Statistics – Computation
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344l..57p&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 344, Sept. 15, 1989, p. L57-L60.
Statistics
Computation
28
Astronomical Photometry, Computational Astrophysics, Galactic Clusters, Astronomical Models, Calibrating, Elliptical Galaxies, Luminosity
Scientific paper
CCD photometry of highly luminous elliptical galaxies in the Virgo and Fornax clusters and velocity dispersion data are used to study the L-delta and L-delta-Sigma relations for these galaxies. It is shown that the dispersion in these relations is 0.44 and 0.28 mag for the L-delta and L-delta-Sigma relations, respectively. The distance to the Virgo and Fornax clusters are estimated using these relations and corresponding distance uncertainties for single galaxies. For the Virgo cluster core, distances of 16.7 + or - 2.7 and 14.4 + or - 1.6 Mpc are obtained from L-delta and L-delta-Sigma relations, respectively. The distance to the Fornax cluster is found to be 13.5 + or - 2.2 Mpc.
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