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Stellar yields and abundances: new directions from planetary nebulae

Lugaro, Maria; Karakas, Amanda I.; Pignatari, Marco; Doherty, Carolyn L.

Authors

Maria Lugaro

Amanda I. Karakas

Carolyn L. Doherty



Abstract

Copyright © International Astronomical Union 2017. Planetary nebulae retain the signature of the nucleosynthesis and mixing events that occurred during the previous AGB phase. Observational signatures complement observations of AGB and post-AGB stars and their binary companions. The abundances of the elements heavier than iron such as Kr and Xe in planetary nebulae can be used to complement abundances of Sr/Y/Zr and Ba/La/Ce in AGB stars, respectively, to determine the operation of the slow neutron-capture process (the s process) in AGB stars. Additionally, observations of the Rb abundance in Type I planetary nebulae may allow us to infer the initial mass of the central star. Several noble gas components present in meteoritic stardust silicon carbide (SiC) grains are associated with implantation into the dust grains in the high-energy environment connected to the fast winds from the central stars during the planetary nebulae phase.

Journal Article Type Article
Publication Date Oct 1, 2016
Journal Proceedings of the International Astronomical Union
Print ISSN 1743-9213
Electronic ISSN 1743-9221
Publisher Cambridge University Press (CUP)
Peer Reviewed Peer Reviewed
Volume 12
Issue S323
Pages 86-94
APA6 Citation Lugaro, M., Karakas, A. I., Pignatari, M., & Doherty, C. L. (2016). Stellar yields and abundances: new directions from planetary nebulae. IAU symposium and colloquium proceedings series / International Astronomical Union. Symposium, 12(S323), 86-94. https://doi.org/10.1017/s1743921317001247
DOI https://doi.org/10.1017/s1743921317001247
Publisher URL https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/stellar-yields-and-abundances-new-directions-from-planetary-nebulae/D24FCC892B0ABC3BD55174ED4C76B13D
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