Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.221..911m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 221, Aug. 15, 1986, p. 911-921.
Astronomy and Astrophysics
Astronomy
71
Chemical Evolution, Milky Way Galaxy, Nebulae, Nitrogen, Nuclear Fusion, Carbon, Dwarf Stars, H Ii Regions, Iron, Oxygen, Stellar Mass
Scientific paper
The aim of this paper is to present some theoretical results concerning nitrogen evolution relative to C, O and Fe, obtained by means of a complete chemical-evolution model (no instantaneous recycling approximation) for the solar neighbourhood and to compare them with the model predictions already obtained for extragalactic H II regions. On the basis of this, the author discusses how different star formation modes (bursts and continuous) can affect nitrogen evolution. The author also interprets observational data of solar-neighbourhood stars as well as galactic and extragalactic H II regions, in order to verify and extend the previous suggestions by Matteucci and Tosi (1985) on the nature of nitrogen and on how the primary/secondary distinction can affect the model predictions.
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