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by JXP
Mon Sep 14, 2009 6:21 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Center of Omega Centauri (2009 Sept 14)
Replies: 16
Views: 2951

Re: Center of Omega Centauri (2009 Sept 14)

This is a fantastic photo. My question is: are the prominent red and blue stars likely cluster members? We were always taught that globular clusters were pop II stars. Given the age of the cluster, both red giants and bright blue stars would have to be either acquired recently or formed as mergers. ...