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.
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)。
