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		| Paper: | 
		The Orion Trapezium:  Physical  Parameters and Multiplicity of  Bright Components | 
	 
	
		| Volume: | 
		510, Stars: From Collapse to Collapse | 
	 
	
		| Page: | 
		207 | 
	 
	
		| Authors: | 
		Vitrichenko, E. A.; Bondar, N. I.; Bychkova, L. V.; Bychkov, V. D. | 
	 
	
	
		| Abstract: | 
		Analysis of energy distributions in the  range of 0.36–18 μm and high-resolution spectra showed that the brightest stars of the Orion Trapezium are multiple systems, in which the primaries are  young massive OB stars, spectral  types of secondary components are late K–M stars and/or dust provide IR-radiation. In the Θ1Ori C system, A0 stars were found escaping it in opposite directions.  Parameters  of the components,  elements of their orbits, and evolutionary status were determined. | 
	 
	
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