The impact of the nitrogen-to-oxygen ratio on ionized nebula diagnostics based on [N ii] emission lines

We study the relation between nitrogen and oxygen abundances as a function of metallicity for a sample of emission-line objects for which a direct measurement of the metallicity has been possible. This sample is representative of the very different conditions in ionization and chemical enrichment th...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2009-09, Vol.398 (2), p.949-960
Hauptverfasser:	Pérez-Montero, Enrique, Contini, Thierry
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Chemical elements Earth, ocean, space Exact sciences and technology galaxies: abundances galaxies: starburst H ii regions ISM: abundances Nitrogen Oxygen Star & galaxy formation Stars & galaxies
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