The relation between Cerenkov redshift of H-I lines of quasars and the intensity ratio Lyman-alpha/CIV

Details The relation between Cerenkov redshift of H-I lines of quasars and the intensity ratio Lyman-alpha/CIV The relation between Cerenkov redshift of H-I lines of quasars and the intensity ratio Lyman-alpha/CIV

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989acaps...9..218y&link_type=abstract

(Acta Astrophysica Sinica, vol. 9, no. 3, 1989, p. 218-223) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 13, Dec. 1

Astronomy and Astrophysics

Astrophysics

Carbon, Cerenkov Radiation, H Lines, Lyman Alpha Radiation, Quasars, Red Shift, Emission Spectra, H Beta Line, Line Spectra

Scientific paper

In the framework of the Cerenkov line emission theory, the intrinsic relation between the Cerenkov redshift of HI emission lines of quasars and the line intensity ratio I(Ly-alpha)/I(H-beta) is discussed. Neglecting the contributions of HI recombination lines in the outer optically thin zones of quasars, the observed relative shift of the Ly-alpha line with respect to the CIV line, i.e., the Cerenkov redshift, can be used to obtain an estimate of the particle population at the 2nd energy level, Rz = 0.02. For a temperature of 11,000 K, the predicted Cerenkov redshifts of HI Balmer lines and the intensity ratio I(Ly-alpha)/I(H-beta) are then both in good agreement with the observations. This supports the Cerenkov line emission theory.

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