N ii ] as an abundance indicator at high redshift

  title={N ii ] as an abundance indicator at high redshift},
  author={Max Pettini and Bernard E. J. Pagel},
Among ‘empirical’ methods of estimating oxygen abundances in extragalactic H ii 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])/Hβ and N2 ≡ [N ii] λ6583/Hα, particularly when applied to star-forming galaxies at high redshifts. 

From This Paper

Figures, tables, and topics from this paper.


Publications referenced by this paper.
Showing 1-2 of 2 references

A&A, in press

D. Kiselman

ApJ, in press

H. A. Kobulnicky, E. D. Skillman

Similar Papers

Loading similar papers…