Periodicity versus selection effects in the redshift distribution of QSOs

Details Periodicity versus selection effects in the redshift distribution of QSOs Periodicity versus selection effects in the redshift distribution of QSOs

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001an....322..229b&link_type=abstract

Astronomische Nachrichten, vol. 322, no. 4, p. 229-231

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Periodicities and selection effects in the redshift (z) distribution of QSOs have been debated for a long time in the literature. Here we show that peaks and troughs in the redshift distribution of three new samples, claimed to demonstrate the existence of a periodicity, can be interpreted in terms of known selection effects. This analysis confirms earlier findings that the presence of such selection effects seriously weakens any suggestion for periodicity of the form delta(l) n (1 + z) = constant.

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