Neutrino oscillation mechanism for pulsar kicks reexamined
M. Barkovich, J. C. D'Olivo, R. Montemayor, J. F. Zanella
Abstract
Anisotropic neutrino emission during the neutron star formation can be the origin of the observed proper motions of pulsars. We derive a general expression for the momentum asymmetry in terms of the neutrino energy flux gradient, and show that a nonvanishing effect is induced at the lowest order by a deformed neutrinosphere. In particular, this result is valid for a neutrino flux transported through a spherical atmosphere with constant luminosity.
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