Interpretation of the distribution of quasars over redshifts in the framework of modern cosmological models

Details Interpretation of the distribution of quasars over redshifts in the framework of modern cosmological models Interpretation of the distribution of quasars over redshifts in the framework of modern cosmological models

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004kfnt...20..359c&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, vol. 20, no. 4, p. 359-365

Mathematics

Logic

Scientific paper

The summary of results of numerous investigations obtained by various authors from observations indicate that the distribution of the mean number density of quasars nQSO over the redshift z is nonmonotonic and has the maximum at z≈ 2.2...2.5. We show that such character of the distribution nQSO(z) finds its explanation in the framework of standard cosmological scenario for large scale structure formation from primordial matter density fluctuations under the influence of the gravitational instability, in cosmological model with the energy density of vacuum ΩΛ ≈ 0.7 and matter density ΩM≈ 0.3. In this case quasars are considered as an early short stage in the evolution of massive galaxies with the mass M˜(1...3)\cdot{10}11 M&sun;.

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