Neutrino oscillations in magnetically driven supernova explosions

Abstract

We investigate neutrino oscillations from core-collapse supernovae that produce magnetohydrodynamic (MHD) explosions. By calculating numerically the flavor conversion of neutrinos in the highly non-spherical envelope, we study how the explosion anisotropy has impacts on the emergent neutrino spectra through the Mikheyev-Smirnov-Wolfenstein effect. In the case of the inverted mass hierarchy with a relatively large theta_(13), we show that survival probabilities of electron type neutrinos and antineutrinos seen from the rotational axis of the MHD supernovae (i.e., polar direction), can be significantly different from those along the equatorial direction. The event numbers of electron type antineutrinos observed from the polar direction are predicted to show steepest decrease, reflecting the passage of the magneto-driven shock to the so-called high-resonance regions. Furthermore we point out that such a shock effect, depending on the original neutrino spectra, appears also for the low-resonance regions, which leads to a noticeable decrease in the electron type neutrino signals. This reflects a unique nature of the magnetic explosion featuring a very early shock-arrival to the resonance regions, which is in sharp contrast to the neutrino-driven delayed supernova models. Our results suggest that the two features in the electron type antineutrinos and neutrinos signals, if visible to the Super-Kamiokande for a Galactic supernova, could mark an observational signature of the magnetically driven explosions, presumably linked to the formation of magnetars and/or long-duration gamma-ray bursts.

25 pages, 21 figures, JCAP in press

References in corpus (51)

• Collapsars - Gamma-Ray Bursts and Explosions in "Failed Supernovae"
• How Massive Single Stars End their Life
• Discovery of the peculiar supernova 1998bw in the error box of GRB980425
• The Physics of Gamma-Ray Bursts
• Presupernova Evolution of Rotating Massive Stars I: Numerical Method and Evolution of the Internal Stellar Structure
• The Progenitor Stars of Gamma-Ray Bursts
• Status of global fits to neutrino oscillations
• Monte Carlo Study of Supernova Neutrino Spectra Formation
• Identifying the neutrino mass spectrum from a supernova neutrino burst
• Simulations of Magnetically-Driven Supernova and Hypernova Explosions in the Context of Rapid Rotation
• Delayed neutrino-driven supernova explosions aided by the standing accretion-shock instability
• A New Mechanism for Core-Collapse Supernova Explosions
• Explosion Mechanism, Neutrino Burst, and Gravitational Wave in Core-Collapse Supernovae
• Collective Neutrino Flavor Transformation In Supernovae
• Collective neutrino flavor transitions in supernovae and the role of trajectory averaging
• Future Detection of Supernova Neutrino Burst and Explosion Mechanism
• Self-induced spectral splits in supernova neutrino fluxes
• Detection of Neutrinos from Supernovae in Nearby Galaxies
• Axisymmetric simulations of magneto--rotational core collapse: dynamics and gravitational wave signal
• Special Relativistic Simulations of Magnetically-dominated Jets in Collapsing Massive Stars
• Probing the neutrino mass hierarchy and the 13-mixing with supernovae
• Collective three-flavor oscillations of supernova neutrinos
• Three-Dimensional Simulations of Standing Accretion Shock Instability in Core-Collapse Supernovae
• Relativistic Jets and Long-Duration Gamma-ray Bursts from the Birth of Magnetars
• Neutrino signatures of supernova shock and reverse shock propagation
• Exploiting the neutronization burst of a galactic supernova
• Can a supernova be located by its neutrinos?
• Constraints on Type Ib/c and GRB Progenitors
• Mu- and Tau-Neutrino Spectra Formation in Supernovae
• Probing supernova shock waves and neutrino flavor transitions in next-generation water-Cherenkov detectors
• Supernova pointing with low- and high-energy neutrino detectors
• Stochastic Nature of Gravitational Waves from Supernova Explosions with Standing Accretion Shock Instability
• Numerical Study on GRB-Jet Formation in Collapsars
• Signatures of supernova neutrino oscillations in the Earth mantle and core
• Detecting the Neutrino Mass Hierarchy with a Supernova at IceCube
• Identifying neutrino mass hierarchy at extremely small theta(13) through Earth matter effects in a supernova signal
• Oscillation Effects and Time Variation of the Supernova Neutrino Signal
• Shock propagation and neutrino oscillation in supernova
• Mass signature of supernova ${\nu }_{\mu }$ and ${\nu }_{\tau }$ neutrinos in SuperKamiokande
• Effects of Neutrino Oscillation on the Supernova Neutrino Spectrum
• Turbulent Supernova Shock Waves and the Sterile Neutrino Signature in Megaton Water Detectors
• The MSW effect in a fluctuating matter density
• Simulating nonlinear neutrino flavor evolution
• Neutrino Oscillation Effects on Supernova Light Element Synthesis
• Spectropolarimetry of the Unique Type Ib Supernova 2005bf: Larger Asymmetry Revealed by Later-Phase Data
• Supernova prompt neutronization neutrinos and neutrino magnetic moments
• Neutrino oscillation signatures of oxygen-neon-magnesium supernovae
• Supernova Neutrinos, Neutrino Oscillations, and the Mass of the Progenitor Star
• Resonant spin-flavor conversion of supernova neutrinos: Dependence on presupernova models and future prospects
• Resonant Spin-Flavor Conversion of Supernova Neutrinos and Deformation of the Electron Antineutrino Spectrum
• Supernovae and Neutrinos

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