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Astron. Astrophys. 347, 455-472 (1999)

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The metal-rich globular clusters of the Milky Way

F. Heitsch 1 and T. Richtler 2

1 Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany
2 Sternwarte der Universität Bonn, Auf dem Hügel 71, D-53115 Bonn, Germany

Received 3 March 1999 / Accepted 19 April 1999

Abstract

We present new (V,V-I)-photometry of the metal-rich globular clusters NGC 5927, 6316, 6342, 6441 and 6760. The clusters show differential reddening up to [FORMULA] mag, for which the CMDs are corrected via extinction maps. There are hints of a variation in the extinction law. Two different ways to determine the parameters metallicity, reddening and distance lead to consistent results. The metallicities of the clusters range between [FORMULA] dex and the absolute reddening between [FORMULA] mag. Taking the differential reddening into account leads to slightly increased distances. From the resulting parameters we conclude that the usual halo-disk-distinction in the system of globular clusters seems questionable.

Key words: Galaxy: center – Galaxy: globular clusters: general – Galaxy: structure

Send offprint requests to: F. Heitsch

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© European Southern Observatory (ESO) 1999

Online publication: June 30, 1999
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