Periodicity in quasar redshifts or selection effects?

Name: Work Video:
Duration: 3 min 30 s
Description: Peaks at high redshifts in individual samples of quasars can be explained as due to selection effects. It is concluded that peaks in quasar redshift distribution do not obey any generalformula that can constitute a periodicity, even though individual samples may favour some redshifts of smaller values, viz. z < 1.
D. Basu
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