Integrated BVR photometry of halo globular clusters in M31.

Details Integrated BVR photometry of halo globular clusters in M31. Integrated BVR photometry of halo globular clusters in M31.

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103..824r&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 103, March 1992, p. 824-839. Research supported by NSERC.

Other

30

Andromeda Galaxy, Charge Coupled Devices, Color-Magnitude Diagram, Galactic Structure, Globular Clusters, Astronomical Catalogs, Astronomical Photometry, Halos, Milky Way Galaxy, Stellar Luminosity

Scientific paper

New BVR integrated magnitudes and color indices for 75 globular clusters and cluster candidates in the halo of M31 are presented. The aperture growth curves, image morphologies, and locations in the (B - V, V - R) two-color plane are used along with other information in the literature (radial velocities, degree of resolution into stars) to help identify background galaxies and other types of contaminating objects, and to remove them from the cluster sample. The 'cleaned' sample is used along with previously published material to construct a preliminary luminosity function for the halo clusters in M31. It is argued that the peak frequency or 'turnover' point for the M31 globulars may be as much as about 0.2 mag more luminous than for the Milky Way halo clusters.

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