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		| Paper: | 
		New Surveys for Companions to E and S0 Galaxies | 
	 
	
		| Volume: | 
		327, Satellites and Tidal Streams | 
	 
	
		| Page: | 
		178 | 
	 
	
		| Authors: | 
		Madore, B.F.; Freedman, W.L. | 
	 
	
	
		| Abstract: | 
		Two new surveys for physical companions orbiting elliptical and lenticular galaxies are introduced. The first is an electronic survey for radial velocity confirmed companions to the so-called “isolated elliptical” sample of Bothun & Sullivan (1977) undertaken using the NASA/IPAC Extragalactic Database (NED), and the second is a complete survey of all S0 galaxies in the Revised Shapley-Ames Catalog (Sandage & Tammann 1981), combining both visual inspection/classification of apparent companions followed up with radial velocity searches again using NED. | 
	 
	
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