The Biermann battery driven by a streaming plasma
arXiv:2103.01388 · doi:10.3847/1538-4357/abec41
Abstract
The Biermann battery is a promising generation mechanism of a seed magnetic field in the universe. We propose a new driving mechanism for the Biermann battery in an inhomogeneous plasma with a beam component. An inhomogeneous electron flow induced by the return current can make an electron pressure gradient which is not parallel to the density gradient. As a result, the magnetic field is generated by the Biermann battery. We demonstrate the new generation mechanism of the magnetic field by conducting three-fluid plasma simulations. By this mechanism, the first cosmic rays can generate the seed magnetic field with astrophysical scales at redshift around 20.
6 pages, 3 figures, accepted for publication in ApJ
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Cited by in corpus (5)
- Non-ideal magnetohydrodynamic simulations of the first star formation: the effect of ambipolar diffusion
- Self-discharge by streaming cosmic rays
- Resistive Heating Induced by Streaming Cosmic Rays Around a Galaxy in the Early Universe
- Biermann Battery Powered by Resistive Heating Induced by Cosmic Ray Streaming
- Magnetic field generation by charge exchange in a supernova remnant in the early universe