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Fig. 7

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Best-fit abundance ratios of Ne, Mg, Si, S, Fe, and Ni relative to Si are shown by red circles. The predicted abundance ratios from the carbon deflagration (W7; Nomoto et al. 1997) model are shown by diamonds and those from the delayed detonation (WDD2; Nomoto et al. 1997) model are shown by squares. The best fit of relative abundances obtained by Sezer & Gk (2012) is also indicated. For the abundance ratio of Ca/Si, we assumed the value obtained by Sezer & Gk (2012) using Suzaku observations, since the Ca emission lines cannot be measured in our spectra and therefore its abundance cannot be determined.

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