A comparison of distance scales for early-type galaxies

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Astrometry, Astronomical Catalogs, Cosmology, Galactic Structure, Distance, Elliptical Galaxies, Error Analysis, Lenticular Bodies, Luminosity, Radial Velocity, Scaling Laws

Scientific paper

The distance scales of elliptical and lenticular galaxies derived from several photometric and colorimetric distance indicators by Michard and by Sandage and Visvanathan have been intercompared and reduced to the scale previously derived by de Vaucouleurs and Olson from the velocity dispersion indicator via the revised Faber-Jackson relation. The standard errors of distance moduli derived from the different indicators range from 0.44 to 0.65 mag after reduction to the same scale. A general catalog of weighted mean distance moduli of 424 early-type galaxies based on one or more indicators is included.

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