Electron temperatures of astrophysical plasmas from the forbidden O III line ratio

Details Electron temperatures of astrophysical plasmas from the forbidden O III line ratio Electron temperatures of astrophysical plasmas from the forbidden O III line ratio

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...147..331a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 147, no. 2, June 1985, p. 331-334.

Astronomy and Astrophysics

Astrophysics

10

Cosmic Plasma, Electron Energy, Line Spectra, Oxygen Spectra, Active Galactic Nuclei, Metastable Atoms, Oxygen Ions, Photoionization

Scientific paper

It is shown that the introduction of K-shell photoionization of O0, followed by Auger effect, as a population mechanism of O2+ metastable levels can modify the behaviour of ROIII = [O III]λ4363/λλ(5007+4959) intensity ratio with electron temperature. The results indicate that one should be cautious in using this line ratio in temperature determinations for the emission line region of active galactic nuclei.

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