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The Oxygen Problem

Published online by Cambridge University Press:  30 March 2016

Michael S. Bessell
Michael S. Bessell*
Affiliation:
Mount Stromlo Observatory, Cotter Rd, ACT 2611, Australia

Abstract

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Permitted OI, forbidden [OI], electronic AΣ − XП UV OH and vib-rot IR OH lines often infer different oxygen abundances for cool stars. Which species should one use to determine the oxygen abundance in cool stars and how does one reconcile the different results for different species? Although there are uncertainties and systematic differences in the molecular gf values used by different authors, the main reason for the different results lies in the 1-D model atmosphere analyses that are used.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 12: Highlights of Astronomy. As presented at the XXIVth General Assembly of the IAU, 2000 , 2002 , pp. 410 - 412
Copyright
Copyright © Astronomical Society of Pacific 2002

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