[O III] / [N II] as an abundance indicator at high redshift
Jan, 20045 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 348 (2004) L59
e-Print:
- astro-ph/0401128 [astro-ph]
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Abstract: (arXiv)
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.References(56)
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