1999/12/09 by Adam Frank, Frank, Adam
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #Astrophysics and Star Formation Studies #Epistemology #FOS: Physical sciences #Philosophy #Physics #Stellar, planetary, and galactic studies #Theoretical physics #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9912191
published in arXiv (Cornell University) (Cornell University) · 10 pages, To appear in Asymmetrical Planetary Nebulae II, ASP Conference Series, J.H. Kastner, N. Soker, & S. Rappaport, eds
arxiv created 1999/12/09 · openalex publication_date 1999/12/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 recover the full variety of shapes and kinematics. New models, some speculative, others more firmly grounded are discussed. In particular, accretion disks and magnetic fields are identified as two of the most promising avenues of future research. Outstanding issues such as jet formation by PNe disks and dynamo activity in P-AGB stars remain to studied. Finally, new simulations of the Egg Nebula are presented as an example of a ``paleontological'' study designed to recover the history of an individual object.