Axisymmetrical Structures of Planetary Nebulae and SN 1987A
Abstract
I summarize some recent models and ideas for the formation of axisymmetrical structures of planetary nebulae and the three rings of SN 1987A, as follows. (a) I review the general role of binary companions, including brown dwarfs and planets. (b) I propose a mechanism for axisymmetrical mass loss on the AGB that may account for the axially symmetric structures of elliptical planetary nebulae and that operates for slowly rotating AGB stars. (c) I propose a model for the formation of the two outer rings of SN 1987A, which is based on the numerical simulation of Soker (1989), and discuss a mechanism for their displacement from the exploding star.
Keywords
Cite
@article{arxiv.astro-ph/9804017,
title = {Axisymmetrical Structures of Planetary Nebulae and SN 1987A},
author = {Noam Soker},
journal= {arXiv preprint arXiv:astro-ph/9804017},
year = {2009}
}
Comments
In the proceedings of the conference Physical Processes in Astrophysical Fluids. Will be published as a special volume of Physics Reports. LATEX, 9 pages,1 figure