A. P. Milone
Published 2012-11-04Version 1
The infrared channel of the Wide-Field Camera 3 on the Hubble Space Telescope revealed multiple main sequences of very low-mass stars in the globular clusters NGC 2808 and Omega Centauri. In this paper I summarize the observational facts and provide a possible interpretation.
Comments: 2 pages, 1 figure; Invited talk presented at Special Session 1 "Origin and Complexity of Massive Star Clusters" at IAU General Assembly XXVIII, Beijing 2012. To appear in Highlights of Astronomy
MgAl burning chain in Omega Centauri
The Mg-K anti-correlation in Omega Centauri
Chemical Compositions of Field and Globular Cluster RR~Lyrae Stars: II. omega Centauri
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