Fast time variations of supernova neutrino signals from 3-dimensional models

作者:Lund Tina*; Wongwathanarat Annop; Janka Hans Thomas; Mueller Ewald; Raffelt Georg
来源:Physical Review D - Particles, Fields, Gravitation and Cosmology, 2012, 86(10): 105031.
DOI:10.1103/PhysRevD.86.105031

摘要

We study supernova neutrino flux variations in the IceCube detector, using 3D models based on a simplified neutrino transport scheme. The hemispherically integrated neutrino emission shows significantly smaller variations compared with our previous study of 2D models, largely because of the reduced activity of the standing accretion shock instability in this set of 3D models which we interpret as a pessimistic extreme. For the studied cases, intrinsic flux variations up to about 100 Hz frequencies could still be detected in a supernova closer than about 2 kpc.

  • 出版日期2012-11-19