Dense stellar matter with trapped neutrinos under strong magnetic fields

Abstract

We investigate the effects of strong magnetic fields on the equation of state of dense stellar neutrino-free and neutrino-trapped matter. Relativistic nuclear models both with constant couplings (NLW) and with density dependent parameters (DDRH) and including hyperons are considered . It is shown that at low densities neutrinos are suppressed in the presence of the magnetic field. The magnetic field reduces the strangeness fraction of neutrino-free matter and increases the strangeness fraction of neutrino-trapped matter. The mass-radius relation of stars described by these equations of state are determined. The magnetic field makes the overall equation of state stiffer and the stronger the field the larger the mass of maximum mass star and the smaller the baryon density at the center of the star. As a consequence in the presence of strong magnetic fields the possibility that a protoneutron star evolves to a blackhole is smaller.

18 pages, 13 figures, 5 tables, submitted to J. Phys. G

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• Physics of Strongly Magnetized Neutron Stars
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• Quark matter under strong magnetic fields in the su(3) Nambu-Jona-Lasinio Model
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• Hadron production in non linear relativistic mean field models
• Properties of hyperonic matter in strong magnetic fields
• Quark-meson coupling model for antikaon condensation in neutron star matter with strong magnetic fields

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• Holographic baryonic matter in a background magnetic field
• Neutron Stars with Hyperons subject to Strong Magnetic Field
• Neutron stars in a perturbative $f(R)$ gravity model with strong magnetic fields
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• Magnetic susceptibility and magnetization properties of asymmetric nuclear matter under a strong magnetic field
• Limiting magnetic field for minimal deformation of a magnetised neutron star
• Stable Charged Gravastar model in Cylindrically Symmetric Space-time
• Asymmetric Neutrino Emission from Magnetized Proto-Neutron Star Matter including Hyperons in Relativistic Mean Field Theory
• Relativistic Mean-Field Treatment of Pulsar Kick from Neutrino Propagation in Magnetized Proto-Neutron
• Landau parameters for asymmetric nuclear matter with a strong magnetic field
• Properties of Hybrid Stars with Density Dependent Bag Model
• Variation of delta baryon mass and hybrid star properties in static and rotating conditions
• Properties of Neutron Stars with hyperon cores in parameterized hydrostatic conditions
• Deconfinement of non-strange hadronic matter with nucleons and $\Delta$ baryons to quark matter in neutron stars
• Role of $\Delta$s in determining the properties of Neutron Stars in parameterized hydrostatic equilibrium
• Existence of conserved quantities and their algebra in curved spacetime