Astronomy assignment 2 - Essay Example

1. Mass transfer or overflow – a process that could have occurred in a close binary system where one high-mass star beginning the end of its life expands and sheds off its outer gas to the other, originally a low-mass star, as a result of the latter’s gravitational pull. The originally low-mass star grows in size and becomes a high-mass star (Heggie & Hut 2003). Thus, Blue Stragglers have live longer than the usual high-mass star. 2. Collision theory – Collision could occur between single-binary or binary-binary stars encounters in a cluster which will produce a single body which will have a mass twice or more than that of the turn-off mass (Heggie & Hut2003.

Bennett, Jeffrey and Megan Donahue, Nicholas Schneider and Mark Voit. The Cosmic Perspective, Fifth Edition. http://www.coursesmart.com/mycoursesmart?page=0&__myxmlid=9780321542632#X2ludGVybmFsX0Jvb2tJbmZvQWpheFBhbmVsP3BhZ2U9JnhtbGlkPTk3ODAzMjE1NDI2MzI= , pp 536, 566,