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		| Paper: | 
		Thermal Emission Indicatrix for Rough Planetary Surfaces at Arbitrary Heating/Observing Geometry | 
	 
	
		| Volume: | 
		196, Thermal Emission Spectroscopy and Analysis of Dust, Disks, and Regoliths | 
	 
	
		| Page: | 
		221 | 
	 
	
		| Authors: | 
		Shkuratov, Yu.; Stankevich, D.; Sitko, M. L.; Sprague, A. L. | 
	 
	
	
		| Abstract: | 
		A new model of the effects of shadowing on the brightness of rough Gaussian surfaces is developed to describe thermal emission observations of atmosphereless celestial bodies. A comparison with real data for the Moon by Saari et al. (1972) was made. A good agreement between the theoretical and experimental data was found. The comparison have shown that the lunar-relief characteristic slope on the scale of forming the thermal indicatrix (i.e. a few decimeters) is about 30 degrees. | 
	 
	
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