|   | 
				
					
	
		  | 
	 
	
		| Paper: | 
		A search for hydrogen lasers in MWC 349 from the KAO | 
	 
	
		| Volume: | 
		73, Airborne Astronomy Symposium on the Galactic Ecosystem: From Gas to Stars to Dust | 
	 
	
		| Page: | 
		271 | 
	 
	
		| Authors: | 
		Strelnitski, Vladimir S.; Smith, Howard A.; Haas, Michael R.; Colgan, Sean W. J.; Erickson, Edwin F.; Geis, Norbert; Hollenbach, David J.; Townes, Charles H. | 
	 
	
	
		| Abstract: | 
		We report the first observations of H15 alpha (169.4114 microns) and H10 alpha (52.5349 microns) in MWC 349 from the KAO. We obtain a 3 sigma upper limit of 2 x 10-19 W/sq cm for H15 alpha and a flux of 3.6 +/- 1.3 x 10-19 W/sq for H10 alpha. These fluxes are consistent with an appreciable excess due to laser amplification down to quantum numbers n approx. equals 10. | 
	 
	
		| 
			
			
		 | 
	 
	
		  | 
	 
 
					 
				 | 
				  |