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The Structure of Collapsed Cluster Cores

Published online by Cambridge University Press:  19 July 2016

Phyllis M. Lugger ,
Haldan Cohn ,
Jonathan E. Grindlay ,
Charles D. Bailyn  and
Paul Hertz
Phyllis M. Lugger
Affiliation:
Indiana University
Haldan Cohn
Affiliation:
Indiana University
Jonathan E. Grindlay
Affiliation:
Harvard University
Charles D. Bailyn
Affiliation:
Harvard University
Paul Hertz
Affiliation:
E. O. Hulburt Center for Space Research, NRL

Abstract

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In order to test the prediction that many Galactic globular clusters have undergone core collapse (Lightman 1982, Cohn and Hut 1984) and should therefore have central surface brightness cusps, we have obtained UBVR CCD frames of the cores of 72 clusters. We present and analyze U-band surface brightness profiles for three clusters: one “control cluster” with a normal flat core profile — NGC 6388 — and two with central power law cusps — NGC 6624 and M15 (NGC 7078).

Type
Chapter X. Poster Papers on Formation and Evolution of Globular Clusters
Information
Symposium - International Astronomical Union , Volume 126: The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies , 1988 , pp. 657 - 658
Copyright
Copyright © Kluwer 1988