Axion emission from a magnetized neutron gas |
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Authors: | V V Skobelev |
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Institution: | 1.Moscow State Industrial University,Moscow,Russia |
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Abstract: | By using the polarization density matrix for a neutron in a magnetic field, the axion luminosity of magnetic neutron stars
that is associated with the flip of the anomalous magnetic moment of degenerate nonrelativistic neutrons is calculated. It
is shown that, at values of the magnetic-field induction in the region B ≳ 1018 G, this mechanism of axion emission is dominant in “young” neutron stars of temperature about a few tens of MeV units. At
B ∼ 1017 G, it is one of the basic mechanisms. The Fermi energy of a degenerate neutron gas in a magnetic field is found, and it is
shown that there is no such mechanism of axion emission in the degenerate case. |
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Keywords: | |
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