Radio determination of oxygen abundance variation in the Galaxy

Details Radio determination of oxygen abundance variation in the Galaxy Radio determination of oxygen abundance variation in the Galaxy

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....80l...3m&link_type=abstract

Astronomy and Astrophysics, vol. 80, no. 1, Nov. 1979, p. L3-L5.

Astronomy and Astrophysics

Astronomy

54

Abundance, Electron Energy, Interstellar Gas, Milky Way Galaxy, Oxygen, Radio Astronomy, H Ii Regions, O Stars, Radio Spectra, Recombination Reactions

Scientific paper

High frequency recombination-line observations made with the Effelsberg 100-m telescope are used to determine the variation of the electron temperature of galactic H II regions with galactic radius. Electron temperatures are converted into O/H abundance ratios. The corresponding variation of the O/H abundance ratio with galactic radius does not show the monotonic increase towards the galactic center suggested by earlier investigations, but rather seems to peak near a galactic radius of 4 kpc.

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