3C 397 vs W50
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3C 397
3C 397, also designated G41.1-0.3, is a supernova remnant in the Milky Way and a radio source listed in the Third Cambridge Catalogue. X-ray observations show unusually high abundances of iron-group elements including iron, nickel, manganese, and chromium. Its asymmetric, clumpy structure and chemical composition are studied as evidence about the Type Ia supernova that produced the remnant.
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W50
W50 is a supernova remnant located in the constellation Aquila, approximately 18,000 light-years from Earth. The nebula has a distinctive elongated, somewhat rectangular shape that spans about 350 light-years across, making it one of the largest supernova remnants in our galaxy. At its center lies the microquasar SS 433, a binary system containing a black hole or neutron star orbiting a massive co...
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