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Abundance scaling in stars, nebulae and galaxies

Nicholls, David; Sutherland, Ralph; Dopita, Michael; Kewley, Lisa; Groves, Brent Allan


We present a new basis for scaling abundances with totalmetallicity in nebular photoionizationmodels, based on extensive Milky Way stellar abundance data, to replace the uniform scalingnormally used in the analysis of HII regions. Our goal is to provide a single scalingmethod andlocal abundance reference standard for use in nebular modelling and its key inputs, the stellaratmosphere and evolutionary track models. We introduce a parametric enrichment factor, ζ, to describe how atomic abundances...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stw3235
Access Rights: Open Access


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