Orbital Ferromagnetism and the Chandrasekhar Mass-Limit
arXiv:1201.4455 · doi:10.1063/1.4714611
Abstract
In this paper, using both quantum magnetohydrodynamic (MHD) and magnetohydrostatic (MHS) models of a relativistically degenerate magnetic compact star, the fundamental role of Landau orbital ferromagnetism (LOFER) on the magneto-gravitational stability of such star is revealed. It is shown that the previously suggested magnetic equation of state for LOFER with some generalization of form only within the range and leads to magneto-gravitational stability with distinct critical value governing the magnetohydrostatic stability of the compact star. Furthermore, the value of the parameters and is shown to fundamentally control both the quantum and Chandrasekhar gravitational collapse mechanisms and the previously discovered mass-limit on white dwarfs. Current findings can help to understand the origin of magnetism and its inevitable role on the stability of the relativistically degenerate super-dense magnetized matter encountered in many white-dwarfs and neutron stars.
References in corpus (19)
- Nonlinear collective effects in photon-photon and photon-plasma interactions
- Physics of Strongly Magnetized Neutron Stars
- Dynamics of spin 1/2 quantum plasmas
- Spin magnetohydrodynamics
- Quantum plasma effects in the classical regime
- New Quantum Limits in Plasmonic Devices
- Magnetosonic solitons in a Fermionic quantum plasma
- Spin solitons in magnetized pair plasmas
- Ferromagnetic behavior in magnetized plasmas
- Generation of wakefields by whistlers in spin quantum magnetoplasmas
- Distinctive features of ion-acoustic solitons in EPI super-dense magneto-plasmas with degenerate electrons and positrons
- Ferroplasmas: Magnetic Dust Dynamics in a Conducting Fluid
- On the magnetic flux problem in star formation
- Field-Induced Degeneracy Regimes in Quantum Plasmas
- Remarkable paramagnetic features of Fermi-Dirac plasmas
- Dynamics of nonlinear ion-waves in Fermi-Dirac electron-positron-ion magnetoplasmas
- Orbital Ferromagnetism and Quantum Collapse in Stellar Plasmas
- Quantum collapse in ground-state Fermi-Dirac-Landau plasmas
- Spin-induced localized density excitations in quantum plasmas