publication . Preprint . 2011

Reduce, Reuse, Recycle: Planetary Nebulae as Green Galactic Citizens

Kwitter, K. B.; Henry, R. B. C.;
Open Access English
  • Published: 12 Sep 2011
Abstract
We review gas-phase abundances in PNe and describe their dual utility as archives of original progenitor metallicity via the alpha elements, as well as sources of processed material from nucleosynthesis during the star's evolution, i.e., C, N, and s-process elements. We describe the analysis of PN spectra to derive abundances and discuss the discrepancies that arise from different choices at each step. Abundance results for the Milky Way and Magellanic Clouds from various groups of investigators are presented; the observational results are compared with theoretical predictions of AGB stellar yields. Finally, we suggest areas where more work is needed to improve ...
Subjects
arxiv: Astrophysics::Galaxy AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Solar and Stellar Astrophysics
free text keywords: Astrophysics - Astrophysics of Galaxies
Funded by
NSF| Collaborative Research: PNe as Probes of the Early Chemical History of the Galaxy and M31
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 0806577
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
NSF| Collaborative Research: PNe as Probes of the Early Chemical History of the Galaxy and M31
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 0806490
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
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