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		| Paper: | 
		Critical Complements: Progress on the Orbit of T Mon | 
	 
	
		| Volume: | 
		203, The Impact of Large-Scale Surveys on Pulsating Star Research, IAU Colloquium 176 | 
	 
	
		| Page: | 
		246 | 
	 
	
		| Authors: | 
		Evans, N. R.; Carpenter, K.; Robinson, R.; Massa, D.; Wahlgren, G. M.; Vinkó, J.; Szabados, L. | 
	 
	
	
		| Abstract: | 
		A preliminary orbit has been derived for the high luminosity, 27-d classical Cepheid T Mon. Velocities for the hot companion have been measured from an HST GHRS spectrum and 3 IUE spectra. The companion velocities are inconsistent with binary orbital motion and it is likely that the companion is itself a short period binary. The HST spectrum also shows that the companion is a chemically peculiar star, probably magnetic. | 
	 
	
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