Critical conditions for core-collapse supernovae

Uri Keshet*, Shmuel Balberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The explosion of a core-collapse supernova can be approximated by the breakdown of steady-state solutions for accretion onto a proto-neutron star (PNS). We analytically show that as the neutrino luminosity exceeds a critical value L c, the neutrinosphere pressure exceeds the hydrostatic limit even for an optimal shock radius R. This yields L cM2T2 (with logarithmic corrections) and RM/T, in agreement with numerical results, where M and T are the PNS mass and neutrino temperature, respectively. The near-critical flow can be approximated as a ballistic shell on top of an isothermal layer.

Original languageAmerican English
Article number251101
JournalPhysical Review Letters
Volume108
Issue number25
DOIs
StatePublished - 21 Jun 2012

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