[O III]/[N II] as an Abundance Indicator at High Redshift
Astrophysics
2009-11-10 v1
Abstract
Among `empirical' methods of estimating oxygen abundances in extragalactic HII regions, the use of the ratio of nebular lines of [O III] and [N II], first introduced by Alloin et al. in 1979, is reappraised with modern calibration data and shown to have certain advantages over R23 = ([O II] + [O III])/Hbeta and N2 = [NII] 6583/Halpha, particularly when applied to star-forming galaxies at high redshifts.
Cite
@article{arxiv.astro-ph/0401128,
title = {[O III]/[N II] as an Abundance Indicator at High Redshift},
author = {Max Pettini and Bernard E J Pagel},
journal= {arXiv preprint arXiv:astro-ph/0401128},
year = {2009}
}
Comments
5 pages including 2 figures. Accepted for publication in Monthly Notices of the Royal Astronomical Society