Auger process following 1s-photoionization: O III lines

Details Auger process following 1s-photoionization: O III lines Auger process following 1s-photoionization: O III lines

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...282..315p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 282, no. 1, p. 315-317

Astronomy and Astrophysics

Astrophysics

9

Auger Effect, Electron Bombardment, Electron Transitions, Line Spectra, Oxygen Ions, Photoionization, Space Plasmas, Active Galactic Nuclei, Electron Decay Rate, Electron Diffusion, Resonance Scattering

Scientific paper

Radiationless decay rates of the (1s(-1))2P and 4P O II terms are calculated and compared with recent experimental results of Caldwell and Krause. In order to obtain the partial widths we analyzed the resonant behavior of the scattering matrix of the O(2+) + e(-) diffusion for an electron incident energy around 500 eV. Assuming a thin plasma, exposed to a high energy photon source, we consider 1s-photoionization followed by Auger decays responsible for O III excited states production. We considered this double process balanced by radiative decays. Some O III line relative intensities are therefore estimated in astrophysical scenarios that may be found in active galactic nuclei.

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