• Corpus ID: 14381339

Shaping Planetary Nebulae and Related Objects

  title={Shaping Planetary Nebulae and Related Objects},
  author={Noam Soker},
  journal={arXiv: Astrophysics},
  • N. Soker
  • Published 8 September 2003
  • Physics
  • arXiv: Astrophysics
I review some open questions and other aspects concerning the shaping of planetary nebulae (PNs) and related objects. I attribute the non-spherical structures of PNs to binary companions, stellar or substellar. I emphasize the role of jets (or collimated fast wind: CFW) blown by an accreting stellar companion in shaping PNs and some related objects, and discuss the limited role of magnetic fields. I speculate that some stars which are leaving the asymptotic giant branch, i.e., becoming hotter… 

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AGBs, Post-AGBs and the Shaping of Planetary Nebulae
During the last decades, observations, mostly with the Hubble Space Telescope, have revealed that round Planetary Nebulae were the exception rather than rule. A huge variety of features are observed,
Binary black holes at the core of galaxy clusters
The large-scale nebular pattern of a superwind binary in an eccentric orbit
The roughly spherical outer regions and aspherical inner regions of protoplanetary nebulae — here imaged by ALMA — are explained in terms of an embedded binary system with stars on eccentric orbits.


Post-AGB Objects as a Phase of Stellar Evolution
Preface. Acknowledgements. Organizing Committees. List of Participants. Conference Photo. Introductory Review. Photo-planetary Nebulae as a Phase of Stellar Evolution S. Kwok. Part I: Surveys and
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however (for it was the literal soul of the life of the Redeemer, John xv. io), is the peculiar token of fellowship with the Redeemer. That love to God (what is meant here is not God’s love to men)