Quantum instability of magnetized stellar objects

Abstract

The equations of state for degenerate electron and neutron gases are studied in the presence of magnetic fields. After including quantum effects to study the structural properties of these systems, it is found that some hypermagnetized stars can be unstable based on the criterium of stability of pressures. Highly magnetized white dwarfs should collapse producing a supernova type Ia, whilst superstrongly magnetized neutron stars cannot stand their own magnetic field and must implode, too. A comparison of our results with a set of the available observational data of some compact stars is also presented, and the agreement between this theory and observations is verified.

14 pages, 2 figures, uses ChJAA LaTeX macro; final version to appear in ChJAA

References in corpus (6)

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• The Study of Relatively Low Density Stellar Matter in Presence of Strong Quantizing Magnetic Field
• Magnetic Fields in Quantum Degenerate Systems and in Vacuum
• Gravitational collapse of a magnetized fermion gas with finite temperature
• Medium effect on anisotropic surface tension of magnetized quark matter
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• Anisotropic stellar structure equations for magnetized stars
• Efectos del campo magnético en un gas de bosones vectoriales neutros: aplicaciones astrofísicas
• The magnetic stress tensor in magnetized matter
• Termodinámica de un gas magnetizado de bosones vectoriales neutros