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Galaxies 2018, 6(3), 99; https://doi.org/10.3390/galaxies6030099

AGBs, Post-AGBs and the Shaping of Planetary Nebulae

Observatoire de la Côte d’Azur, Laboratoire Lagrange, Université Côte d’Azur, Nice 06304, France
Received: 31 July 2018 / Revised: 28 August 2018 / Accepted: 29 August 2018 / Published: 17 September 2018
(This article belongs to the Special Issue Asymmetric Planetary Nebulae VII)
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Abstract

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 evolutionary stages prior the PN phase. Thanks to news instruments on the most advanced telescopes (e.g., the VLTI, SPHERE/VLT and ALMA), high angular resolution observations are revolutionising our view of the ejection of gas and dust during the AGB and post-AGB phases. In this review I will present the newest results concerning the mass loss from AGB stars, post-AGB stars and related objects. View Full-Text
Keywords: AGB stars; post-AGB stars; planetary nebulae AGB stars; post-AGB stars; planetary nebulae
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Lagadec, E. AGBs, Post-AGBs and the Shaping of Planetary Nebulae. Galaxies 2018, 6, 99.

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