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		| Paper: | 
		Massive Pre-Main Sequence Stars in the Young Open Cluster NGC 1893 | 
	 
	
		| Volume: | 
		267, Hot Star Workshop III: the Earliest Stages of Massive Star Birth | 
	 
	
		| Page: | 
		389 | 
	 
	
		| Authors: | 
		Marco, A.; Negueruela, I.; Steele, I. A. | 
	 
	
	
		| Abstract: | 
		We have identified a population of massive pre-main sequence (PMS) stars in the young open cluster NGC 1893. The presence of Herbig AeBe stars in the vicinity of O-type stars likely to be a few Myr old and their co-existence with B-type main sequence objects of later spectral types indicate that massive star formation is still ongoing in NGC 1893 and has been taking place over a relatively long timescale. | 
	 
	
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