Asymmetric Planetary Nebulae VI

the conference summary

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution


The Asymmetric Planetary Nebulae conference series, now in its sixth edition, aims to resolve the shaping mechanism of PN. Eighty percent of PN have non spherical shapes and during this conference the last nails in the coffin of single stars models for non spherical PN have been put. Binary theories abound but observational tests are lagging. The highlight of APN6 has been the arrival of ALMA which allowed us to measure magnetic fields on AGB stars systematically. AGB star halos, with their spiral patterns are now connected to PPN and PN halos. New models give us hope that binary parameters may be decoded from these images. In the post-AGB and pre-PN evolutionary phase the naked post-AGB stars present us with an increasingly curious puzzle as complexity is added to the phenomenologies of objects in transition between the AGB and the central star regimes. Binary central stars continue to be detected, including the first detection of longer period binaries, however a binary fraction is still at large. Hydro models of binary interactions still fail to give us results, if we make an exception for the wider types of binary interactions. More promise is shown by analytical considerations and models driven by simpler, 1D simulations such as those carried out with the code MESA. Large community efforts have given us more homogeneous datasets which will yield results for years to come. Examples are the ChanPlaN and HerPlaNe collaborations that have been working with the Chandra and Herschel space telescopes, respectively. Finally, the new kid in town is the intermediate-luminosity optical transient, a new class of events that may have contributed to forming several peculiar PN and pre-PN.
Original languageEnglish
Title of host publicationAsymmetrical Planetary Nebulae VI
Subtitle of host publicationproceedings
EditorsC. Morisset, G. Delgado-Inglada, S. Torres-Peimbert
Place of PublicationRiviera Maya, Mexico
PublisherProceedings of the Asymmetrical Planetary Nebulae VI conference
Number of pages13
Publication statusPublished - 2014
EventAsymmetrical Planetary Nebulae (6th : 2013) - Riviera Maya, Mexico
Duration: 4 Nov 20138 Nov 2013


ConferenceAsymmetrical Planetary Nebulae (6th : 2013)
CityRiviera Maya, Mexico

Bibliographical note

Author emailed citation. 15/5/15 wy


  • stars: planetary nebulae
  • planetary nebulae: general

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    De Marco, O. (2014). Asymmetric Planetary Nebulae VI: the conference summary. In C. Morisset, G. Delgado-Inglada, & S. Torres-Peimbert (Eds.), Asymmetrical Planetary Nebulae VI: proceedings (pp. 1-13). Riviera Maya, Mexico: Proceedings of the Asymmetrical Planetary Nebulae VI conference.