Radial abundance gradients and the simple model for the chemical evolution of the Galaxy

Details Radial abundance gradients and the simple model for the chemical evolution of the Galaxy Radial abundance gradients and the simple model for the chemical evolution of the Galaxy

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ap%26ss.196...23m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 196, no. 1, p. 23-28.

Astronomy and Astrophysics

Astrophysics

6

Abundance, Astronomical Models, Chemical Evolution, Galactic Evolution, Radial Distribution, H Ii Regions, Oxygen, Planetary Nebulae

Scientific paper

The oxygen abundance gradient relative to hydrogen is considered, as derived for galactic H II regions and type II planetary nebulae. The so-called 'simple' model for the chemical evolution of the Galaxy is shown to explain well the observed gradients, provided some reasonable assumptions are made regarding the gas distribution in the galactic disk.

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