Blue and visual photometry of the Rubin et al. (1976) sample of faint galaxies

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Photometry, Celestial Mechanics, Local Group (Astronomy), Spiral Galaxies, Diameters, Electrophotometry, Magnitude

Scientific paper

Blue and visual multiaperture photoelectric photometry of 112 faint spiral galaxies from the list of Rubin et al. (1976) is presented. Total galaxy magnitudes for an aperture/diameter ratio of 1.0, according to the precepts of Graham (1976) are compared with the photographic magnitudes of the Zwicky et al. (1961-1968) Catalogue of Galaxies and Clusters of Galaxies. From a reanalysis for the motion of the Local Group, it is found that use of the new galaxy magnitudes increases the difference between the motion vector derived from Rubin et al. and the motions derived from other samples of galaxies and that implied by the anisotropy of the cosmic background radiation.

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