249 citations · 1.7k across the 41 of their papers we have counts for
13 papers · 1 filter
Relativistic Chiral MHD with application to the early Universe
Deepen Garg, Jennifer Schober
We present a systematic derivation of the equations of relativistic chiral magnetohydrodynamics (MHD) for a plasma of charged fermions in an expanding universe. Through a combinati…
A charge-flow instability in plasmas with charge fluctuations
Deepen Garg, Jennifer Schober
We present a linear instability in magnetized plasmas with charge fluctuations. It is driven by an electric current proportional to the charge chemical potential and the bulk v…
The effect of pressure-anisotropy-driven kinetic instabilities on magnetic field amplification in galaxy clusters
Y. Rappaz, J. Schober
The intracluster medium (ICM) is the low-density diffuse magnetized plasma in galaxy clusters, which reaches virial temperatures of up to 10^8 K. Under these conditions, the plasma…
Relic gravitational waves from the chiral magnetic effect
Axel Brandenburg, Yutong He, Tina Kahniashvili +2
Relic gravitational waves (GWs) can be produced by primordial magnetic fields. However, not much is known about the resulting GW amplitudes and their dependence on the details of t…
The turbulent chiral-magnetic cascade in the early universe
Axel Brandenburg, Jennifer Schober, Igor Rogachevskii +5
The presence of asymmetry between fermions of opposite handedness in plasmas of relativistic particles can lead to exponential growth of a helical magnetic field via a small-scale…
The small-scale dynamo: Breaking universality at high Mach numbers
Dominik R. G. Schleicher, Jennifer Schober, Christoph Federrath +2
(Abridged) The small-scale dynamo may play a substantial role in magnetizing the Universe under a large range of conditions, including subsonic turbulence at low Mach numbers, high…
The Small-Scale Dynamo at Low Magnetic Prandtl Numbers
Jennifer Schober, Dominik Schleicher, Stefano Bovino +1
The present-day Universe is highly magnetized, even though the first magnetic seed fields were most probably extremely weak. To explain the growth of the magnetic field strength ov…
Turbulent magnetic field amplification from the smallest to the largest magnetic Prandtl numbers
Stefano Bovino, Dominik R. G. Schleicher, Jennifer Schober
The small-scale dynamo provides a highly efficient mechanism for the conversion of turbulent into magnetic energy. In astrophysical environments, such turbulence often occurs at hi…
Magnetic fields during high redshift structure formation
Dominik R. G. Schleicher, Muhammad Latif, Jennifer Schober +6
We explore the amplification of magnetic fields in the high-redshift Universe. For this purpose, we perform high-resolution cosmological simulations following the formation of prim…
Small-Scale Dynamo Action in Primordial Halos
Jennifer Schober, Dominik R. G. Schleicher, Ralf S. Klessen +4
The first galaxies form due to gravitational collapse of primordial halos. During this collapse, weak magnetic seed fields get amplified exponentially by the small-scale dynamo - a…
The Small-Scale Dynamo and Non-Ideal MHD in Primordial Star Formation
Jennifer Schober, Dominik Schleicher, Christoph Federrath +3
We study the amplification of magnetic fields during the formation of primordial halos. The turbulence generated by gravitational infall motions during the formation of the first s…
Magnetic fields in the first galaxies: Dynamo amplification and limits from reionization
Dominik R. G. Schleicher, Jennifer Schober, Christoph Federrath +3
We discuss the amplification of magnetic fields by the small-scale dynamo, a process that could efficiently produce strong magnetic fields in the first galaxies. In addition, we de…
Magnetic Field Amplification by Small-Scale Dynamo Action: Dependence on Turbulence Models and Reynolds and Prandtl Numbers
Jennifer Schober, Dominik Schleicher, Christoph Federrath +2
The small-scale dynamo is a process by which turbulent kinetic energy is converted into magnetic energy, and thus is expected to depend crucially on the nature of turbulence. In th…