|   | 
				
					
	
		  | 
	 
	
		| Paper: | 
		Wide triplets of galaxies | 
	 
	
		| Volume: | 
		209, Small Galaxy Groups, IAU Colloquium 174 | 
	 
	
		| Page: | 
		373 | 
	 
	
		| Authors: | 
		Chernin, A. D.; Dolgachev, V. P.; Domozhilova, L. M. | 
	 
	
	
		| Abstract: | 
		Triple systems of galaxies with the typical mass ~10 h13 M odot and crossing time about the Hubble time provide evidence for ongoing collapse on the space scale ~1 Mpc. This is confirmed by a set of computer simulations with the use of free-fall models. | 
	 
	
		| 
			
			
		 | 
	 
	
		  | 
	 
 
					 
				 | 
				  |