The luminosity function of globular clusters

Details The luminosity function of globular clusters The luminosity function of globular clusters

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...297..361v&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 297, Oct. 15, 1985, p. 361-364.

Astronomy and Astrophysics

Astrophysics

43

Cosmology, Galactic Clusters, Globular Clusters, Luminosity, Normal Density Functions, Red Shift, Virgo Galactic Cluster

Scientific paper

Recent compilations of data on the globular clusters in the Galaxy (Webbink, 1985) and M31 (Crampton et al., 1985) are used to show that the cluster luminosity functions in these two galaxies do not differ significantly. In both of these Local Group galaxies, the cluster luminosity function peaks at M(v) = -7.1. Comparison of this value with the maximum in the M87 globular cluster luminosity function recently observed by van den Bergh, Pritchet, and Grillmair (1985) yields a value of 74 + or - 12 km/s Mpc for the Hubble parameter. Confidence in this result is, however, undermined by the observation that the shape of the M87 globular cluster luminosity function may differ from that for globular clusters in the Local Group.

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