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Article overview
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Jittering-jets explosion triggered by the standing accretion shock instability | | Oded Papish
; Avishai Gilkis
; Noam Soker
; | | Date: |
2 Aug 2015 | | Abstract: | We show that the standing accretion shock instability (SASI) that has been
used to ease the shock revival in core collapse supernovae (CCSNe)
neutrino-driven explosion models, might play a much more decisive role in
supplying the stochastic angular momentum required to trigger an explosion with
jittering jets. To play a minor role in neutrino-based explosion models, the
kinetic energy of the gas inside the stalled shock associated with the
transverse (non-radial) motion should be about more than ten percent of the
energy of the accreted gas. We find that this implies a stochastic angular
momentum that can reach about five percent of the Keplerian specific angular
momentum around the newly born neutron star. Such an accretion flow leaves an
open conical region along the poles with an average opening angle of about 5
degrees. The outflow from the open polar region powers an explosion according
to the jittering-jets model. | | Source: | arXiv, 1508.0218 | | Services: | Forum | Review | PDF | Favorites | |
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