MOS mean photon energy map of the 0.3−3.0 keV emission (bin size = 9″). Pixels with less than four counts have been masked out. The color bar has a linear scale and the color-coded energy range is between 1.2 keV and 1.7 keV. The X-ray spectra extraction regions selected are indicated in white (for the whole and central part of the SNR) and black circles (for individual regions), respectively.
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