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

Journal Article · Fri Jun 25 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.104.251101· OSTI ID:21415249

Huedepohl, L; Mueller, B; Janka, H -T; Marek, A ^[1]; Raffelt, G G ^[2]

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1. Max-Planck-Institut fuer Astrophysik, Karl-Schwarzschild-Strasse 1, D-85748 Garching (Germany)
2. Max-Planck-Institut fuer Physik, Werner-Heisenberg-Institut, Foehringer Ring 6, D-80802 Muenchen (Germany)

An 8.8M{sub {center_dot}}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 ({approx}9 s) is short because high-density effects suppress our neutrino opacities. After a short phase of accretion-enhanced luminosities ({approx}200 ms), luminosity equipartition among all species becomes almost perfect and the spectra of {nu}{sub e} and {nu}{sub {mu},{tau}}very similar, ruling out the neutrino-driven wind as r-process site. We also discuss consequences for neutrino flavor oscillations.

• OSTI ID: 21415249
• Journal Information: Physical Review Letters, Vol. 104, Issue 25; Other Information: DOI: 10.1103/PhysRevLett.104.251101; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ELECTRON CAPTURE
ELECTRON NEUTRINOS
FLAVOR MODEL
LUMINOSITY
NEUTRON STARS
OSCILLATIONS
R PROCESS
SIGNALS
SIMULATION
SPECTRA
SPHERICAL CONFIGURATION
SUPERNOVAE
BINARY STARS
CAPTURE
COMPOSITE MODELS
CONFIGURATION
ELEMENTARY PARTICLES
ERUPTIVE VARIABLE STARS
EVOLUTION
FERMIONS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
OPTICAL PROPERTIES
PARTICLE MODELS
PHYSICAL PROPERTIES
QUARK MODEL
STAR EVOLUTION
STARS
VARIABLE STARS