Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.112...93z&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 112, no. 1, May 1985, p. 93-110.
Astronomy and Astrophysics
Astrophysics
7
Cosmology, Emission Spectra, Quasars, Red Shift, Distribution Functions, Frequency Response, Histograms, Regression Analysis
Scientific paper
The influence of the selection effect in emission-line identification on the redshift distribution of QSOs, as well as the origin of QSOs are studied. If the redshift of the QSOs is assumed to be cosmological, the redshift distribution function can be calculated in the framework of the standard model of the universe. The computation results are found to be in good agreement with the observations, especially for optically selected QSOs. The computational distribution coincides almost completely with the observational distribution and the correlation coefficients between them are higher than 0.95. The results show that the peaks and dips in the redshift distribution are compatible with cosmological principle and also offer a new method to determine the cosmological deceleration parameter.
Dai He-Jun
Deng Zu-Gang
Zhou Yanhua
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