Physical Sciences: How Significant are the Sharp Peaks in the Frequency Distribution of QSO Redshifts?

Details Physical Sciences: How Significant are the Sharp Peaks in the Frequency Distribution of QSO Redshifts? Physical Sciences: How Significant are the Sharp Peaks in the Frequency Distribution of QSO Redshifts?

Mar 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970natur.225..927w&link_type=abstract

Nature, Volume 225, Issue 5236, pp. 927-928 (1970).

Statistics

2

Scientific paper

RECENT work by Plagemann, Feldman and Gribbin1 seems to show that quasar redshifts are not intrinsic. I take no issue here with the more specific result of the Cambridge group, that there is no significant evidence for periodicity of peaks in the distribution of z (redshift). But, using the same observational material, which was taken from a list by Burbidge and Burbidge2, I find that the well known peak at z = 0.060 cannot be due to chance, although there is some uncertainty of the significance level. On the other hand, the conclusion of Burbidge3 that the peak at z = 1.95 is highly significant is not confirmed. It can be shown that the difference between our result and that of Burbidge is due to the interpretation of the statistics.

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