The reality of anomalous redshifts in the spectra of some QSOs and its implications.

Details The reality of anomalous redshifts in the spectra of some QSOs and its implications. The reality of anomalous redshifts in the spectra of some QSOs and its implications.

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...309....9b&link_type=abstract

Astronomy and Astrophysics, v.309, p.9-22

Astronomy and Astrophysics

Astrophysics

36

Scientific paper

The evidence for the physical association of close pairs involving bright QSOs with large redshifts and bright nearby galaxies with small redshifts, is reviewed and, in Table 1, a list of the best cases is given. It is shown that in a series of statistical studies using catalogs of QSOs and catalogs of galaxies, very strong correlations of high redshift radio QSOs have been found successively with (o) [a.] The Shapley Ames Catalog of the brightest galaxies. Here the correlation is with powerful radio QSOs with S>=9Jy (0.4GHz). The result is significant at the 7-10σ level. (o) [b.] The Bright Galaxy Catalog (z<=0.05). Here the QSO sample is dominated by radio emitting QSOs, largely identified from the 3CR, Molonglo, Parkes, and 4C radio catalogs. (o) [c.] The galaxies in the Lick Catalog (m<~17, z<~0.2). Again the sample of QSOs is a radio sample. (o) [d.] The IRAS galaxy catalogs, where some fraction of the galaxies may have z up to 0.4, and where a few galaxies may be identical in position with the QSOs, but where the larger fraction have much smaller redshifts than the QSOs. Again the QSO sample is a radio sample. (o) [e.] Finally strong correlations on scales <~10' have been found between optically bright, high redshift radio loud QSOs and the diffuse X-ray emission seen by ROSAT. Bartelmann et al. (1994) believe that this diffuse X-ray emission is due to galaxy clusters at redshifts significantly less than the observed redshifts of the QSOs.

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