Asymmetric SN explosion in Vela SNR

Details Asymmetric SN explosion in Vela SNR Asymmetric SN explosion in Vela SNR

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop..210b&link_type=abstract

XMM-Newton Proposal ID #06750801

Other

Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Velashrapnelg

Scientific paper

The Vela supernova remnant (SNR) displays remarkable features which appear to be ejecta ``shrapnel'' visible beyond the main shell. One of these shrapnel (A) is distinct from the others in that its X-ray spectrum exhibits a high Si abundance, while the other shrapnel exhibit enhanced O, Ne, and Mg abundances. Two unexplored ejecta shrapnel (G and H) are located on the opposite side of the remnant from shrapnel A, suggesting that the SN explosion may have resulted in a jet-counterjet Si-rich structure, reminiscent of Cas A. We propose to observe these shrapnel for the first time to determine if they are also Si-rich like shrapnel A. If this is the case, the Vela SNR may be the first direct evidence of a jet-induced SN explosion.

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