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Metallicity calibrations and the mass-metallicity relation for star-forming galaxies

Kewley, Lisa; Ellison, Sara L

Description

We investigate the effect of metallicity calibrations, AGN classification, and aperture covering fraction on the local mass-metallicity (M-Z) relation using 27,730 star-forming galaxies from the SDSS Data Release 4. We analyze the SDSS M-Z relation with 10 metallicity calibrations, including theoretical and empirical methods. We show that the choice of metallicity calibration has a significant effect on the shape and y-intercept [12 + log (O/H)] of the M-Z relation. The absolute metallicity...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/82345
Source: Astrophysical Journal, The
DOI: 10.1086/587500

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