PN-Carbon Yields and the Chemical Evolution of the Galactic Disk

Preprint

26 July 2002

preprint
Published by arXiv in arXiv

Abstract

Two sets of observational carbon stellar yields for low-and-intermediate mass stars are computed based on planetary nebula abundances derived from C II lambda 4267 and C III lambda lambda 1906 + 1909 lines, respectively. These observational yields are assumed in chemical evolution models for the solar vicinity and the Galactic disk. C/O values observed in stars of the solar vicinity and Galactic H II regions are compared with those predicted by chemical evolution models for the Galaxy. I conclude that the C yields derived from permitted lines are in better agreement with the observational constraints than those derived from forbidden lines.

Keywords

CHEMICAL EVOLUTION
EVOLUTION MODELS
SOLAR VICINITY
GALACTIC DISK
EVOLUTION
YIELDS
CARBON
LAMBDA
STARS

All Related Versions

Version 1, 2002-07-26, ArXiv
Version 2, 2002-10-30, ArXiv
Version 1, 2001-03-09, ArXiv (Unconfirmed version)
Published version: Monthly Notices of the Royal Astronomical Society, 339 (3), 825.

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