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HST Observations of the Globular Cluster M4

Published online by Cambridge University Press:  25 May 2016

G. G. Fahlman ,
H.B. Richer ,
R.I. Ibata ,
N.C. Ivanans ,
G. Mandushev ,
J.E. Hesser ,
P.B. Stetson ,
M. A. Wood ,
D.A. Vandenberg  and
C. Pryor
...Show all authors
G. G. Fahlman
Affiliation:
Department of Geophysics and Astronomy, University of British Columbia, Vancouver, B.C., Canada V6T 1Z4
H.B. Richer
Affiliation:
Department of Geophysics and Astronomy, University of British Columbia.
R.I. Ibata
Affiliation:
Department of Geophysics and Astronomy, University of British Columbia.
N.C. Ivanans
Affiliation:
Department of Geophysics and Astronomy, University of British Columbia.
G. Mandushev
Affiliation:
Department of Geophysics and Astronomy, University of British Columbia.
J.E. Hesser
Affiliation:
Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council.
P.B. Stetson
Affiliation:
Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council.
M. A. Wood
Affiliation:
Department of Physics and Space Science, Florida Institute of Technology
D.A. Vandenberg
Affiliation:
Department of Physics and Astronomy, University of Victoria.
C. Pryor
Affiliation:
Department of Physics and Astronomy, Rutgers University.
W.E. Harris
Affiliation:
Department of Physics and Astronomy, McMaster University.
H.E. Bond
Affiliation:
Space telescope Science Institute.
M. Bolte
Affiliation:
Lick Observatory, University of California.
R.A. Bell
Affiliation:
Department of Astronomy, University of Maryland.

Abstract

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The WFPC2 aboard the Hubble Space Telescope has been used to obtain deep images in three fields at different radial positions in the nearest Globular cluster, M4 (NGC 6121). In this paper, we discuss the white dwarf cooling sequence and show how the dynamical structure of the cluster will affect their cumulative distribution function. We also present the first discussion of our observations of the faint cluster main sequence stars.

Type
New Observations with HST
Information
Symposium - International Astronomical Union , Volume 174: Dynamical Evolution of Stars Clusters , 1996 , pp. 39 - 48
Copyright
Copyright © Kluwer 1996 

References

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