Magnetogenesis by Wave-Driven Momentum Exchange
arXiv:2008.03384 · doi:10.3847/1538-4357/abc4e8
Abstract
When multiple species interact with an electrostatic ion acoustic wave, they can exchange momentum, despite the lack of momentum in the field itself. The resulting force on the electrons can have a curl, and thus give rise to compensating electric fields with curl on magnetohydrodynamic timescales. As a result, a magnetic field can be generated. Surprisingly, in some astrophysical settings, this mechanism can seed magnetic fields with growth rates even larger than through the traditional Biermann battery.
arXiv comment9 pages, 1 figure
References in corpus (18)
- Origin of Galactic and Extragalactic Magnetic Fields
- The Protogalactic Origin for Cosmic Magnetic Fields
- Generation of the Primordial Magnetic Fields during Cosmological Reionization
- Current status of turbulent dynamo theory: From large-scale to small-scale dynamos
- Cluster magnetic fields from large-scale-structure and galaxy-cluster shocks
- Resistive Magnetic Field Generation at Cosmic Dawn
- Generation of Primordial Magnetic Fields on Linear Over-density Scales
- Biermann Mechanism in Primordial Supernova Remnant and Seed Magnetic Fields
- Axiomatic geometrical optics, Abraham-Minkowski controversy, and photon properties derived classically
- Magnetic field generation and amplification in an expanding plasma
- Generation of large-scale magnetic fields by small-scale dynamo in shear flows
- Fluctuation dynamo in a weakly collisional plasma
- Seed Magnetic Fields Generated by Primordial Supernova Explosions
- Electromagnetic field generation in the downstream of electrostatic shocks due to electron trapping
- Long-Term Evolution of Supernova Remnants in Magnetized Interstellar Medium
- Radiation in equilibrium with plasma and plasma effects on cosmic microwave background
- Magnetic field generation by an inhomogeneous return current
- Momentum-Exchange Current Drive by Electrostatic Waves in an Unmagnetized Collisionless Plasma
Cited by in corpus (5)
- Suppression of Bremsstrahlung losses from relativistic plasma with energy cutoff
- Wave propagation in rotating magnetised plasmas
- Momentum Conservation in Current Drive and Alpha-Channeling-Mediated Rotation Drive
- Wave-Driven Torques to Drive Current and Rotation
- Ponderomotive Recoil for Electromagnetic Waves