The continuum emission from planetary nebulae

Details The continuum emission from planetary nebulae The continuum emission from planetary nebulae

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...331..523v&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 331, Aug. 1, 1988, p. 523-531.

Astronomy and Astrophysics

Astrophysics

2

Continuous Spectra, Emission Spectra, Planetary Nebulae, Stellar Radiation, Stellar Temperature, Black Body Radiation, Hydrogen, Optical Thickness, Photoionization, Radiant Flux Density, Radiative Transfer

Scientific paper

Theoretical continuum emission from planetary nebulae has been calculated by photoionization models, assuming a blackbody spectrum for the stellar radiation, characterized by the stellar temperature TS and by the ionization parameter U. A grid of models has been constructed for 2 ≤ TS/104 ≤ 15, 3×10-4 ≤ U ≤ 3×10-2, and for hydrogen density nH = 103, 104, and 105cm-3. Results for fluxes in B and V filters and at λ = 3250, 4800, 5450, and 7900 Å, are presented allowing for an easy estimate of the stellar continuum from the observed total (nebular plus stellar) continuum.

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