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		| Paper: | 
		Comparing P Cygni's Spectroscopic Variability with that of other B-type Supergiants | 
	 
	
		| Volume: | 
		233, P Cygni 2000: 400 Years of Progress | 
	 
	
		| Page: | 
		149 | 
	 
	
		| Authors: | 
		Rivinius, T. | 
	 
	
	
		| Abstract: | 
		The spectral variability of OBA super- and hypergiants is reviewed, based on the monitorings conducted by the Landessternwarte Heidelberg Hot Star Group. The datasets of a sample of more than two dozen stars cover typically a couple of months and a spectral range from 3500 to 8600 A, with a resolving power of 20000. Using these data sets, a scheme of the variability, changing as a function of the position in the Hertzsprung-Russell diagram, is proposed. The spectral variability of P Cygni is compared to these results. | 
	 
	
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