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Untangling the History of M31 with Planetary Nebulae
Published online by Cambridge University Press: 27 October 2016
Abstract
Recent studies of planetary nebulae and deep color-magnitude diagrams in M 31 have unveiled some unusual star-formation events beyond its spiral arms into its outer regions extending to 100 kpc in projected distance. In this paper I summarize these observations. I shall also highlight some special interpretive surprises suggested by observations of PNe related to their O/H abundances, ages, and the luminosities on PNe well beyond the inner disk.
- Type
- Contributed Papers
- Information
- Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29B: Astronomy in Focus , August 2015 , pp. 11 - 14
- Copyright
- Copyright © International Astronomical Union 2016