On the sulfur and nitrogen abundances in the nucleus of Seyfert 2 and LINER galaxies

Details On the sulfur and nitrogen abundances in the nucleus of Seyfert 2 and LINER galaxies On the sulfur and nitrogen abundances in the nucleus of Seyfert 2 and LINER galaxies

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102.1359s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, Dec. 1990, p. 1359-1365. Research supported by FAP

Astronomy and Astrophysics

Astronomy

26

Abundance, Galactic Nuclei, Nitrogen, Seyfert Galaxies, Sulfur, Astronomical Models, Emission Spectra, H Alpha Line, Metallicity, Photoionization

Scientific paper

The gas abundance in Seyfert 2 and LINER nuclei is studied using optical emission-line data for a sample of 177 galaxies obtained from the literature. On the basis of photoionization model results, it is shown that the range presented by the emission-line ratios (forbidden S II)/(H-alpha) and (forbidden N II)/(H-alpha) can only be reproduced by a range in S and N abundances from half solar to five times solar. The abundances of these two elements seem to be correlated.

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