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Planetary Nebulae from Miras?

Published online by Cambridge University Press:  07 August 2017

Patricia A. Whitelock
Affiliation:
South African Astronomical Observatory, P.O. Box 9, Observatory 7935, South Africa
Michael W. Feast
Affiliation:
Institute of Astronomy, Cambridge University, Madingley Road, Cambridge CB3 0HA, England

Abstract

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The properties of large amplitude AGB variables (Miras) are reviewed with particular emphasis on their relevance for evolution into PNe. We concentrate on recent observations in the LMC and Galactic Bulge. The available evidence is consistent with the idea that most Miras evolve into PNe and that most old disk stars go through the Mira and PNe phases. However, there are some suggestions that the most metal rich stars in the Galactic Bulge go through neither phase or do so very rapidly. The lifetime of a typical Bulge Mira must be more than 105 yrs and Miras outnumber PNe in the Bulge by about 10 to 1.

Information

Type
IV. Planetary Nebulae Connection: Evolution from the AGB
Copyright
Copyright © Kluwer 1993