AGBs, Post-AGBs and the Shaping of Planetary Nebulae

  title={AGBs, Post-AGBs and the Shaping of Planetary Nebulae},
  author={E. Lagadec},
  • E. Lagadec
  • Published 17 September 2018
  • Physics
  • Galaxies
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, such as jets, discs, tori, showing that the ejection of material is not due to isotropic radiation pressure on a spherical shell and that more physics is involved. This shaping process certainly occur early in the evolution of these low and intermediate mass stars and must leave imprints in the… 

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