Radio sources and environmental effects in E and S0 galaxies

Details Radio sources and environmental effects in E and S0 galaxies Radio sources and environmental effects in E and S0 galaxies

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...189...39v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 189, no. 1-2, Jan. 1988, p. 39-41.

Astronomy and Astrophysics

Astronomy

7

Astronomical Spectroscopy, Elliptical Galaxies, Galactic Nuclei, Galactic Structure, Radio Galaxies, Radio Sources (Astronomy), Density Distribution, Frequency Distribution, Lenticular Bodies, Visible Spectrum

Scientific paper

Samples of elliptical and lenticular galaxies are analyzed to study the effect of the large scale environment, measured through an unbiased estimator, and the effect of the small scale (≡100 kpc) environment of the radio emission. It is found that while the membership of an E or S0 galaxy to a group or a cluster has no effect on the probability to be a radio source, an excess of close companions is present around galaxies with a high radio to optical emission ratio, confirming previous results by Heckman et al. (1985).

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