Keywords
H II Regions: Spiral Galaxies
H II Regions: Spectra
H II Regions: Metal Abundances
H II Regions: Spectra
H II Regions: Metal Abundances
How to Cite
Abundance analysis of giant H II regions in nearby spirals. (1990). Revista Mexicana De Astronomía Y Astrofísica, 21(1), 223. https://astronomia.unam.mx/journals/rmxaa/article/view/1990rmxaa..21..223d
Abstract
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.Similar Articles
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