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Neutrino Bremsstrahlung from electrons in neutron star crusts

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Neutrino Bremsstrahlung from electrons in neutron star crusts

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dc.contributor.author Leinson, L.B.
dc.contributor.author Pérez Cañellas, Armando
dc.date.accessioned 2014-02-20T12:10:10Z
dc.date.available 2014-02-20T12:10:10Z
dc.date.issued 2001
dc.identifier.citation Leinson, L. B. Pérez Cañellas, Armando 2001 Neutrino Bremsstrahlung from electrons in neutron star crusts Nuclear Physics B 597 1-3 279 298
dc.identifier.uri http://hdl.handle.net/10550/33127
dc.description.abstract The process of v (v) over bar Bremsstrahlung via electron scattering off nuclei in the crust of a cooling neutron star is studied within the Random Phase Approximation. We show that the electromagnetic plasma screens the vector weak coupling of electrons with the neutrino field. This screening effect takes place in both the crystalline and liquid phase of the neutron star crust, when the momentum carried out by the neutrino pair is smaller than the inverse Debye screening distance of the electrons. This condition holds in the crust volume at temperatures and densities where the electron Bremsstrahlung dominates the neutrino production. As a result, the vector weak current contribution to the v (v) over bar emissivity decreases along with the temperature as T-10, contrarily to the axial term, which is proportional to T-6. At sufficiently low temperatures, typical for a crystalline crust, the total neutrino-pair emissivity is lower in approximately a factor 2 than previously estimated. We argue that the screening effects under consideration can influence the thermal radiation from the neutron star surface, which is potentially observable.
dc.relation.ispartof Nuclear Physics B, 2001, vol. 597, num. 1-3, p. 279-298
dc.subject Partícules (Física nuclear)
dc.subject Física nuclear
dc.title Neutrino Bremsstrahlung from electrons in neutron star crusts
dc.type journal article es_ES
dc.date.updated 2014-02-20T12:10:10Z
dc.identifier.doi 10.1016/S0550-3213(00)00732-X
dc.identifier.idgrec 093314
dc.rights.accessRights open access es_ES
dc.identifier.url 10.1016/S0550-3213(00)00732-X

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