Vampire stars

The universe is a diverse place, and many stars are quite unlike the Sun. An international team has used the VLT to study what are known as O-type stars, which have very high temperature, mass, and brightness. These stars have short and violent lives and play a key role in the evolution of galaxies. They are also linked to extreme phenomena such as gamma-ray bursts and “vampire stars,” where a smaller companion star sucks matter off the surface of its larger neighbor.

http://hubblesite.org/newscenter/archive/releases/2012/33/full/

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