The 'L-alpha/FeII problem' - Solved by fluorescence?

Details The 'L-alpha/FeII problem' - Solved by fluorescence? The 'L-alpha/FeII problem' - Solved by fluorescence?

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.229p...1p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 229, Nov. 1, 1987, p. 1P-5P.

Astronomy and Astrophysics

Astronomy

32

Emission Spectra, Fluorescence, Galactic Nuclei, Galactic Radiation, Iron, Lyman Alpha Radiation, Abundance, Astronomical Models, Fine Structure, Magnesium, Optical Thickness

Scientific paper

The models of Fe II line emission from active galactic nuclei calculated by Wills, Netzer & Wills predict too little Fe II emission. This can be accounted for by the Lα fluorescence process of Johansson & Jordan which both strengthens the Fe II emission above that predicted by collisional excitation, the only process included in the models, and somewhat weakens the Lα line.

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