View Full Version : Biggest Stars Often Have Companions

2005-Sep-08, 08:26 AM
SUMMARY: New research from the Hubble Space Telescope indicates that the majority of large dying Wolf-Rayat stars have a smaller companion star orbiting nearby. This discovery will help astronomers understand how these unique stars evolve in the Universe, and could provide new a new method to estimate their size. Wolf-Rayat stars start out at least 20 times the mass of the Sun, last only a few million years, and then explode as supernovae. It's now believed that these stars and their companions transfer mass as they orbit one another.

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