Isolated galaxies

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Sep 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...216..694h&link_type=abstract

Astrophysical Journal, Part 1, vol. 216, Sept. 15, 1977, p. 694-697.

Astronomy and Astrophysics

Astrophysics

37

Galactic Clusters, Galactic Radiation, Galactic Rotation, Galaxies, Red Shift, Classifications, Galactic Evolution, Radial Velocity, Spatial Distribution, Statistical Analysis, Tables (Data), Velocity Distribution

Scientific paper

A search is made for isolated galaxies by using the statistical sample of 'field' galaxies of Turner and Gott (1976). Only 39 of the 350 Turner-Gott field galaxies do not have companions between 14 and 15.7 mag within a 45-arcmin radius. These 39 galaxies are, on the average, nearer than the remainder of the sample; two-thirds of them appear to be associated with nearby de Vaucouleurs groups of galaxies, which are clustered on angular scales much larger than that searched by Turner and Gott. The remaining 12 galaxies constitute only 1% of the total sample (1088) studied by Turner and Gott, and should be studied observationally to compare their properties with clustered galaxies. There is little observational evidence at present for a significant population of isolated galaxies.

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