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A Survey of Globular Cluster Velocity Dispersions

Published online by Cambridge University Press:  19 July 2016

Carlton Pryor ,
Robert D. McClure ,
J. M. Fletcher  and
James E. Hesser
Carlton Pryor
Affiliation:
University of Victoria and Vanderbilt University
Robert D. McClure
Affiliation:
Dominion Astrophysical Observatory Hertzberg Institute of Astrophysics
J. M. Fletcher
Affiliation:
Dominion Astrophysical Observatory Hertzberg Institute of Astrophysics
James E. Hesser
Affiliation:
Dominion Astrophysical Observatory Hertzberg Institute of Astrophysics

Extract

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We have used the Dominion Astrophysical Observatory radial velocity spectrometer on the 3.6m Canada-France-Hawaii telescope to obtain radial velocities, accurate to ~0.8 km/s, for ~20 stars in each of nine globular clusters. The stars are generally within three core radii of the cluster center. The cluster names and metallicities (the latter are averages of values in Zinn and West (1984), Pilachowski (1984), and Webbink (1985)) are given in Table I. This sample includes two clusters with cusps in their surface brightness profiles: NGC 6624 and 6681.

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. 661 - 662
Copyright
Copyright © Kluwer 1988 

References

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Pryor, C., McClure, R. D. and Smith, G. H. 1986 Astron. J. 92, in press.Google Scholar
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