PDA

View Full Version : Listener Question: Trinary Star Systems



herb900
2009-Aug-04, 01:45 AM
It has been mentioned several times on the show that 3 body interactions often result in one of the bodies being flung off and away from the other two. If this is a typical interaction, what conditions allow for a trinary star system to be established and maintain a stable system.

Great Show and thanks in advance,

Brett Herbeck
Rock Falls, IL

robross
2009-Aug-04, 07:42 PM
It has been mentioned several times on the show that 3 body interactions often result in one of the bodies being flung off and away from the other two. If this is a typical interaction, what conditions allow for a trinary star system to be established and maintain a stable system.

Great Show and thanks in advance,

Brett Herbeck
Rock Falls, IL

You'll most likely get a lot more responses if you post this same question in this forum:
http://www.bautforum.com/space-astronomy-questions-answers/

For my part, I can suggest we know of at least one (possible) trinary system, A/B/C Centauri:

http://en.wikipedia.org/wiki/Alpha_Centauri

However, the jury is still out on whether Proxima is actually orbiting AB. But if it is, it's a pretty huge orbit - Proxima is about .21 light-years away from AB, and orbits once per 100,000 to 500,000 years.



Rob