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   PR # 41080
   There are several cusps structure outside the Vela SNR. They are
   strongly considered as shrapnels launched in the SN explosion. We
   observed one of them and found that it is heavily overabundant of Si.
   This supports the idea that it surely comes from the ejecta of the
   SN. We propose to observe another cusp strucutre that is brighter and
   bigger than that we observed so far. Based on the Rosat result, we
   can expect much more overabundant of heavy elements.
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