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Warm and dense stellar matter under strong magnetic fields

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arxiv 1105.0254 v1 pith:4QEEWVTX submitted 2011-05-02 nucl-th astro-ph.HE

classification nucl-thastro-ph.HE
keywords magneticfieldmatterneutrinostrongblackholeconsidereddecay
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abstract

We investigate the effects of strong magnetic fields on the equation of state of warm stellar matter as it may occur in a protoneutron star. Both neutrino free and neutrino trapped matter at a fixed entropy per baryon are analyzed. A relativistic mean field nuclear model, including the possibility of hyperon formation, is considered. A density dependent magnetic field with the magnitude $10^{15}$ G at the surface and not more than $3\times 10^{18}$ G at the center is considered. The magnetic field gives rise to a neutrino suppression, mainly at low densities, in matter with trapped neutrinos. It is shown that an hybrid protoneutron star will not evolve to a low mass blackhole if the magnetic field is strong enough and the magnetic field does not decay. However, the decay of the magnetic field after cooling may give rise to the formation of a low mass blackhole.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Constraints on maximum neutron star mass from proto-neutron star evolution

    nucl-th 2025-05 conditional novelty 5.0 of 10

    Hyperonic neutron stars are inferred to cap at roughly 2.15 to 2.2 solar masses, while stars above 2.2 solar masses should have purely nucleonic cores.

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