Large Mixing Angle Sterile Neutrinos and Pulsar Velocities

Details Large Mixing Angle Sterile Neutrinos and Pulsar Velocities Large Mixing Angle Sterile Neutrinos and Pulsar Velocities

2009-06-15

arxiv.org/abs/0906.2802v2

Mod.Phys.Lett.A24:2507-2516,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 1 figure

Scientific paper

10.1142/S0217732309031806

We investigate the momentum given to a protoneutron star, the pulsar kick, during the first 10 seconds after temperature equilibrium is reached. Using a model with two sterile neutrinos obtained by fits to the MiniBoone and LSND experiments there is a large mixing angle, and the effective volume for emission is calculated. Using formulations with neutrinos created by URCA processes in a strong magnetic field, so the lowest Landau level has a sizable probability, we find that with known paramenters the asymmetric sterile neutrino emissivity might account for large pulsar kicks.

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