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A preliminary survey of collapsed cores in globular clusters

Djorgovski, S. and King, Ivan R. (1986) A preliminary survey of collapsed cores in globular clusters. Astrophysical Journal, 305 . L61-L65. ISSN 0004-637X. doi:10.1086/184685.

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This is a preliminary report on surface photometry of the major fraction of known globular clusters, to see which of them show the signs of a collapsed core. The authors find more than 20 examples, or one-fifth of the total. Core classifications are given for all clusters examined. The fraction of collapsed-core clusters may be an index of how long a cluster takes to reexpand after collapse.

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Djorgovski, S.0000-0002-0603-3087
Additional Information:© 1986 The American Astronomical Society. Received 1986 February 14; accepted 1986 March 19. We wish to acknowledge the assistance of Abraham Oren, Howard Penner, and especially of Carl Vuosalo, in the reductions. We also thank the team of Jonathan Grindlay, Haldan Cohn, Phyllis Lugger, and Paul Hertz for exchanging preliminary results and calling our attention to the collapsed core in NGC 6284; and we thank Gerald Kron for providing a magnetic tape of the results of Kron, Hewitt, and Wasserman (1984). This work was supported by contract NASA5-28086.
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Subject Keywords:clusters: globular—stars: stellar dynamics
Record Number:CaltechAUTHORS:20190731-152940078
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97564
Deposited By: Tony Diaz
Deposited On:31 Jul 2019 22:50
Last Modified:16 Nov 2021 17:32

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