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Observational Tests Of Intermediate Mass Star Yields Using Planetary Nebulae

This paper summarizes a project designed to study abundances in a sample of planetary nebulae representing a broad range in progenitor mass and metallicity. We collect abundances of C, N, and O determined for the entire sample and compare them with theoretical predictions of planetary nebula abundances from a grid of intermediate-mass star models. We find very good agreement between observations and theory, lending strong support to our current understanding of nucleosynthesis in stars with progenitor masses below 8 solar masses. This agreement between observation and theory also supports the validity of published stellar yields of C and N in the study of the abundance evolution of these two elements.

preprint2001arXivOpen access
K. B. KwitterR. B. C. Henry
astro-ph
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Open access2 authors1 topic
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K. B. KwitterR. B. C. Henry

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