Radial Gradients and Metallicities in the Galactic Disk

Details Radial Gradients and Metallicities in the Galactic Disk Radial Gradients and Metallicities in the Galactic Disk

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002rmxac..12..207m&link_type=abstract

Ionized Gaseous Nebulae, a Conference to Celebrate the 60th Birthdays of Silvia Torres-Peimbert and Manuel Peimbert, Mexico City

Astronomy and Astrophysics

Astronomy

6

Galaxy: Abundances, H Ii Regions, Ism: Abundances, Planetary Nebulae: General, Stars: Abundances

Scientific paper

Radial O/H abundance gradients derived from H II regions, hot stars and planetary nebulae are combined with [Fe/H] gradients from open cluster stars in order to derive an independent [O/Fe]-[Fe/H] relation for the Galactic disk. A comparison of the obtained relation with recent observational data and theoretical models suggests that the [O/Fe] ratio is not higher than [O/Fe] =~ 0.4, at least within the metallicity range of the considered samples.

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