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

2009/12/31 by L. Huedepohl, Lorenz Hüdepohl, B. Mueller +7 · 6 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Electron #Electron capture #Electron neutrino #Equipartition theorem #Galaxy #Gamma-ray bursts and supernovae #Luminosity #Magnetic field #Neutrino #Neutrino Physics Research #Neutrino oscillation #Neutron star #Nuclear physics #Physics #Spectral line #Supernova #astro-ph.SR

paper · pdf · doi:10.1103/physrevlett.104.251101

published as Phys.Rev.Lett.104:251101,2010; Erratum-ibid.105:249901,2010 · 4 pages, 4 eps figures; published as Physical Review Letters, vol. 104, Issue 25, id. 251101

openalex publication_date 2010/06/22 · arxiv created 2011/02/20 · arxiv updated 2011/02/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22

Abstract

An 8.8M_\ensuremath\bigodot electron-capture supernova was simulated in spherical symmetry consistently from collapse through explosion to essentially complete deleptonization of the forming neutron star. The evolution time (\ensuremath∼9 s) is short because high-density effects suppress our neutrino opacities. After a short phase of accretion-enhanced luminosities (\ensuremath∼200 ms), luminosity equipartition among all species becomes almost perfect and the spectra of \ensuremathν_e and \ensuremathν_\ensuremathμ,\ensuremathτ very similar, ruling out the neutrino-driven wind as r-process site. We also discuss consequences for neutrino flavor oscillations.

Citations

• Nucleosynthesis in Supernovae
• First study of neutron tagging with a water Cherenkov detector
• The Supernova Channel of Super‐AGB Stars
• Neutrino interactions in hot and dense matter
• Stellar core collapse - Numerical model and infall epoch
• Large underground, liquid based detectors for astro-particle physics in Europe: scientific case and prospects
• Theory of core-collapse supernovae
• Neutron Star Structure and the Equation of State
• Supernova Simulations with Boltzmann Neutrino Transport: A Comparison of Methods

Cited by

• Supernova Neutrino Detection
• Axion astrophysics
• Hydrodynamical Neutron-star Kicks in Electron-capture Supernovae and Implications for the CRAB Supernova
• Core-collapse Supernova Explosions Driven by the Hadron-quark Phase Transition as a Rare r-process Site
• Charged current neutrino interactions in hot and dense matter
• Multidimensional simulations of ultrastripped supernovae to shock breakout