Relative intensities of hydrogen lines in the spectra of quasars and the nuclei of Seyfert galaxies

Details Relative intensities of hydrogen lines in the spectra of quasars and the nuclei of Seyfert galaxies Relative intensities of hydrogen lines in the spectra of quasars and the nuclei of Seyfert galaxies

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983afz....19...55k&link_type=abstract

(Astrofizika, vol. 19, Jan.-Mar. 1983, p. 55-64) Astrophysics (ISSN 0571-7132), vol. 19, no. 1, July 1983, p. 32-38. Translation

Astronomy and Astrophysics

Astrophysics

3

Galactic Nuclei, H Lines, Hydrogen Clouds, Line Spectra, Quasars, Seyfert Galaxies, Galactic Evolution, Interstellar Gas, Lyman Alpha Radiation, Photoionization

Scientific paper

Relative intensities of the hydrogen lines have been calculated on the basis of the theory of luminosity in the moving envelopes for the case of collisional excitations and ionizations. The comparison of the theoretical ratios of Lα/Hα and Pα/Hβ with the observational ones for quasars and Seyfert galaxies has been made. It was shown that small ratios of Lα/Hα and their relatively small dispersion may be explained by the approaching of the state of the radiative gas to the total thermalization state.

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