954 citations · 4.5k across the 64 of their papers we have counts for
65 papers
The Structure of Poloidal Fields Embedded in Thin Disks
Yossef Zenati, Ethan T. Vishniac, Amir Jafari
Many accreting systems are modeled as geometrically thin disks. Simulations of accretion disks cannot be extended to this regime, although local models can address the behavior of…
Magnetic helicity fluxes in dynamos from rotating inhomogeneous turbulence
Axel Brandenburg, Ethan T. Vishniac
We analyze direct numerical simulations of large-scale dynamos in inhomogeneous nonhelically driven rotating turbulence with and without shear. The forcing is modulated so that the…
Sub-Alfvenic Turbulence: Magnetic to Kinetic Energy Ratio, Modification of Weak Cascade and Implications for Magnetic Field Strength Measurement
Alex Lazarian, Ka Wai HO, Ka Ho Yuen +1
We study the properties of sub-Alfvenic magnetohydrodynamic (MHD) turbulence, i.e., turbulence with Alfven Mach number , where is the velocity at the injection…
Conserving Local Magnetic Helicity in Numerical Simulations
Yossef Zenati, Ethan T. Vishniac
Magnetic helicity is robustly conserved in systems with very large magnetic Reynolds numbers, including most systems of astrophysical interest, and unlike kinetic and magnetic ener…
Major Scientific Challenges and Opportunities in Understanding Magnetic Reconnection and Related Explosive Phenomena in Solar and Heliospheric Plasmas
H. Ji, J. Karpen, A. Alt +105
Magnetic reconnection underlies many explosive phenomena in the heliosphere and in laboratory plasmas. The new research capabilities in theory/simulations, observations, and labora…
Nanoflare Theory Revisited
Amir Jafari, Ethan Vishniac, Siyao Xu
Local magnetic reversals are an inseparable part of magnetohydrodynamic (MHD) turbulence whose collective outcome on an arbitrary scale in the inertial range may lead to a global s…