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arXiv:0706.1511 (astro-ph)
[Submitted on 11 Jun 2007 (v1), last revised 3 Dec 2007 (this version, v3)]

Title:Pulsar Kicks With Modified URCA and Electrons in Landau Levels

Authors:Ernest M. Henley (Department of Physics, University of Washington), Mikkel B. Johnson (Los Alamos National Laboratory), Leonard S. Kisslinger (Department of Physics, Carnegie Mellon University)
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Abstract: We derive the energy asymmetry given the proto-neutron star during the time when the neutrino sphere is near the surface of the proto-neutron star, using the modified URCA process. The electrons produced with the anti-neutrinos are in Landau levels due to the strong magnetic field, and this leads to asymmetry in the neutrino momentum, and a pulsar kick. The magnetic field must be strong enough for a large fraction of the eletrons to be in the lowest Landau level, however, there is no direct dependence of our pulsar velocity on the strength of the magnetic field. Our main prediction is that the large pulsar kicks start at about 10 s and last for about 10 s, with the corresponding neutrinos correlated in the direction of the magnetic field. We predict a pulsar velocity of 1.03 $\times 10^{-4} (T/10^{10}K)^7$ km/s, which reaches 1000 km/s if T $\simeq 9.96 \times 10^{10}$ K.
Comments: 11 pages, 6 figures
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.1511 [astro-ph]
  (or arXiv:0706.1511v3 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.1511
Journal reference: Phys.Rev.D76:125007,2007
Related DOI: https://doi.org/10.1103/PhysRevD.76.125007

Submission history

From: Leonard S. Kisslinger [view email]
[v1] Mon, 11 Jun 2007 19:48:09 UTC (94 KB)
[v2] Tue, 28 Aug 2007 18:21:57 UTC (95 KB)
[v3] Mon, 3 Dec 2007 19:03:36 UTC (96 KB)
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