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arXiv · 0912.0260

Neutrino Signal of Electron-Capture Supernovae from Core Collapse to Cooling

L. Huedepohl·B. Mueller·H. -Th. Janka·A. Marek·G. G Raffelt
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Abstract

An 8.8 solar mass electron-capture supernova (SN) was simulated in spherical symmetry consistently from collapse through explosion to nearly complete deleptonization of the forming neutron star. The evolution time of about 9 s is short because of nucleon-nucleon correlations in the neutrino opacities. After a brief phase of accretion-enhanced luminosities (~200 ms), luminosity equipartition among all species becomes almost perfect and the spectra of electron antineutrinos and muon/tau antineutrinos very similar. We discuss consequences for the neutrino-driven wind as a nucleosynthesis site and for flavor oscillations of SN neutrinos.

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L. Huedepohl, B. Mueller, H. -Th. Janka, A. Marek, G. G Raffelt. 2011-02-20. Neutrino Signal of Electron-Capture Supernovae from Core Collapse to Cooling. https://doi.org/10.1103/physrevlett.104.251101%2010.1103%2Fphysrevlett.105.249901

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