Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...459..496s&link_type=abstract
Astrophysical Journal v.459, p.496
Astronomy and Astrophysics
Astronomy
6
Cosmology: Theory, Galaxies: Quasars: General, Surveys
Scientific paper
The large-redshift compete quasar sample of Warren et al. (hereafter WHO), is analyzed by statistically efficient procedures that provide objective predictions of directly observable quantities. The predictions of the nonevolutionary and nonparametric chronometric cosmology (CC) are consistent with the observations, while those of Friedman-Lemaitre cosmology with q_{0 }= 0 = A (FLC) show significant deviations that agree with the unadjusted predictions of CC for the predictions of FLC. In particular, the observed and predicted values of V/Vm and of the mean redshift of the sample are determined and found to agree within the frame of CC within 1.1 , while they differ in the frame of FLC by 3.3-3.9 a by amounts that agree with the predictions of CC for these FLC predictions. In particular, these results confirm the main conclusion of WHO, i.e., the need for strong evolution in the frame of FLC, but they indicate also that such evolution may well be an artifact of the FLC model.
Nicoll J. F.
Segal I. E.
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