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Additional Evidence and Possible Interpretation of Angular Redshift Anisotropy

1976; Oxford University Press; Volume: 177; Issue: 1 Linguagem: Inglês

10.1093/mnras/177.1.191

1365-2966

Timo Jaakkola, Hiroshi Karoji, G. Le Denmat, M. Moles, Laurent Nottale, J. P. Vigier, Jean-Claude Pecker,

Gamma-ray bursts and supernovae

An attempt is performed to see whether the anisotropic angular distribution of redshifts discovered by Rubin, Ford & Rubin for Sc I galaxies (denoted RFR effect) exists for other types of sources. The data used consists of : (a) brightest cluster galaxies; (b) those for which supernovae serve as distance indicators; (c) Seyfert-type galaxies. The statistical analysis reveals in all three cases a similar anisotropy at intermediate distances as that previously found. A modification of the RFR borderline, analysed in particular with a complete sample of radiogalaxies, shows that this anisotropy can be interpreted either as an enhancement of the luminosity, or as an excess of redshift, when galaxies are seen through intervening clusters of galaxies: an effect evidently connected with anomalous redshifts recently discussed in the literature.