Measurement of the He II radiation field in planetary nebulae through Bowen fluorescence

Details Measurement of the He II radiation field in planetary nebulae through Bowen fluorescence Measurement of the He II radiation field in planetary nebulae through Bowen fluorescence

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phys...35..778b&link_type=abstract

(Colloquium on Atomic Spectra and Oscillator Strengths for Astrophysics and Fusion Research, 2nd, Toledo, OH, Aug. 1986) Physica

Astronomy and Astrophysics

Astrophysics

5

Fluorescence, Helium, Planetary Nebulae, Radiation Distribution, Line Spectra, Oxygen, Resonance Lines, Spectrum Analysis

Scientific paper

Excitation of O III by He II is treated for sources over a useful range
of densities to give accurate predictions of Bowen/non-Bowen line
ratios. These are applied to recent observations of planetary nebulae to
show that Bowen excitation increases monotonically with excitation
class, and to deduce other important consequences.

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