Modeling emission lines of 8 northern planetary nebulae
نویسندگان
چکیده
In order to constrain the nebular density distribution and velocity field, we model nebular lines profiles obtained at very high spectral resolution. The method and computer code applied to 2–3 nebular lines were described in earlier publications. In the present work we analyse 4–11 spectral lines observed simultaneously with the spectrometer ELODIE (R=42 000) for 8 planetary nebulae. For five analyzed nebulae with a [WC]-type nucleus, we found highly broadened profiles implying possible turbulent motions.
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Absolute spectrophotometry of northern compact planetary nebulae ⋆
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