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Fig. 19.

image

Late phase Ks-band and Spitzer photometry converted into monochromatic fluxes plotted together with our last epoch NIR spectrum. The SED exhibits a strong NIR and MIR excess that dominates the SN emission two years after discovery. The NIR spectrum was scaled to match the Ks-band flux. We fit a sum of two BB functions (magenta dashed line) to reproduce the NIR spectrum and the MIR fluxes from the first Spitzer epoch. The warm BB component (red dashed line) dominating the NIR and MIR has a temperature of 1022 K and the hot component (blue dashed line) has a temperature of 4513 K.

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