典型文献
Penumbra lunar eclipse observations reveal anomalous thermal performance of Lunakhod 2 reflectors
文献摘要：
As the signal reflected by the corner-cube reflector arrays is very weak and easily submerged during the full moon,we analyze the influence of the thermal effect of corner-cube reflector arrays on the intensity of lunar laser ranging echo.Laser ranging measurements during the penumbra lunar eclipse verify suspected thermal deformation in the Lunakhod 2 reflectors.Signal levels vary over two orders of magnitude as the penumbra eclipse progresses.This can be explained by the change in the dihedral angle of the corner-cube reflectors caused by the temperature.The results show that when the dihedral angle errors reach 1",the energy is reduced by 100 times compared with the ideal corner-cube reflector.In the experiment,our findings suggest that when the corner-cube reflector arrays enter the penumbra of the earth,the effective echo signal level which reaches 0.18 photons/s far exceeds the historical level of the full moon.However,11 minutes after the penumbra lunar eclipse,the effective echo rate of Lunakhod 2 will drop two orders of magnitude.The mechanism can explain the acute signal deficit observed at full moon.
文献关键词：
中图分类号：
作者姓名：
Tian-Quan Gao;Cai-Shi Zhang;Hong-Chao Zhao;Li-Xiang Zhou;Xian-Lin Wu;Hsienchi Yeh;Ming Li
作者机构：
MOE Key Laboratory of TianQin Mission,TianQin Research Center for Gravitational Physics&School of Physics and Astronomy,Frontiers Science Center for TianQin,CNSA Research Center for Gravitational Waves,Sun Yat-sen University(Zhuhai Campus),Zhuhai 519082,China
文献出处：
引用格式：
[1]Tian-Quan Gao;Cai-Shi Zhang;Hong-Chao Zhao;Li-Xiang Zhou;Xian-Lin Wu;Hsienchi Yeh;Ming Li-.Penumbra lunar eclipse observations reveal anomalous thermal performance of Lunakhod 2 reflectors)[J].中国物理B（英文版）,2022(05):241-247
A类：
Lunakhod
B类：
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AB值：
0.473141
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