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Atomic Data and Neutron-Capture Element Abundances in Planetary Nebulae

Published online by Cambridge University Press:  08 August 2017

N. C. Sterling Open the ORCID record for N. C. Sterling [Opens in a new window]
N. C. Sterling*
Affiliation:
Department of Physics, University of West Georgia, 1601 Maple Street, Carrollton, GA 30118, USA email: [email protected]
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Abstract

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Neutron(n)-capture elements are produced by s-process nucleosynthesis in low- and intermediate-mass AGB stars, and therefore can be enriched in planetary nebulae (PNe). In the last ten years, n-capture elements have been detected in more than 100 PNe in the Milky Way and nearby galaxies. In some objects, several different n-capture elements have been detected, providing valuable constraints to models of AGB nucleosynthesis and evolution. These detections have motivated theoretical and experimental investigations of the atomic data needed to derive accurate n-capture element abundances. In this review, I discuss the methods and results of these atomic data studies, and their application to abundance determinations in PNe.

Keywords

atomic dataplanetary nebulae: generalnuclear reactions, nucleosynthesis, abundancesstars: AGB and post-AGB
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S323: Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution , October 2016 , pp. 74 - 81
Copyright
Copyright © International Astronomical Union 2017 

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