CTB 109 vs E0102
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CTB 109
CTB 109 is a supernova remnant in the constellation Cassiopeia. It is especially notable because it contains the anomalous X-ray pulsar 1E 2259+586, now classified as a magnetar, providing a well-studied example of an association between a supernova remnant and a highly magnetized neutron star. CTB 109 has been observed at radio and X-ray wavelengths, where its shell and central compact object can...
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E0102
E0102, formally designated 1E 0102.2-7219, is a young, oxygen-rich supernova remnant located in the Small Magellanic Cloud, a dwarf galaxy orbiting the Milky Way. Estimated to be approximately 2,000 years old, it is the brightest X-ray source in its host galaxy and has been extensively studied by instruments like the Chandra X-ray Observatory. The remnant features a distinct, expanding ring of eje...
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