Fig. 13.
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Flux ratio of (4550 − 4850)/(4200 − 4500) Å for various SNe Ia observed in the nebular phase. Around one year after maximum, the numerator of the ratio is typically dominated by [Fe III] flux and the denominator is dominated by [Fe II] flux. All fluxes have been redshift and reddening corrected. For reddening values and references, see Table D.1.
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