Selection effect in identification of spectral lines and evolution of quasars

Details Selection effect in identification of spectral lines and evolution of quasars Selection effect in identification of spectral lines and evolution of quasars

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987sssmp..30.1188d&link_type=abstract

Scientia Sinica, Series A - Mathematical, Physical, Astronomical and Technical Sciences (ISSN 0253-5831), vol. 30, Nov. 1987, p.

Statistics

Computation

Emission Spectra, Line Spectra, Quasars, Red Shift, Stellar Evolution, Stellar Luminosity, Astronomical Models, Computational Astrophysics, Cosmology, Universe

Scientific paper

The results obtained from the analyses of selection effects in the identification of emission lines of quasars presented in previous papers are used to determine the evolutionary property of quasars. The samples consist of the quasars with an absolute magnitude less than certain values selected from surveys with the similar limiting apparent magnitude. It is found that the density of quasars evolves according to the power law rho = rho(0)(1 + z) exp 6.5 + or - 1.

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