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Paper: Color and population gradients in globular clusters
Volume: 13, The Formation and Evolution of Star Clusters
Page: 262
Authors: Djorgovski, S.; Piotto, G.; Mallen-Ornelas, G.
Abstract: We present preliminary results from a survey for color and population gradients in globular cluster cores. Color gradients, in the sense of becoming bluer inwards, are always found in post-core-collapse clusters. They seem to be caused by the demise of red giants, and possibly an increased number of blue stragglers. This may be a consequence of stellar interactions during and after the core collapse. No gradients are seen in clusters with King-model morphology.
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