[O III]/[N II] as an Abundance Indicator at High Redshift

Details [O III]/[N II] as an Abundance Indicator at High Redshift [O III]/[N II] as an Abundance Indicator at High Redshift

2004-01-08

arxiv.org/abs/astro-ph/0401128v1

Mon.Not.Roy.Astron.Soc.348:L59,2004

Astronomy and Astrophysics

Astrophysics

5 pages including 2 figures. Accepted for publication in Monthly Notices of the Royal Astronomical Society

Scientific paper

10.1111/j.1365-2966.2004.07591.x

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.

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