Variation of oxygen and nitrogen abundances in the galaxy

Details Variation of oxygen and nitrogen abundances in the galaxy Variation of oxygen and nitrogen abundances in the galaxy

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984abas.symp..266d&link_type=abstract

In its Airborne Astron. Symp. p 266-271 (SEE N85-17848 08-89)

Astronomy and Astrophysics

Astronomy

5

Chemical Composition, Far Infrared Radiation, Infrared Astronomy, Milky Way Galaxy, Nitrogen, Oxygen, Planetary Nebulae, Astronomical Spectroscopy, Concentration (Composition), H Ii Regions, Interstellar Matter, Line Spectra, Nitrogen Ions, Oxygen Ions

Scientific paper

Results from a program of far-infrared observations of oxygen and nitrogen in Galactic planetary nebulae and H II regions are presented and discussed. Results indicate that the N/O abundance increases inward towards the galactic center, with a steep rise at the outer edge of the 5 kpc ring of active star-formation. The N/O abundances in the inner galaxy are about 2 to 3 times higher than in H II regions in the solar neighborhood and outer galaxy.

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