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New Main-Sequence Luminosity Functions for Globular Clusters

Published online by Cambridge University Press:  19 July 2016

Robert D. McClure
Affiliation:
Dominion Astrophysical Observatory
Peter B. Stetson
Affiliation:
Dominion Astrophysical Observatory
James E. Hesser
Affiliation:
Dominion Astrophysical Observatory
Graham H. Smith
Affiliation:
Dominion Astrophysical Observatory
William E. Harris
Affiliation:
McMaster University
Don A. VandenBerg
Affiliation:
University of Victoria

Extract

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We report new results from a program which is aimed at obtaining deep CCD photometry for a sample of relatively nearby globular clusters having a wide range of metallicities. The CCD cameras on the CFHT 3.6 m, CTIO 4 m and KPNO 4 m telescopes have been used over the past 4 years to obtain deep exposures in regions of a number of clusters. In order to avoid the severest crowding, all of our observations have been obtained at distances of greater than ~ 5 core radii from the cluster centers. The images have been analysed by using the DAOPHOT point-spread-function fitting routines.

Type
Chapter VII. Poster Papers on Harlow Shapley and Globular Clusters in the Milky Way
Copyright
Copyright © Kluwer 1988 

References

REFERENCES

McClure, R. D., VandenBerg, D. A., Smith, G. H., Fahlman, G. C. Richer, H. B., Hesser, J. E., Harris, W. E., Stetson, P. B. and Bell, R. A. 1986 Astrophys. J. Letters 307, L49.Google Scholar
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Webbink, R. F. 1985 in IAU Symposium No. 113, Dynamics of Star Clusters, J. Goodman and Hut, P., eds., Reidel, Dorgrecht, p. 541.Google Scholar
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