Tuesday, March 12, 2013

1303.2612 (Kohta Murase et al.)

Quasi-Thermal Neutrinos from Rotating Proto-Neutron Stars    [PDF]

Kohta Murase, Basudeb Dasgupta, Todd A. Thompson
Rotating and magnetized proto-neutron stars (PNSs) may have neutron-loaded relativistic winds. These neutrons should cause inelastic collisions in the stellar material or around the termination shock, producing ~0.1-1 GeV neutrinos, without relying on cosmic-ray acceleration mechanisms. We show that PINGU and Hyper-Kamiokande can detect such neutrinos from nearby supernovae, by reducing the atmospheric neutrino background via coincident detection of MeV neutrinos or gravitational waves and optical follow-up observations. Detection of these quasi-thermal 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.
View original: http://arxiv.org/abs/1303.2612

No comments:

Post a Comment