Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90.2027p&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 90, Oct. 1985, p. 2027-2032. Research supported by the University of Victoria and NS
Astronomy and Astrophysics
Astronomy
25
Elliptical Galaxies, Globular Clusters, Star Distribution, Stellar Luminosity, Data Reduction, Novae
Scientific paper
The central area of the elliptical galaxy NGC 3379 has been observed for a total of five hours using a CCD detector at the prime focus of the Canada-France-Hawaii 3.6-m telescope. A distinct concentration of star-like images with a radial surface density gradient similar to that of the starlight in NGC 3379 is seen to surround this galaxy. The total globular cluster population of NGC 3379 is found to be 140±35. The peak of the NGC 3379 cluster luminosity function occurs at B(max) = 23.0±0.3, implying a distance of 6.8±0.8 Mpc if the luminosity function of NGC 3379 globulars is similar to that of Local Group globular clusters. Comparison of globular cluster systems surrounding M87, NGC 3379, and Local Group galaxies is marginally consistent with the hypothesis that the peak luminosity of globular cluster luminosity functions is a standard candle. In an Appendix, the authors report on an unsuccessful search for novae in NGC 3379.
Pritchet Chris J.
van den Bergh Sidney
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