Spatial Structure of the Shrapnel Injected from the Supernova Explosion

Computer Science

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Chandra Proposal Id #01500210

Scientific paper

We propose to observe the shrapnel A of the Vela SNR using the AXAF ACIS. This is believed to be a raw ejecta produced during the SN explosion. There are several shrapnels reported. Some of them are observed with ASCA SIS showing that they show abnormal metal abundance. We selected the shrapnel A, showing Si rich abundance, since it has enough surface brightness and is rather compact. We can reveal the compression of matter in its top region while the peel off of matter in its bottom region. The top region will have some stratification of matter: the interstellar matter, the circumstellar matter and the Si rich ejecta. The bottom region will show the Si streak. These can be obtained solely by using high spatial resolution of AXAF as well as the spectral resolution of ACIS.

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