5 papers
Magnetic reconnection as an Adler-Ohmic bifurcation: The topological origin of Bohm resistivity
Magnus F Ivarsen
The physical origin of 'anomalous' resistivity in magnetic reconnection remains one of the longest-standing problems in space plasma physics. While the empirical Bohm diffusion sca…
Kinetic Turing Instability and Emergent Spectral Scaling in Chiral Active Turbulence
Magnus F Ivarsen
The spontaneous emergence of coherent structures from chaotic backgrounds is a hallmark of active biological swarms. We investigate this self-organization by simulating an ensemble…
Meter-scale Observations of Equatorial Plasma Turbulence
Magnus F Ivarsen, Lasse B N Clausen, Yaqi Jin +1
The multi-Needle Langmuir Probe collects an electron current through four fixed-bias cylindrical copper needles. This allows for an extremely high sampling frequency, with plasma p…
A Characteristic Signature of Magnetospheric Wave-Particle Interactions Found in the Turbulent E-region
Magnus F Ivarsen, Yukinaga Miyashita, Jean-Pierre St-Maurice +16
Plasma waves in the magnetosphere scatter electrons, causing them to precipitate into Earth's atmosphere, imparting their temporal characteristics to diffuse auroras. In a case stu…
Eastward Transients in the Dayside Ionosphere II: A Parallel-plate Capacitor-Like Effect
Magnus F Ivarsen, Jean-Pierre St-Maurice, Glenn C Hussey +5
During the 23 April 2023 geospace storm, we observed chorus wave-driven, energetic particle precipitation on closed magnetic field lines in the dayside magnetosphere. Simultaneousl…