784 research outputs found

    Astrophysical aspects of neutrino dynamics in ultra-degenerate quark gluon plasma

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    The cardinal focus of the present review is to explore the role of neutrinos originating from the ultra-dense core of neutron stars composed of quark gluon plasma in the astrophysical scenario. The collective excitations of the quarks involving the neutrinos through the different kinematical processes have been studied. The cooling of the neutron stars as well as pulsar kicks due to asymmetric neutrino emission have been discussed in detail. Results involving calculation of relevant physical quantities like neutrino mean free path and emissivity have been presented in the framework of non-Fermi liquid behavior as applicable to ultra-degenerate plasma.Comment: 10 pages, 9 figures, Accepted for publication as Review Article in Advances of High Energy Physics. arXiv admin note: text overlap with arXiv:1204.2684; text overlap with arXiv:0706.4381 by other author

    Role of magnetic interactions in neutron stars

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    In this work, we present a calculation of the non-Fermi liquid correction to the specific heat of magnetized degenerate quark matter present at the core of the neutron star. The role of non-Fermi liquid corrections to the neutrino emissivity has been calculated beyond leading order. We extend our result to the evaluation of the pulsar kick velocity and cooling of the star due to such anomalous corrections and present a comparison with the simple Fermi liquid case.Comment: 6 pages, Proceedings of the 3rd International Conference on New Frontiers in Physics, Kolymbari, Crete, Greece (matches published version
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