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Photometry of Galactic globular clusters of the Disk system

Published online by Cambridge University Press:  07 August 2017

T. Richtler ,
E.K. Grebel  and
W. Seggewiss
T. Richtler
Affiliation:
Sternwarte der Universität Bonn, Germany
E.K. Grebel
Affiliation:
Sternwarte der Universität Bonn, Germany
W. Seggewiss
Affiliation:
Sternwarte der Universität Bonn, Germany

Extract

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The ages of the galactic globular clusters belonging to the disk subsystem are still widely unknown. By considering the HB morphology Richtler et al. (1991) were led to the conjecture that some of the disk clusters may resemble the populous intermediate-age clusters in the Magellanic Clouds, but no main-sequence photometry was published at that time. We now present B,V photometry for the clusters NGC 6496, 6624, and 6637 (M69) which in all cases show the turn-off point and allow reliable age determinations.

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 149: The Stellar populations of Galaxies , 1992 , pp. 477
Copyright
Copyright © Kluwer 

References

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Richtler, T., de Boer, K.S., Vallenari, A., Seggewiss, W. (1991) in: IAU Symp. No. 148, The Magellanic Clouds, Haynes, R. and Milne, D. (eds.) Kluwer, Dordrecht, p. 198.Google Scholar