Detection of the globular-cluster population around NGC 7814

Details Detection of the globular-cluster population around NGC 7814 Detection of the globular-cluster population around NGC 7814

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104.1220b&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, no. 682, p. 1220-1229.

Astronomy and Astrophysics

Astronomy

8

Galactic Evolution, Globular Clusters, Star Distribution, Statistical Analysis, Radial Distribution, Stellar Luminosity

Scientific paper

The statistical detection of 120 +/- 25 globular clusters in fields surrounding the edge-on S03 galaxy NGC 7814 is reported. Counts of objects are made to V of 24.5 and reach at least the peak of the globular-cluster luminosity function (GCLF). The bulge of NGC 7814 is of moderate luminosity and is highly flattened with an axial ratio of 0.48. Counts made from 0.5-5.0-arcmin radius in concentric rings of 0.5-arcmin width exhibit excess objects relative to the background in each annulus. Correcting for incompleteness in both magnitude and areal coverage yields a total cluster population of 498 +/- 164 within this region. At an assumed distance of (m-M) = 30.48, the specific frequency of globulars is 7.6 +/- 3.2.

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