论文标题
当发射灭绝时，与超新星残留IC 443相关的尘埃质量
Dust Mass Associated with the Supernova Remnant IC 443 when Emission Meets Extinction
论文作者
论文摘要
众所周知的超新星残留物（SNR）IC 443的尘埃质量是从红外发射和视觉灭绝中估计的。通过\ emph {spitzer}拍摄的图像，\ emph {wise}，\ emph {iras}，\ emph {akari}和\ emph {planck}，在减去同步辐射线后获得了尘埃的光谱能量（SED）。尘埃质量是由两个组件模型拟合SED的，这导致温度的温度为$ \ sim $ 53 k，质量为0.1 $ m_ \ odot $，以及$ \ sim 17 $ k的冷分，质量为17 $ k，质量为46 $ m_ \ odot $。另一方面，从IC 443的视觉灭绝中得出的尘埃质量为$ \ sim $ 66 $ m_ \ odot $，它可以从3D Bayestar灭绝地图及其与红外发射形态相吻合。大约是源自红外发射的尘埃质量，而灭绝则相互同意。但是，可以调整源自红外发射的尘埃质量，以与使用不同的灰尘不透明度特性或考虑光学厚度辐射更加一致。另外，通过像素拟合SED像素来分析灰尘温度和质量的分布。
The dust mass of the well-known supernova remnant (SNR) IC 443 is estimated from both the infrared emission and the visual extinction. With photometry to the images taken by \emph{Spitzer}, \emph{WISE}, \emph{IRAS}, \emph{AKARI} and \emph{Planck}, the spectral energy distribution (SED) of the dust is obtained after subtracting the synchrotron radiation and considering the spectral line emission. The dust mass is derived from fitting the SED by a two-component model, which results in a warm component of the temperature of $\sim$ 53 K and the 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 to be $\sim$ 66 $M_\odot$ from the visual extinction of IC 443 which is identified from the 3D Bayestar extinction map and its coincidence with the infrared emission morphology. Roughly the dust mass derived from the infrared emission and the extinction agree mutually. However, the dust mass derived from the infrared emission can be adjusted to be more consistent with that from the extinction by using different dust opacity property or considering optically thick radiation. In addition, the distribution of dust temperature and mass is analyzed by fitting the SED pixel by pixel.
