What are the percentages of systems that have x number of stars in them?
What I have found thus far is something like:
- Single Star Sytems = 69%
- Double Star Systems = ~10%
- Triple Star Systems = <20%
- Quadruple Star Systems = ???
- Quintuple Star Systems = ???
- Sextuple Star Systems = ???
- Septuple Star Systems = ???
Also... Is there any way to get these percentages for systems that have primaries that are Giants (more than 2 Solar Masses) Major Stars (0.5 to 2 Solar Masses), and Minor Stars (0.5 Solar Masses... red dwarfs)
I have found an article that says...
Giant Stars = 80% have companions
Major Stars = 50% have companions
Minor Stars = 25% have companions
Sources:
http://www.space.com/1995-astronomers-wrong-stars-single.html
http://boards.straightdope.com/sdmb/showthread.php?t=499261
http://www.skyandtelescope.com/astronomy-news/surprise-most-star-systems-are-single/