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More Images of G11.2-0.3
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Chandra X-ray & VLA Radio Images of G11.2-0.3
By combining X-ray and radio observations, astronomers have evidence
that G11.2-0.3 is likely the result of the explosive death of such a
massive star, perhaps witnessed in 386 A.D. Radio observations measure
the remnant's expansion rate, which, in turn, can be used to calculate
how long ago the star exploded. The radio data is consistent with
association of the supernova remnant with the "guest star" reported by
Chinese astronomers nearly 2,000 years ago. Chandra's ability to
pinpoint the pulsar at nearly the very center of G11.2-0.3 also supports
the idea that this debris field could have been created around the time
of the Chinese observations.
(Credit: X-ray: NASA/CXC/Eureka Scientific/M.Roberts et al.; Radio: NRAO/AUI/NSF )
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| G11.2-0.3 with Scale Bar
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Return to G11.2-0.3 (30 Jan 07)
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