Effects of strong magnetic fields on the population of hyperon stars

Abstract

In this contribution we study the effects of strong magnetic fields on the particle population of neutron stars with hyperon degrees of freedom in their composition. The star matter is described by a multi-component model with parameterized baryon-meson interaction couplings. We study the magnetic effects on the equation of state (EoS) due to the Landau quantization, assuming a density dependent static magnetic field that reaches about $10^{19}G$ in the center of the star. The Tolman-Oppenheimer-Volkoff equations are solved in order to understand the dependence of the mass-radius relation and hyperon population on the magnetic field intensity assuming different interaction coupling schemes.

Prepared for conference STARS2013 - 2nd Caibbean Symposium on Cosmology, Gravitaion, Nuclear and Astroparticle Physics / SMFNS2013 - 3rd International Symposium on Strong Electromagnetic Fields and Neutron Stars

References in corpus (6)

• Shapiro delay measurement of a two solar mass neutron star
• The strongest cosmic magnets: Soft Gamma-ray Repeaters and Anomalous X-ray Pulsars
• Equation of State of a Dense and Magnetized Fermion System
• Neutron star equilibrium configurations within a fully relativistic theory with strong, weak, electromagnetic, and gravitational interactions
• Anisotropic Pressures in Very Dense Magnetized Matter
• On the Density Dependent Nuclear Matter Compressibility

Cited by in corpus (3)

• Equation of State for Nucleonic and Hyperonic Neutron Stars with Mass and Radius Constraints
• Many-body forces in magnetic neutron stars
• Neutron stars including the effects of chaotic magnetic fields and the anomalous magnetic moments