Hydrodynamics of Antisymmetric Nebulae

Details Hydrodynamics of Antisymmetric Nebulae Hydrodynamics of Antisymmetric Nebulae

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..313..419i&link_type=abstract

Asymmetrical Planetary Nebulae III: Winds, Structure and the Thunderbird, Proceedings of the conference held 28 July - 1 August

Astronomy and Astrophysics

Astronomy

Scientific paper

Balick's `generalized interacting stellar winds' model posits that the bipolar shape of most PNe is due to the interaction between a very fast tenuous outflow, and a disk-shaped denser atmosphere left over from an earlier slow phase of mass loss. Analytical and numerical work shows that this mechanism can explain cylindrically symmetric nebulae. However, many circumstellar nebulae have a `point-symmetric' shape. I demonstrate that these can be easily reproduced by a two-wind model in which the confining disk is warped.

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