A two-dimensional sheet of galaxies between two southern voids

Details A two-dimensional sheet of galaxies between two southern voids A two-dimensional sheet of galaxies between two southern voids

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...229...75m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 229, no. 1, March 1990, p. 75-79.

Astronomy and Astrophysics

Astronomy

7

Galactic Clusters, Red Shift, Distribution Functions, Sky Surveys (Astronomy)

Scientific paper

The question of examining real data for possible interconnections between voids has prompted the discovery of a striking two-dimensional sheet of galaxies (including NGC and ESO galaxies) forming the interface to voids in Eridanus and Sculptor. A void is defined in terms of its emptiness, and it is noted that structures revealed using all available redshifts, south of declination -17.5 deg, agree with those found in controlled surveys, that is voids are void of all galaxies, regardless of luminosity, size, or type. Using casement displays, a significant overdensity, or wall, of galaxies, some 650 km/s thick, approximately 2000 x 2000 km/s wide is found forming the interface to Sculptor and Eridanus.

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