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

doi:10.1088/1674-4527/ad392b

	Photometric Analysis for Asteroid (81) Terpsichore using Convex Inversion and Phase Function Fitting Methods
	Wang, Ao 4; Wang XB(王晓彬)1,2,3; Xu XY(徐肖云)1,2,3; Qin, Longhua 4; Gao, Quangui 4; Li, Huaizhen 4; Xiao, Yong 4; Zhao, Hairu 4
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	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
DOI	10.1088/1674-4527/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
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关键词	LIGHTCURVE INVERSION ; OPTIMIZATION METHODS ; CURVES ; SPARSE ; SHAPE ; G(1)
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:001249940800001
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]
内容类型	期刊论文
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
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).