With 15 galaxies from the KISS sample we extend our NIR luminosity-metallicity relation by more than two orders of magnitude in luminosity. After correcting for a redshift-dependence of the observed abundances, we find a well defined relation with a very small dispersion \(\sigma_{H}=0.13\) mag, from \(M_{H}=-14\) up to \(M_{H}=-24.5\).
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