Chandra Comparison of Type Ia Supernova Remnants
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This sequence compares the Chandra image of Kepler's SNR with the Chandra
images of 3 Type Ia supernova remnants located in the Milky Way. The X-ray
emission for Kepler's remnant contains a bright central region similar to
DEM L238, while the X-ray emission for Tycho's remnant and SN 1006 are
generally much more uniform. These results suggest that the stars that
exploded and caused the Kepler and DEM L238 supernova remnants were much
younger than the stars that produced the Tycho and SN 1006 remnants.
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(Credit: X-ray: NASA/CXC/NCSU/S.Reynolds et al; Optical: DSS)