188 citations · 658 across the 15 of their papers we have counts for
15 papers
Nonlinear Damping and Field-aligned Flows of Propagating Shear Alfvén Waves with Braginskii Viscosity
Alexander J. B. Russell
Braginskii MHD provides a more accurate description of many plasma environments than classical MHD since it actively treats the stress tensor using a closure derived from physical…
Evolution, structure and topology of self-generated turbulent reconnection layers
Raheem Beg, Alexander J. B. Russell, Gunnar Hornig
We present a 3D MHD simulation of two merging flux ropes exhibiting self-generated and self-sustaining turbulent reconnection (SGTR) that is fully 3D and fast. The exploration of S…
Evolution of Field Line Helicity in Magnetic Relaxation
A. R. Yeates, A. J. B. Russell, G. Hornig
Plasma relaxation in the presence of an initially braided magnetic field can lead to self-organization into relaxed states that retain non-trivial magnetic structure. These relaxed…
Field linkage and magnetic helicity density
K. Lund, M. Jardine, A. J. B. Russell +3
The helicity of a magnetic field is a fundamental property that is conserved in ideal MHD. It can be explored in the stellar context by mapping large-scale magnetic fields across s…
A Hydrodynamic Model of Alfvénic Wave Heating in a Coronal Loop and its Chromospheric Footpoints
Jeffrey W. Reep, Alexander J. B. Russell, Lucas A. Tarr +1
Alfvénic waves have been proposed as an important energy transport mechanism in coronal loops, capable of delivering energy to both the corona and chromosphere and giving rise to m…
75th Anniversary of `Existence of Electromagnetic-Hydrodynamic Waves'
Alexander J. B. Russell
We have recently passed the 75th anniversary of one of the most important results in solar and space physics: Hannes Alfvén's discovery of Alfvén waves and the Alfvén speed. To cel…
Science Objective: Understanding Energy Transport by Alfvénic Waves in Solar Flares
Jeffrey W. Reep, Harry P. Warren, James E. Leake +4
Solar flares are driven by the release of magnetic energy from reconnection events in the solar corona, whereafter energy is transported to the chromosphere, heating the plasma and…
Simulations of the Mg II k and Ca II 8542 lines from an Alfvén Wave-heated flare chromosphere
Graham S. Kerr, Lyndsay Fletcher, Alexander J. B. Russell +1
We use radiation hydrodynamic simulations to examine two models of solar flare chromospheric heating: Alfvén wave dissipation and electron beam collisional losses. Both mechanisms…
Sunquake Generation by Coronal Magnetic Restructuring
Alexander J. B. Russell, Michaela K. Mooney, James E. Leake +1
Sunquakes are the surface signatures of acoustic waves in the Sun's interior that are produced by some but not all flares and coronal mass ejections (CMEs). This paper explores a m…
Alfvénic Wave Heating of the Upper Chromosphere in Flares
Jeffrey W. Reep, Alexander J. B. Russell
We have developed a numerical model of flare heating due to the dissipation of Alfvénic waves propagating from the corona to the chromosphere. With this model, we present an invest…
A unified view of coronal loop contraction and oscillation in flares
Alexander J. B. Russell, Paulos J. A. Simoes, Lyndsay Fletcher
Context: Transverse loop oscillations and loop contractions are commonly associated with solar flares, but the two types of motion have traditionally been regarded as separate phen…
Evolution of field line helicity during magnetic reconnection
Alexander J. B. Russell, Anthony R. Yeates, Gunnar Hornig +1
We investigate the evolution of field line helicity for magnetic fields that connect two boundaries without null points, with emphasis on localized finite-B magnetic reconnection.…
Planetary protection in the extreme environments of low-mass stars
A. A. Vidotto, M. Jardine, J. Morin +3
Recent results showed that the magnetic field of M-dwarf (dM) stars, currently the main targets in searches for terrestrial planets, is very different from the solar one, both in t…
Implosion of coronal loops during the impulsive phase of a solar flare
P. J. A. Simões, L. Fletcher, H. S. Hudson +1
We study the relationship between implosive motions in a solar flare, and the energy redistribution in the form of oscillatory structures and particle acceleration. The flare SOL20…
Effects of M dwarf magnetic fields on potentially habitable planets
A. A. Vidotto, M. Jardine, J. Morin +3
We investigate the effect of the magnetic fields of M dwarf (dM) stars on potentially habitable Earth-like planets. These fields can reduce the size of planetary magnetospheres to…