Extragalactic globular clusters. II - The M31 globular cluster system

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 1991 Australia English Publisher:American Astronomical SocietyJournal:The Astrophysical Journal, volume 370, page 495 (issn: 0004-637X, eissn: 1538-4357,

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Authors: Huchra, J. P.; Brodie, J. P.; Kent, S. M.;

doi: 10.1086/169836

handle: 1959.3/454873

Extragalactic globular clusters. II - The M31 globular cluster system

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Abstract

Metallicities for 150 globular clusters associated with M31 are derived using the strengths of six absorption features in the cluster-integrated spectra. The properties of the M31 cluster system are very similar to those of the Galactic system. No dependence of metallicity on cluster luminosity is found. The number distribution as a function of metallicity is consistent with that of Galactic clusters. There is evidence for a weak metallicity gradient as a function of projected radius. The mean metallicity Fe/H is equal to -1.2, slightly higher than the mean for the Galactic system. 48 refs.

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Australia

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Swinburne University of Technology
Australia

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