The force-free dipole magnetosphere in non-linear electrodynamics
arXiv:1906.11702 · doi:10.1088/1674-4527/20/3/38
Abstract
Quantum electrodynamics (QED) effects may be included in physical processes of magnetar and pulsar magnetospheres with strong magnetic fields. Involving the quantum corrections, the Maxwell electrodynamics is modified to non-linear electrodynamics. In this work, we study the force-free magnetosphere in non-linear electrodynamics in a general framework. The pulsar equation describing a steady and axisymmetric magnetosphere is derived, which now admits solutions with corrections. We derive the first-order non-linear corrections to the near-zone dipole magnetosphere in some popular non-linear effective theories. The field lines of the corrected dipole tend to converge on the rotational axis so that the fields in the polar region are stronger compared to the pure dipole case.
12 pages, 1 figure
References in corpus (8)
- Physics of Strongly Magnetized Neutron Stars
- Atmosphere Models of Magnetized Neutron Stars: QED Effects, Radiation Spectra, and Polarization Signals
- First results from the new PVLAS apparatus: a new limit on vacuum magnetic birefringence
- Membrane Paradigm and Holographic DC Conductivity for Nonlinear Electrodynamics
- Opacities for Photon Splitting and Pair Creation in Neutron Star Magnetospheres
- Born-Infeld magnetars: larger than classical toroidal magnetic fields and implications for gravitational-wave astronomy
- Magnetars as Astrophysical Laboratories of Extreme Quantum Electrodynamics: The Case for a Compton Telescope
- Strongly magnetized rotating dipole in general relativity