Evidence for the location of quasars in superclusters

Details Evidence for the location of quasars in superclusters Evidence for the location of quasars in superclusters

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....95....7o&link_type=abstract

Astronomy and Astrophysics, vol. 95, no. 1, Feb. 1981, p. 7-13.

Astronomy and Astrophysics

Astrophysics

54

Galactic Clusters, Quasars, Red Shift, Stellar Evolution, Galactic Structure, Lyman Alpha Radiation, Stellar Models

Scientific paper

It is noted that 12 pairs of neighboring quasars have been found whose redshifts are so nearly equal that they have a high probability of being physically associated. If their redshifts are cosmological (as is assumed here) and if the Hubble constant is assumed to be 100 km/sec-Mpc, the majority have separations between 5 and 30 Mpc. The 'superstructures' providing the association must therefore have dimensions of at least this order, which is that of superclusters. It is noted that two of the quasar pairs have redshifts of 2.84 and 3.15, respectively, which shows that large superclusters exist at z equal to approximately 3. Attention is given to the fact that the data are compatible with the assumption that all quasars lie in superclusters.

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