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Published 1991 | Published
Book Section - Chapter Open

Color and population gradients in globular clusters

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.

Additional Information

© 1991 Astronomical Society of the Pacific. Provided by the NASA Astrophysics Data System. This work was supported in part by an Alfred P. Sloan Foundation fellowship and NASA grant NAG5-1173 (SD). GP thanks ESO for hospitality and support during the course of this work.

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