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ESO - European Organisation for Astronomical Research in the Southern Hemisphere Karl-Schwarzschild-Straße 2 85748 Garching bei München, Germany http://www.eso.org
Contact Mr Richard Hook +49 89 32006655
Company logo of ESO - European Organisation for Astronomical Research in the Southern Hemisphere
ESO - European Organisation for Astronomical Research in the Southern Hemisphere

The Brightest Stars Don't Live Alone

VLT finds most stellar heavyweights come in interacting pairs

(PresseBox) (Garching bei München, )
A new study using ESO'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. The results are published in the 27 July 2012 issue of the journal Science.

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