A Strong-Line Method of Determining Nitrogen Abundances

Details A Strong-Line Method of Determining Nitrogen Abundances A Strong-Line Method of Determining Nitrogen Abundances

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...186.3509t&link_type=abstract

American Astronomical Society, 186th AAS Meeting, #35.09; Bulletin of the American Astronomical Society, Vol. 27, p.860

Astronomy and Astrophysics

Astronomy

Scientific paper

A simple method for deriving [N/O] abundances is presented which is based upon models from CLOUDY (Ferland) and which requires the observations of optical [NII], [OII], and [OIII] lines. We show the self- consistency of the new method, and the agreement with more detailed modeling of individual HII regions. Gradients for well-observed galaxies in the Vila-Costas and Edmunds (1993) sample are presented, as are the discrepancies between the two methods.

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