45 citations · 108 across the 8 of their papers we have counts for
8 papers
Flows and magnetic field structures in reconnection regions of simulations of the solar atmosphere: do flux pile-up models work?
S. Shelyag, Y. E. Litvinenko, V. Fedun +3
We study the process of magnetic field annihilation and reconnection in simulations of magnetised solar photosphere and chromosphere with magnetic fields of opposite polarities and…
Sunspot and starspot lifetimes in a turbulent erosion model
Yuri E. Litvinenko, M. S. Wheatland
Quantitative models of sunspot and starspot decay predict the timescale of magnetic diffusion and may yield important constraints in stellar dynamo models. Motivated by recent meas…
The telegraph approximation for focused cosmic-ray transport in the presence of boundaries
Yuri E. Litvinenko, Frederic Effenberger, Reinhard Schlickeiser
Diffusive cosmic-ray transport in nonuniform large-scale magnetic fields in the presence of boundaries is considered. Reflecting and absorbing boundary conditions are derived for a…
Modeling sunspot and starspot decay by turbulent erosion
Yuri E. Litvinenko, M. S. Wheatland
Disintegration of sunspots (and starspots) by fluxtube erosion, originally proposed by Simon and Leighton, is considered. A moving boundary problem is formulated for a nonlinear di…
The Diffusion Approximation vs. the Telegraph Equation for Modeling Solar Energetic Particle Transport with Adiabatic Focusing. I. Isotropic Pitch-angle Scattering
Frederic Effenberger, Yuri E. Litvinenko
The diffusion approximation to the Fokker-Planck equation is commonly used to model the transport of solar energetic particles in interplanetary space. In this study, we present ex…
Analytical solutions of a fractional diffusion-advection equation for solar cosmic-ray transport
Yuri E. Litvinenko, Frederic Effenberger
Motivated by recent applications of superdiffusive transport models to shock-accelerated particle distributions in the heliosphere, we solve analytically a one-dimensional fraction…