The puzzling MgAl anticorrelation in globular-cluster red giants: primordial plus deep mixing scenario?

P. A. Denissenkov, G. S. Da Costa, J. E. Norris +1

Star-to-star abundance variations of C, N, O, Na and Al in globular-cluster red giants have been recently supplemented by the finding that [Mg/Fe] is depleted in stars with extreme…