64 citations · 388 across the 12 of their papers we have counts for
9 papers · 1 filter
Signatures of Secondary Collisionless Magnetic Reconnection Driven by Kink Instability of a Flux Rope
S. Markidis, G. Lapenta, G. L. Delzanno +5
The kinetic features of secondary magnetic reconnection in a single flux rope undergoing internal kink instability are studied by means of three-dimensional Particle-in-Cell simula…
Separatrices: the crux of reconnection
Giovanni Lapenta, Stefano Markidis, Andrey Divin +2
Reconnection is one of the key processes in astrophysical and laboratory plasmas: it is the opposite of a dynamo. Looking at energy, a dynamo transforms kinetic energy in magnetic…
Electromagnetic Energy Conversion in Downstream Fronts from 3D Kinetic Reconnection
Giovanni Lapenta, Martin Goldman, David Newman +2
The electromagnetic energy equation is analyzed term by term in a 3D simulation of kinetic reconnection previously reported by \citet{vapirev2013formation}. The evolution presents…
Kinetic Simulations of Plasmoid Chain Dynamics
Stefano Markidis, Pierre Henri, Giovanni Lapenta +4
The dynamics of a plasmoid chain is studied with three dimensional Particle-in-Cell simulations. The evolution of the system with and without a uniform guide field, whose strength…
Collisionless magnetic reconnection in a plasmoid chain
Stefano Markidis, Pierre Henri, Giovanni Lapenta +4
The kinetic features of plasmoid chain formation and evolution are investigated by two dimensional Particle-in-Cell simulations. Magnetic reconnection is initiated in multiple X po…
Bipolar Electric Field Signatures of Reconnection Separatrices for a Hydrogen Plasma at Realistic Guide Fields
G. Lapenta, S. Markidis, A. Divin +2
In preparation for the MMS mission we ask the question: how common are bipolar signatures linked to the presence of electron holes along separatrices emanating from reconnection re…
Kinetic simulations of magnetic reconnection in presence of a background O+ population
Stefano Markidis, Giovanni Lapenta, Lapo Bettarini +3
Particle-in-Cell simulations of magnetic reconnection with an H+ current sheet and a mixed background plasma of H+ and O+ ions are completed using physical mass ratios. Four main r…
Buneman instability in a magnetized current-carrying plasma with velocity shear
H. Che, M. V. Goldman, D. L. Newman
Buneman instability is often driven in magnetic reconnection. Understanding how velocity shear in the beams driving the Buneman instability affects the growth and saturation of wav…
Jet deflection by very weak guide fields during magnetic reconnection
Martin Goldman, Giovanni Lapenta, David Newman +2
Simulations of antiparallel reconnection have shown collimated electron jets outflowing from the x-point, and associated highly elongated "outer electron diffusion regions." New PI…