Comparison of different radiation transfer treatments in planetary nebulae

Details Comparison of different radiation transfer treatments in planetary nebulae Comparison of different radiation transfer treatments in planetary nebulae

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...200...51b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 200, no. 1-2, July 1988, p. 51-57.

Astronomy and Astrophysics

Astrophysics

4

Emission Spectra, Line Spectra, Planetary Nebulae, Radiative Transfer, Electron Density (Concentration), H Beta Line, Radiation Distribution, Temperature Dependence

Scientific paper

A method is described which makes it possible to treat accurately the radiation transfer in planetary nebulae for cases of intermediate optical thickness, where a neglect of the diffuse radiation field or its treatment in the 'on the spot approximation' produces substantial errors in the calculated line strengths. The results for different model nebulae are compared. In particular, it is shown how various density distributions affect the results. It is found that large density gradients considerably change the temperature and ionization structure within the nebula.

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