Computation of the atmosphere-less light intensity curve during a total solar eclipse by using Lunar Reconnaissance Orbiter topography data and the DE430 astronomical ephemeris  

作　　者：Yun-Bo Wang Jian-Guo Yan Mao Ye Yong-Zhang Yang Fei Li Jean-Pierre Barriot 

机构地区：[1]State Key Laboratory of InformationEngineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China [2]Geodesy Observatory of Tahiti,University of French Polynesia,BP 6570,98702 Faa,Tahiti,French Polynesia [3]Key Laboratory of Lunar and Deep Space Exploration,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China

出　　处：《Research in Astronomy and Astrophysics》2021年第1期105-118,共14页天文和天体物理学研究（英文版）

基　　金：the National Natural Science Foundation of China(U1831132 and 41804025);grant of Hubei Province Natural Science(2018CFA087);supported by the grant from Key Laboratory of Lunar and Deep Space Exploration,CAS;LIESMARS Special Research Funding;funded through a DAR grant in planetology from the French Space Agency(CNES)。

摘　　要：Observations of the sky irradiation intensity in the visible wavelengths during a solar eclipse permit to model the Sun diameter,a key number to constrain the internal structure of our star.In this paper,we present an algorithm that takes advantage of the precise Moon topography from Lunar Reconnaissance Orbiter to compute,with a high resolution in time,the geometrical part(i.e.top-of-atmosphere,and for a given wavelength)of the sky irradiation at any given location on the Earth during these events.The algorithm is also able to model the Baily’s beads.We give as an application the theoretical computation of the light curve corresponding to the solar eclipse observed at Lakeland(Queensland,North Australia)on 2012 November 13.The application to real data,with the introduction of atmospheric and instrumental passbands,will be considered in a forthcoming paper.

关 键 词：ECLIPSE MOON Sun:fundamental parameters 

分 类 号：P182[天文地球—天文学] P125