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View Full Version : Brown Dwarf Lived Inside Another Star



Fraser
2006-Aug-04, 02:30 PM
ESO's Very Large Telescope has uncovered an interesting stellar pair: a hot white dwarf and a brown dwarf orbiting each other every two hours. In the past, the heavier star was actually a bloated red giant, and the brown dwarf orbited inside its envelope. The friction of moving through the red giant caused the brown dwarf to spiral in to its current position. Finally, the star collapsed down to a white dwarf, leaving the two objects in this embrace.

Read the full blog entry (http://www.universetoday.com/2006/08/04/brown-dwarf-lived-inside-another-star/)

Duane
2006-Aug-05, 06:07 PM
It is amazing to me that the brown dwarf sdidn't pick up mass from the envelope of the red giant while it was engulfed. I recognize the envelope would be pretty tenuous, but still. Anyone know why?