2013/03/31 by Kohta Murase, Basudeb Dasgupta, Todd A. Thompson · 16 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmic ray #Gamma-ray burst #Gamma-ray bursts and supernovae #Neutrino #Neutron star #Nuclear physics #Nucleosynthesis #Particle acceleration #Physics #Plasma #Pulsars and Gravitational Waves Research #Stars #Supernova #astro-ph.HE #astro-ph.SR #hep-ph
paper · pdf · doi:10.1103/physrevd.89.043012
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 89(4) (American Physical Society) · 8 pages, 1 figure, accepted for publication in PRD
arxiv created 2014/01/07 · openalex publication_date 2014/02/24 · arxiv updated 2014/06/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Rotating and magnetized protoneutron stars may drive relativistic magnetocentrifugally accelerated winds as they cool immediately after core collapse. The wind fluid near the star is composed of neutrons and protons, and the neutrons become relativistic while collisionally coupled with the ions. Here, we argue that the neutrons in the flow eventually undergo inelastic collisions around the termination shock inside the stellar material, producing \ensuremath∼0.1--1 GeV neutrinos, without relying on cosmic-ray acceleration mechanisms. Even higher-energy neutrinos may be produced via particle acceleration mechanisms. We show that Precision IceCube Next Generation Upgrade and Hyper-Kamiokande can detect such neutrinos from nearby core-collapse supernovae, by reducing the atmospheric neutrino background via coincident detection of MeV neutrinos or gravitational waves and optical observations. Detection of these GeV and/or higher-energy neutrinos would provide important clues to the physics of magnetic acceleration, nucleosynthesis, the relation between supernovae and gamma-ray bursts, and the properties of newly born neutron stars.