类型	Article
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
出版地	20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA
ISSN	1674-4527
URL	查看原文
WOS记录号	WOS:001249940800001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	LIGHTCURVE INVERSION ; OPTIMIZATION METHODS ; CURVES ; SPARSE ; SHAPE ; G(1)
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/114a53/27411
专题	系外行星研究组中国科学院天体结构与演化重点实验室
作者单位	1.Department of Physics, Yuxi Normal University, Yuxi 653100, China; [email protected]; 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China; 4.University of Chinese Academy of Sciences, Beijing 100049, China
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).

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