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astro-ph1999
A Paradigm Lost: New Theories for Aspherical PNe
Adam Frank
Theoretical Models for the shaping of PNe are reviewed in light of new high resolution images. The new data indicate the purely hydrodynamic interacting stellar winds model can not…
astro-ph1999
Ambipolar Diffusion in YSO Jets
Adam Frank, Thomas A. Gardiner, Guy Delemarter +2
We address the issue of ambipolar diffusion in Herbig-Haro jets. The current consensus holds that these jets are launched and collimated via MHD forces. Observations have, however,…