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Fig. 1
Chandra X-ray image of Kepler’s SNR, with red indicating Si-Kα emission (1.75–1.95 keV), green Fe-L emission (0.8–1.6 keV), and blue continuum emission (4–6 keV). The image is based on a deep, 750 ks, Chandra observation (Reynolds et al. 2007).
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