N III line emission in planetary nebulae - Continuum fluorescence

Details N III line emission in planetary nebulae - Continuum fluorescence N III line emission in planetary nebulae - Continuum fluorescence

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...389l..63f&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 389, April 20, 1992, p. L63-L65.

Astronomy and Astrophysics

Astrophysics

20

Emission Spectra, Fluorescence, Line Spectra, Nitrogen Ions, Planetary Nebulae, Stellar Atmospheres, Atmospheric Models, Continuous Radiation, Stellar Luminosity

Scientific paper

It is theorized that 'Bowen' N III emission lines are excited by direct continuum fluorescence. Photoionization model calculations with an improved treatment of line-continuum fluorescence are presented. The predicted intensity of N III 4634 is in good agreement with observations. This line can be used as a direct probe of the stellar continuum in the approximately 374-A region and can provide an important test of the next generation of model stellar atmospheres.

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