Astrophysical magnetic fields and nonlinear dynamo theory

A Brandenburg, K Subramanian - Physics Reports, 2005 - Elsevier
The current understanding of astrophysical magnetic fields is reviewed, focusing on their
generation and maintenance by turbulence. In the astrophysical context this generation is …

Magnetic field amplification in galaxy clusters and its simulation

J Donnert, F Vazza, M Brüggen, J ZuHone - Space Science Reviews, 2018 - Springer
We review the present theoretical and numerical understanding of magnetic field
amplification in cosmic large-scale structure, on length scales of galaxy clusters and beyond …

The sonic scale of interstellar turbulence

C Federrath, RS Klessen, L Iapichino, JR Beattie - Nature Astronomy, 2021 - nature.com
Understanding the physics of turbulence is crucial for many applications, including weather,
industry and astrophysics. In the interstellar medium,, supersonic turbulence plays a crucial …

Mach Number Dependence of Turbulent Magnetic Field Amplification:<? format?> Solenoidal versus Compressive Flows

C Federrath, G Chabrier, J Schober, R Banerjee… - Physical Review Letters, 2011 - APS
We study the growth rate and saturation level of the turbulent dynamo in
magnetohydrodynamical simulations of turbulence, driven with solenoidal (divergence-free) …

Magnetic field amplification in turbulent astrophysical plasmas

C Federrath - Journal of Plasma Physics, 2016 - cambridge.org
Magnetic fields play an important role in astrophysical accretion discs and in the interstellar
and intergalactic medium. They drive jets, suppress fragmentation in star-forming clouds and …

A simple law of star formation

P Padoan, T Haugbølle… - The Astrophysical Journal …, 2012 - iopscience.iop.org
We show that supersonic MHD turbulence yields a star formation rate (SFR) as low as
observed in molecular clouds, for characteristic values of the free-fall time divided by the …

Current status of turbulent dynamo theory: from large-scale to small-scale dynamos

A Brandenburg, D Sokoloff, K Subramanian - Space Science Reviews, 2012 - Springer
Several recent advances in turbulent dynamo theory are reviewed. High resolution
simulations of small-scale and large-scale dynamo action in periodic domains are compared …

A robust numerical scheme for highly compressible magnetohydrodynamics: Nonlinear stability, implementation and tests

K Waagan, C Federrath, C Klingenberg - Journal of Computational Physics, 2011 - Elsevier
The ideal MHD equations are a central model in astrophysics, and their solution relies upon
stable numerical schemes. We present an implementation of a new method, which …

Small-scale dynamo action during the formation of the first stars and galaxies-I. The ideal MHD limit

DRG Schleicher, R Banerjee, S Sur… - Astronomy & …, 2010 - aanda.org
We explore the amplification of magnetic seeds during the formation of the first stars and
galaxies. During gravitational collapse, turbulence is created from accretion shocks, which …

Introducing SPHINX-MHD: the impact of primordial magnetic fields on the first galaxies, reionization, and the global 21-cm signal

H Katz, S Martin-Alvarez, J Rosdahl… - Monthly Notices of …, 2021 - academic.oup.com
We present the first results from SPHINX-MHD, a suite of cosmological radiation-
magnetohydrodynamics simulations designed to study the impact of primordial magnetic …