Jump to content


Star Chains in (globular) clusters

Recommended Posts

Often, as I gaze at "professional" quality images of (globular) star clusters, I am struck by the appearance of "chains" of stars. Are these real or simply a chance line-up? I see (at least in the 50s!), this was even a topic of academic papers. Since then, and with the advent of computer simulation perhaps, I suspect we now have a more definitive answer... Anyone? :D

Link to comment
Share on other sites

No idea but this would be a great 'Ask Alan' for Astronomy Now...

An Astrofest lecture suggested, if I remember, that one dynamic effect in Globs was a tendency for the black holes (from high mass star collapse) to fall into the centre and that low mass stars would rise and be ejected in a kind of large scale 'evaporation.'


Link to comment
Share on other sites

It's just that your eye/brain is good at picking out chains like this. There is no physical significance to them. Olly is right though about the mass segregation -- heavy things end up in the middle and light things get kicked out. It happens in all mass systems; globular clusters, open clusters, galaxy clusters...

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.