The ratio of optical-to-infrared emission line strengths in AR III as electron density diagnostics for planetary nebulae

Details The ratio of optical-to-infrared emission line strengths in AR III as electron density diagnostics for planetary nebulae The ratio of optical-to-infrared emission line strengths in AR III as electron density diagnostics for planetary nebulae

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...410..426k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 410, no. 1, p. 426-429.

Astronomy and Astrophysics

Astrophysics

9

Electron Density (Concentration), Emission Spectra, Infrared Radiation, Planetary Nebulae, Visible Spectrum, Electron Energy, Electron Impact, Electron Transitions

Scientific paper

The Johnson and Kingston (1990) results are used to derive theoretical line ratios for Ar III, and these are compared with optical and infrared observations of planetary nebulae. It is shown that this approach makes it possible to investigate the accuracy of the atomic data and evaluate the potential usefulness of optical/infrared line ratios in Ar III as electron density diagnostics.

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