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The dust mass of the well-known supernova remnant (SNR) IC 443 is estimatedfrom both the infrared emission and the visual extinction. With photometry tothe images taken by \emph{Spitzer}, \emph{WISE}, \emph{IRAS}, \emph{AKARI} and\emph{Planck}, the spectral energy distribution (SED) of the dust is obtainedafter subtracting the synchrotron radiation and considering the spectral lineemission. The dust mass is derived from fitting the SED by a two-componentmodel, which results in a warm component of the temperature of $\sim$ 53 K andthe mass of 0.1 $M_\odot$, and a cold component of the temperature of $\sim 17$K and the mass of 46 $M_\odot$. On the other hand, the dust mass is derived tobe $\sim$ 66 $M_\odot$ from the visual extinction of IC 443 which is identifiedfrom the 3D Bayestar extinction map and its coincidence with the infraredemission morphology. Roughly the dust mass derived from the infrared emissionand the extinction agree mutually. However, the dust mass derived from theinfrared emission can be adjusted to be more consistent with that from theextinction by using different dust opacity property or considering opticallythick radiation. In addition, the distribution of dust temperature and mass isanalyzed by fitting the SED pixel by pixel.

Dust Mass Associated with the Supernova Remnant IC 443 when Emission Meets Extinction