Neutrino Signal of Electron-Capture Supernovae from Core Collapse to Cooling
Dec, 2009
4 pages
Published in:
- Phys.Rev.Lett. 104 (2010) 251101,
- Phys.Rev.Lett. 105 (2010) 249901 (erratum)
e-Print:
- 0912.0260 [astro-ph.SR]
View in:
Citations per year
Abstract: (arXiv)
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.Note:
- 4 pages, 4 eps figures/ published as Physical Review Letters, vol. 104, Issue 25, id. 251101
- 26.30.-k
- 99.10.Cd
- 97.60.Jd
- 97.60.Bw
- 95.85.Ry
- neutrino: opacity
- nucleon nucleon: correlation
- neutrino: oscillation
- neutrino: energy spectrum
- supernova: collapse
References(52)
Figures(4)