THE UNUSUAL BRIGHTNESS IN THE ULTRAVIOLET OF CERTAIN T TAURITYPE STARS
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UNAM, Observatorio Astronómico Nacional, CD MEXICO, DF, MEX
Abstract
An observational survey on the Tonantzintla Observatory on the groups of emission-line dwarf stars associated with the Orion Nebula and the nebulous cluster NGC 2264 was carried out. The observational material consists of a series of three exposures sligh