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DEM L238 and DEM L249 Animations
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Images of DEM L238 and DEM L249
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The sequence shows an optical image and then a composite of Chandra X-ray data (blue) and
optical data (white) of DEM L238 and DEM L249, two supernova remnants in
the Large Magellanic Cloud. The view then shows how DEM L238 appears in
the three bands of X-ray emission (low-energy X-rays in red, medium
energies in green and high energies in blue). The central region of DEM
L238 is green which indicates that it is rich in iron, identifying it as
a Type Ia supernova that came from the explosion of a much younger star
than expected.
[Runtime: 0:12]
(Credit: X-ray: NASA/CXC/NCSU/K.Borkowski; Optical: NOAO/CTIO/MCELS)
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Comparison of Type Ia Supernovas
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This sequence compares the Chandra image of DEM L238 with the Chandra
image 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 DEM L238 and Kepler supernova remnants were much
younger than the stars that produced the Tycho and SN 1006 remnants.
[Runtime: 0:20]
(Credit: NASA/CXC)
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Return to DEM L238 and DEM L249
(04 Jan 07)
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