SIMBAD references

2001AJ....121...21B - Astron. J., 121, 21-30 (2001/January-0)

The distribution of redshifts in new samples of quasi-stellar objects.


Abstract (from CDS):

Two new samples of QSOs have been constructed from recent surveys to test the hypothesis that the redshift distribution of bright QSOs is periodic in log(1+z). The first of these comprises 57 different redshifts among all known close pairs or multiple QSOs with image separations ≤10", and the second consists of 39 QSOs selected through their X-ray emission and their proximity to bright, comparatively nearby active galaxies. The redshift distributions of the samples are found to exhibit distinct peaks with a periodic separation of ∼0.089 in log(1+z) identical to that claimed in earlier samples, but now extended out to higher redshift peaks z=2.63, 3.45, and 4.47, predicted by the formula but never seen before. The periodicity is also seen in a third sample, the 78 QSOs of the 3C and 3CR catalogs. It is present in these three data sets at a high overall significance level (∼10–5) and appears not to be explicable by spectroscopic or similar selection effects. Possible interpretations are briefly discussed.

Abstract Copyright:

Journal keyword(s): Cosmology: Large-Scale Structure of Universe - Galaxies: Quasars: General - Galaxies: Quasars: Emission Lines

CDS comments: T.1 B0172+472 misprint for B0712+472 (CLASS B0712+472), 1148+055 misprint for 1148+0055 (QSO 1148+0055A and B), MG 2016+1127 misprint for 2019+1127 ( MITG J2019+1127). Many B or J missing (some coord. are 1950, some are 2000). T.2 : 39 quasars without designations, not in SIMBAD.

Simbad objects: 151

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