Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-06-27
Phys.Rev. D66 (2002) 123005
Astronomy and Astrophysics
Astrophysics
11 pages, added appendix, references, and minor changes in section 1, 2, and 5
Scientific paper
10.1103/PhysRevD.66.123005
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.
Barkovich M.
D'Olivo Juan Carlos
Montemayor R.
Zanella J. F.
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