Electron temperatures in planetary nebulae

Details Electron temperatures in planetary nebulae Electron temperatures in planetary nebulae

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...308..322k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 308, Sept. 1, 1986, p. 322-336.

Astronomy and Astrophysics

Astrophysics

97

Electron Energy, Forbidden Transitions, Planetary Nebulae, Spectral Energy Distribution, Helium, Interstellar Extinction, Ionization, Line Spectra, Nitrogen, Oxygen Spectra

Scientific paper

Electron temperatures for 107 planetary nebulae are calculated with the most recent atomic parameters from [O III] or [N II] line intensities or both taken from a variety of sources. A detailed investigation of the dependence of the two temperatures on the nebular excitation and on the O/H ratio is presented. Combination of the [O III] and [N II] data sets shows that the mean ratio of Te[N II]/Te[O III] varies smoothly and strongly as a function of overall nebular excitation.

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