Other
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103..800b&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 103, March 1992, p. 800-814, 1035-1039. Research supported by NSERC.
Other
31
Astronomical Photometry, Charge Coupled Devices, Galactic Structure, Globular Clusters, Halos, Elliptical Galaxies, Metallicity, Milky Way Galaxy, Stellar Luminosity, Virgo Galactic Cluster
Scientific paper
Profile fitting CCD photometry in B and V for the globular cluster system (GCS) in the Sa galaxy NGC 4594 was performed. The existence of a populous GCS, with a specific frequency of 2 +/-1 is confirmed. This value is in agreement with the specific frequencies found for the GCSs of other Sa/Sb galaxies and those ellipticals located in small groups. The NGC 4594 GCS is less centrally concentrated than the halo light, and the innermost parts of the GCS do not seem to reflect the flattening displayed by the halo light. The globular clusters are bluer than the halo light by about 0.2 mag, which suggests that the NGC 4594 GCS is older than the rest of the halo. A mean metallicity for the NGC 4594 NCS of 0.81 +/-0.05 is inferred, a value higher than that found in the Milky Way and M31 but consistent with metallicities inferred for the GCSs of giant ellipticals.
Bridges Terry James
Hanes David A.
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