Color correlations between paired galaxies - The Holmberg effect

Details Color correlations between paired galaxies - The Holmberg effect Color correlations between paired galaxies - The Holmberg effect

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984azh....61..625d&link_type=abstract

(Astronomicheskii Zhurnal, vol. 61, July-Aug. 1984, p. 625-633) Soviet Astronomy (ISSN 0038-5301), vol. 28, July-Aug. 1984, p. 3

Astronomy and Astrophysics

Astronomy

7

Color, Elliptical Galaxies, Galactic Radiation, Spiral Galaxies, Ubv Spectra, Abundance, Astronomical Spectroscopy, Electrophotometry, Galactic Evolution, Galactic Structure, Stellar Evolution

Scientific paper

The colors of paired galaxies are analyzed, using the U, B, V photometry of Tomov (1973). It is shown that in most of the double elliptical (EE) and spiral (SS) galaxies, the components have integrated corrected color indices with a color differential of no less than 0.10 from B to V. A similarity in metal abundances is used to explain the observed blue color match of EE components. It is suggested that the colors of ES pairs may be correlated, and that the color match observed in most SS galaxies may be the result of periodic bursts of star formation occurring simultaneously in both components.

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