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Are planetary nebulae derived from multiple evolutionary scenarios?

Published online by Cambridge University Press:  30 August 2012

David J. Frew  and
Quentin A. Parker
David J. Frew
Affiliation:
1Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia email: [email protected] Macquarie University Research Centre in Astronomy, Astrophysics & Astrophotonics
Quentin A. Parker
Affiliation:
1Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia email: [email protected] Macquarie University Research Centre in Astronomy, Astrophysics & Astrophotonics Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia
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Abstract

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Our understanding of planetary nebulae has been significantly enhanced as a result of several recent large surveys (Parker et al., these proceedings). These new discoveries suggest that the ‘PN phenomenon’ is in fact more heterogeneous than previously envisaged. Even after the careful elimination of mimics from Galactic PN catalogues, there remains a surprising diversity in the population of PNe and especially their central stars. Indeed, several evolutionary scenarios are implicated in the formation of objects presently catalogued as PNe. We provide a summary of these evolutionary pathways and give examples of each. Eventually, a full census of local PNe can be used to confront both stellar evolution theory and population synthesis models.

Keywords

Planetary nebulae: generalstars: AGB and post-AGBstars: evolutionsurveys
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S283: Planetary Nebulae: An Eye to the Future , July 2011 , pp. 192 - 195
Copyright
Copyright © International Astronomical Union 2012

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