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Photometric Evidence for Mixing and Diffusion in GC Stars
Published online by Cambridge University Press: 30 March 2016
Abstract
Based on Strömgren uvby CCD photometry, and UVES spectroscopy we present evidence that possibly all globular clusters show large variations in their abundances of nitrogen, aluminium and sodium, which are not only due to internal mixing processes. Furthermore the evidence for radiative levitation among hot horizontal branch stars is briefly discussed.
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- II. Joint Discussions
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- Copyright © Astronomical Society of Pacific 2002