Sterile Neutrinos and Pulsar Velocities Revisited,

TL;DR

This paper revisits the role of sterile neutrinos in explaining pulsar velocities by calculating the momentum transfer during neutron star formation, incorporating recent evidence and measurements of neutrino mixing angles.

Contribution

It provides updated calculations showing sterile neutrinos can account for pulsar velocities using new mixing angle data, extending previous estimates.

Findings

Sterile neutrinos can explain observed pulsar velocities.

Recent mixing angle measurements support their role in neutron star kicks.

Updated models align with astrophysical observations.

Abstract

We calculate the momentum given to a proto neutron star during the first 10 seconds after temperature equilibrium is reached, using recent evidence of sterile neutrinos and a measurement of the mixing angle. This is a continuation of an earlier estimate with a wide range of possible mixing angles. Using the new mixing angle we find that sterile neutrinos can account for the observed pulsar velocities.