Abundance analysis of giant H II regions in nearby spirals.

Details Abundance analysis of giant H II regions in nearby spirals. Abundance analysis of giant H II regions in nearby spirals.

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990rmxaa..21..223d&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, Vol. 21, p. 223 - 227

Astronomy and Astrophysics

Astronomy

7

H Ii Regions: Spiral Galaxies, H Ii Regions: Spectra, H Ii Regions: Metal Abundances

Scientific paper

Spectrophotometric data of giant H II regions covering the spectral range from λ3600 to 9700 Å in the spiral galaxies M101 and M51 have been analyzed in order to determine reliable chemical abundances and radial gradients. The behaviour of the S/O ratio with metallicity is also explored. The data are consistent, within the errors, with a constant S/O abundance although uncertainties are large.

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