127 citations · 511 across the 14 of their papers we have counts for
17 papers
Wave-Growth-Limited Particle Confinement in a Near-Parallel Interplanetary Shock Observed by Parker Solar Probe
A. Kouloumvakos, I. C. Jebaraj, M. A. Malkov +11
Collisionless shocks confine the particles they accelerate with the upstream wave field they themselves drive. Streaming particles resonantly amplify Alfvén waves, and the waves th…
Does Diffusive Shock Acceleration Reach Steady State? Insights from a Near-Sun Shock Observed by Parker Solar Probe
Immanuel Christopher Jebaraj, Mikhail Malkov, Nicolas Wijsen +7
Collisionless shocks accelerate particles at a rate set by the diffusion coefficient of those particles in waves they themselves generate. Theory fixes that coefficient only in ste…
The Wave-Regulated Precursor of a Near-Parallel Interplanetary Shock Observed by Parker Solar Probe
Immanuel Christopher Jebaraj, Lucas Colomban, Oleksiy Agapitov +7
Diffusive shock acceleration, at shocks from coronal mass ejections to supernova-remnant blast waves, presupposes a scattering wave field that the accelerated particles themselves…
Magnetic Pumping: Plasma Heating to Particle Acceleration
Mikhail Malkov, Immanuel Jebaraj
One of the earliest mechanisms proposed for plasma heating was magnetic pumping (MP). However, its significance for astrophysical phenomena, including particle acceleration, has ye…
Turbulence-Driven Corrugation of Collisionless Fast-Magnetosonic Shocks
Immanuel Christopher Jebaraj, Mikhail Malkov, Nicolas Wijsen +4
Collisionless fast-magnetosonic shocks are often treated as smooth, planar boundaries, yet observations point to organized corrugation of the shock surface. A plausible driver is u…
Flat Spectra of Energetic Particles in Interplanetary Shock Precursors
Mikhail Malkov, Joe Giacalone, Fan Guo
The observed energy spectra of accelerated particles at interplanetary shocks often do not match the diffusive shock acceleration (DSA) theory predictions. In some cases, the parti…
Ion-acoustic Shocks with Self-Regulated Ion Reflection and Acceleration
M. A. Malkov, R. Z. Sagdeev, G. I. Dudnikova +5
An analytic solution describing an ion-acoustic collisionless shock, self-consistently with the evolution of shock-reflected ions, is obtained. The solution extends the classic sol…
Cosmic Ray Confinement and Transport Models for Probing their Putative Sources
M. A. Malkov
Recent efforts in cosmic ray (CR) confinement and transport theory are discussed. Three problems are addressed as being crucial for understanding the present day observations and t…
Cosmic Ray Transport with Magnetic Focusing and the "Telegraph" model
Mikhail Malkov, Roald Sagdeev
Cosmic rays (CR), constrained by scattering on magnetic irregularities, are believed to propagate diffusively. But a well-known defect of diffusive approximation whereby some of th…
Collisionless shocks in partly ionized plasma with cosmic rays: microphysics of non-thermal components
A. M. Bykov, M. A. Malkov, J. C. Raymond +2
In this review we discuss some observational aspects and theoretical models of astrophysical collisionless shocks in partly ionized plasma with the presence of non-thermal componen…
Proton-Helium Spectral Anomaly as a Signature of Cosmic Ray Accelerator
M. A. Malkov, P. H. Diamond, R. Z. Sagdeev
The much-anticipated proof of cosmic ray (CR) acceleration in supernova remnants (SNR) must hinge on full consistency of acceleration theory with the observations; direct proof is…
Probing Nearby CR Accelerators and ISM Turbulence with Milagro Hot Spots
M. A. Malkov, P. H. Diamond, L. 'O. C. Drury +1
Both the acceleration of cosmic rays (CR) in supernova remnant shocks and their subsequent propagation through the random magnetic field of the Galaxy deem to result in an almost i…
On the possible reason for non-detection of TeV-protons in SNRs
M. A. Malkov, P. H. Diamond, T. W. Jones
The theory of shock acceleration predicts the maximum particle energy to be limited only by the acceleration time and the size (geometry) of the shock. This led to optimistic estim…
Ion leakage from quasiparallel collisionless shocks: implications for injection and shock dissipation
M. A. Malkov
A simplified model of particle transport at a quasiparallel one-dimensional collisionless shock is suggested. In this model the MHD-turbulence behind the shock is dominated by a ci…
Bifurcation, efficiency, and the role of injection in shock acceleration with the Bohm diffusion
M. A. Malkov
The efficiency and uniqueness of the diffusive shock acceleration is studied on the basis of the novel kinetic solutions. These solutions obtained earlier (paper I, astro-ph/970715…
Analytic solution for nonlinear shock acceleration in the Bohm limit
M. A. Malkov
The selfconsistent steady state solution for a strong shock, significantly modified by accelerated particles is obtained on the level of a kinetic description, assuming Bohm-type d…
Spatial chaos in weakly dispersive and viscous media: a nonperturbative theory of the driven KdV-Burgers equation
M. A. Malkov
The asymptotic travelling wave solution of the KdV-Burgers equation driven by the long scale periodic driver is constructed. The solution represents a shock-train in which the quas…