The Distribution of Redshifts in New Samples of Quasi-stellar Objects

  title={The Distribution of Redshifts in New Samples of Quasi-stellar Objects},
  author={Geoffrey R. Burbidge and William M. Napier},
  journal={The Astronomical Journal},
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… 

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