Prospects of fast flavor neutrino conversion in rotating core-collapse supernovae

Abstract

There is mounting evidence that neutrinos undergo fast flavor conversion (FFC) in core-collapse supernova (CCSN). In this letter, we investigate the roles of stellar rotation on the occurrence of FFC by carrying out axisymmetric CCSN simulations with full Boltzmann neutrino transport. Our result suggests that electron neutrino lepton number (ELN) angular crossings, which are the necessary and sufficient condition to trigger FFC, preferably occur in the equatorial region for rotating CCSNe. By scrutinizing the neutrino--matter interaction and neutrino radiation field, we find some pieces of evidence that the stellar rotation facilitates the occurrence of FFC. The low-electron-fraction region in the post-shock layer expands by centrifugal force, enhancing the disparity of neutrino absorption between electron-type neutrinos (${\nu }_{\mathrm{e}}$) and their anti-particles (${\bar{\nu }}_{\mathrm{e}}$). This has a significant impact on the angular distribution of neutrinos in momentum space, in which ${\nu }_{\mathrm{e}}$ tends to be more isotropic than ${\bar{\nu }}_{\mathrm{e}}$; consequently, ELN crossings emerge. The ELN crossing found in this study is clearly associated with rotation, which motivates further investigation on how the subsequent FFC influences explosion dynamics, nucleosynthesis, and neutrino signals in rotating CCSNe.

8 pages, 5 figures, accepted for publication in the ApJ

References in corpus (24)

• Fast Pairwise Conversion of Supernova Neutrinos: A Dispersion-Relation Approach
• Nuclear equation of state for core-collapse supernova simulations with realistic nuclear forces
• Rotation-supported Neutrino-driven Supernova Explosions in Three Dimensions and the Critical Luminosity Condition
• Fast collective neutrino oscillations inside the neutrino sphere in core-collapse supernovae
• Fast neutrino flavor instability and neutrino flavor lepton number crossings
• Three-dimensional Boltzmann-Hydro code for core-collapse in massive stars I. special relativistic treatments
• A new possibility of the fast neutrino-flavor conversion in the pre-shock region of core-collapse supernova
• Fast Neutrino Flavor Conversion Modes in Multidimensional Core-collapse Supernova Models: the Role of the Asymmetric Neutrino Distributions
• Fast-pairwise collective neutrino oscillations associated with asymmetric neutrino emissions in core-collapse supernova
• Linear Analysis of Fast-Pairwise Collective Neutrino Oscillations in Core-Collapse Supernovae based on the Results of Boltzmann Simulations
• Fast flavor oscillations in dense neutrino media with collisions
• On the characteristics of fast neutrino flavor instabilities in three-dimensional core-collapse supernova models
• Collective fast neutrino flavor conversions in a 1D box: Initial condition and long-term evolution
• The Neutrino Fast Flavor Instability in Three Dimensions
• Simulations of Fast Neutrino Flavor Conversions with Interactions in Inhomogeneous Media
• Comparing treatments of weak reactions with nuclei in simulations of core-collapse supernovae
• Dynamics of fast neutrino flavor conversions with scattering effects: a detailed analysis
• Insights into non-axisymmetric instabilities in three-dimensional rotating supernova models with neutrino and gravitational-wave signatures
• Constructing angular distributions of neutrinos in core collapse supernova from zero-th and first moments calibrated by full Boltzmann neutrino transport
• Flavor isospin waves in one-dimensional axisymmetric neutrino gases
• Spectral swaps in a two-dimensional neutrino ring model
• Nonlinear evolution of fast neutrino flavor conversion in the preshock region of core-collapse supernovae
• Neutrino transport with Monte Carlo method: II. Quantum Kinetic Equations
• Where, when and why: occurrence of fast-pairwise collective neutrino oscillation in three-dimensional core-collapse supernova models

Cited by in corpus (38)

• Fast Neutrino Flavor Conversion in Core-Collapse Supernovae: A Parametric Study in 1D Models
• Roles of fast neutrino-flavor conversion on the neutrino-heating mechanism of core-collapse supernova
• Simple method for determining asymptotic states of fast neutrino-flavor conversion
• Evolution of collisional neutrino flavor instabilities in spherically symmetric supernova models
• Collisional instabilities of neutrinos and their interplay with fast flavor conversion in compact objects
• Evaluating approximate asymptotic distributions for fast neutrino flavor conversions in a periodic 1D box
• Three-dimensional simulation of a core-collapse supernova for a binary star progenitor of SN 1987A
• Characterizing quasi-steady states of fast neutrino-flavor conversion by stability and conservation laws
• Evaluating Approximate Flavor Instability Metrics in Neutron Star Mergers
• Neutrino Flavor Conversion, Advection, and Collisions: Towards the Full Solution
• A Systematic Study on the Resonance in Collisional Neutrino Flavor Instability
• Flavor solitons in dense neutrino gases
• Collisional and Fast Neutrino Flavor Instabilities in Two-dimensional Core-collapse Supernova Simulation with Boltzmann Neutrino Transport
• Universality of the Neutrino Collisional Flavor Instability in Core Collapse Supernovae
• Connecting small-scale to large-scale structures of fast neutrino-flavor conversion
• General-Relativistic Quantum-Kinetics Neutrino Transport
• Neutrino fast flavor oscillations with moments: linear stability analysis and application to neutron star mergers
• Fast neutrino flavor conversions in a supernova: Emergence, evolution, and effects
• Neutrino Decoupling Is Altered by Flavor Conversion
• Effects of energy-dependent scatterings on fast neutrino flavor conversions
• Protoneutron Star Convection Simulated with a New General Relativistic Boltzmann Neutrino Radiation-Hydrodynamics Code
• Self-consistency in models of neutrino scattering and fast flavor conversion
• Robust integration of fast flavor conversions in classical neutrino transport
• Efficient estimation method for time evolution of proto-neutron star mass and radius from supernova neutrino signal
• Fast Flavor Transformations
• Explosive nucleosynthesis with fast neutrino-flavor conversion in core-collapse supernovae
• Applications of Machine Learning to Detecting Fast Neutrino Flavor Instabilities in Core-Collapse Supernova and Neutron Star Merger Models
• Evolution and the quasistationary state of collective fast neutrino flavor conversion in three dimensions without axisymmetry
• Flavor conversions with energy-dependent neutrino emission and absorption
• Fast neutrino-flavor swap in high-energy astrophysical environments
• Quasi-steady evolution of fast neutrino-flavor conversions
• Muon-induced collisional flavor instability in core-collapse supernova
• Comparative Testing of Subgrid Models for Fast Neutrino Flavor Conversions in Core-collapse Supernova Simulations
• Diagnosing electron-neutrino lepton number crossings in core-collapse supernovae: A comparison of methods
• Electron-neutrino lepton number crossings: Variations with the supernova core physics
• Asymmetric emissions of neutrinos in the cooling of rotating proto-neutron stars
• Occurrence of fast neutrino flavor conversions in QCD phase-transition supernovae
• Fast Neutrino Conversion in Hydrodynamic Simulations of Neutrino-Cooled Accretion Disks