Sat 28 Jul, 2012 07:25 pm - Yes, but convection brings some of the metals from core to surface eventually. (If it didn't, we'd never see their lines in a stellar spectrum.) Might such convection increase enough in... (view)
Sat 28 Jul, 2012 12:54 pm - I just saw a speculation that stellar winds contribute more heavier-than-helium (i.e., "metals") nuclei to the interstellar medium than supernovae contribute.
Consider the mass losses... (view)
