Lebedev acceleration and comparison of different photometric models in the inversion of lightcurves for asteroids

doi:10.1016/j.pss.2017.12.001

	Lebedev acceleration and comparison of different photometric models in the inversion of lightcurves for asteroids
	Lu, Xiao-Ping 1,3; Huang, Xiang-Jie 1; Ip, Wing-Huen 1,2; Hsia, Chi-Hao 1
刊名	PLANETARY AND SPACE SCIENCE
	2018-04-01
卷号	153 页码:1-10
关键词	Cellinoid Lightcurves Asteroids Lebedev Photometric
ISSN号	0032-0633
DOI	10.1016/j.pss.2017.12.001
通讯作者	Lu, Xiao-Ping(xplu@must.edu.mo)
英文摘要	In the lightcurve inversion process where asteroid's physical parameters such as rotational period, pole orientation and overall shape are searched, the numerical calculations of the synthetic photometric brightness based on different shape models are frequently implemented. Lebedev quadrature is an efficient method to numerically calculate the surface integral on the unit sphere. By transforming the surface integral on the Cellinoid shape model to that on the unit sphere, the lightcurve inversion process based on the Cellinoid shape model can be remarkably accelerated. Furthermore, Matlab codes of the lightcurve inversion process based on the Cellinoid shape model are available on Github for free downloading. The photometric models, i.e., the scattering laws, also play an important role in the lightcurve inversion process, although the shape variations of asteroids dominate the morphologies of the lightcurves. Derived from the radiative transfer theory, the Hapke model can describe the light reflectance behaviors from the viewpoint of physics, while there are also many empirical models in numerical applications. Numerical simulations are implemented for the comparison of the Hapke model with the other three numerical models, including the Lommel-Seeliger, Minnaert, and Kaasalainen models. The results show that the numerical models with simple function expressions can fit well with the synthetic lightcurves generated based on the Hapke model; this good fit implies that they can be adopted in the lightcurve inversion process for asteroids to improve the numerical efficiency and derive similar results to those of the Hapke model.
WOS关键词	CELLINOID SHAPE MODEL ; ATMOSPHERELESS BODIES ; OPTIMIZATION METHODS ; MISSION ; SURFACE ; GAIA
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000428484700001
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/22433]
专题	中国科学院紫金山天文台
通讯作者	Lu, Xiao-Ping
作者单位	1.Macau Univ Sci & Technol, Ave Wai Long, Taipa, Macao, Peoples R China 2.Natl Cent Univ, Inst Astron, Taoyuan, Taiwan 3.Chinese Acad Sci, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Lu, Xiao-Ping,Huang, Xiang-Jie,Ip, Wing-Huen,et al. Lebedev acceleration and comparison of different photometric models in the inversion of lightcurves for asteroids[J]. PLANETARY AND SPACE SCIENCE,2018,153:1-10.
APA	Lu, Xiao-Ping,Huang, Xiang-Jie,Ip, Wing-Huen,&Hsia, Chi-Hao.(2018).Lebedev acceleration and comparison of different photometric models in the inversion of lightcurves for asteroids.PLANETARY AND SPACE SCIENCE,153,1-10.
MLA	Lu, Xiao-Ping,et al."Lebedev acceleration and comparison of different photometric models in the inversion of lightcurves for asteroids".PLANETARY AND SPACE SCIENCE 153(2018):1-10.