Vampire Star
Brightest stars in pairs
Artist's impression of a vampire star and its victim.
ScienceDaily (July 26, 2012) A new study using the European Southern Observatory's Very Large Telescope (VLT) has shown that most very bright high-mass stars, which drive the evolution of galaxies, do not live alone. Almost three quarters of these stars are found to have a close companion star, far more than previously thought. Surprisingly most of these pairs are also experiencing disruptive interactions, such as mass transfer from one star to the other, and about one third are even expected to ultimately merge to form a single star.
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