424 citations · 4.1k across the 75 of their papers we have counts for
17 papers · 1 filter
HelioSwarm: A Multipoint, Multiscale Mission to Characterize Turbulence
Kristopher G. Klein, Harlan Spence, Olga Alexandrova +47
HelioSwarm (HS) is a NASA Medium-Class Explorer mission of the Heliophysics Division designed to explore the dynamic three-dimensional mechanisms controlling the physics of plasma…
Phase Space Energization of Ions in Oblique Shocks
James Juno, Collin R. Brown, Gregory G. Howes +5
Examining energization of kinetic plasmas in phase space is a growing topic of interest, owing to the wealth of data in phase space compared to traditional bulk energization diagno…
Whistler Waves As a Signature of Converging Magnetic Holes in Space Plasmas
Wence Jiang, Daniel Verscharen, Hui Li +2
Magnetic holes are plasma structures that trap a large number of particles in a magnetic field that is weaker than the field in its surroundings. The unprecedented high time-resolu…
Nonlinear Interactions in Spherically Polarized Alfvénic Turbulence
Trevor A. Bowen, Samuel T. Badman, Stuart D. Bale +8
Turbulent magnetic field fluctuations observed in the solar wind often maintain a constant magnitude condition accompanied by spherically polarized velocity fluctuations; these sig…
A Field-Particle Correlation Analysis of a Perpendicular Magnetized Collisionless Shock
James Juno, Gregory G. Howes, Jason M. TenBarge +5
Using the field-particle correlation technique, we examine the particle energization in a 1D-2V continuum Vlasov--Maxwell simulation of a perpendicular magnetized collisionless sho…
Diagnosing collisionless energy transfer using field-particle correlations: Alfven-Ion Cyclotron Turbulence
Kristopher G. Klein, Gregory G. Howes, Jason M. TenBarge +1
We apply field-particle correlations -- a technique that tracks the time-averaged velocity-space structure of the energy density transfer rate between electromagnetic fields and pl…
Ion versus electron heating in compressively driven astrophysical gyrokinetic turbulence
Y. Kawazura, A. A. Schekochihin, M. Barnes +4
The partition of irreversible heating between ions and electrons in compressively driven (but subsonic) collisionless turbulence is investigated by means of nonlinear hybrid gyroki…
Challenges and the next transformative steps in understanding plasma turbulence from the perspective of multi-spacecraft measurements
Li-Jen Chen, Naoki Bessho, Jay A. Bookbinder +18
We have become heavily reliant on electrical technologies, from power grids to GPS to wireless communication. Any disruption of these systems will have severe global consequences.…
Collisionless energy transfer in kinetic turbulence: field-particle correlations in Fourier space
Tak Chu Li, Gregory G. Howes, Kristopher G. Klein +2
Turbulence is ubiquitously observed in nearly collisionless heliospheric plasmas, including the solar wind and corona and the Earth's magnetosphere. Understanding the collisionless…
[Plasma 2020 Decadal] Multipoint Measurements of the Solar Wind: A Proposed Advance for Studying Magnetized Turbulence
K. G. Klein, O. Alexandrova, J. Bookbinder +21
A multi-institutional, multi-national science team will soon submit a NASA proposal to build a constellation of spacecraft to fly into the near-Earth solar wind in a swarm spanning…
Stochastic proton heating by kinetic-Alfvén-wave turbulence in moderately high- plasmas
Ian W. Hoppock, Benjamin D. G. Chandran, Kristopher G. Klein +2
Stochastic heating refers to an increase in the average magnetic moment of charged particles interacting with electromagnetic fluctuations whose frequencies are smaller than the pa…
Interplay between intermittency and dissipation in collisionless plasma turbulence
Alfred Mallet, Kristopher G. Klein, Benjamin D. G. Chandran +5
We study the damping of collisionless Alfvénic turbulence by two mechanisms: stochastic heating (whose efficiency depends on the local turbulence amplitude ) and linear Landa…
The statistical properties of solar wind temperature parameters near 1 AU
Lynn B. Wilson, Michael L. Stevens, Justin C. Kasper +6
We present a long-duration (10 years) statistical analysis of the temperatures, plasma betas, and temperature ratios for the electron, proton, and alpha-particle populations…
Spatially Localized Particle Energization by Landau Damping in Current Sheets Produced by Strong Alfven Wave Collisions
Gregory G. Howes, Andrew J. McCubbin, Kristopher G. Klein
Understanding the removal of energy from turbulent fluctuations in a magnetized plasma and the consequent energization of the constituent plasma particles is a major goal of heliop…
Diagnosing collisionless energy transfer using field-particle correlations: gyrokinetic turbulence
Kristopher G. Klein, Gregory G. Howes, Jason M. TenBarge
Determining the physical mechanisms that extract energy from turbulent fluctuations in weakly collisional magnetized plasmas is necessary for a more complete characterization of th…
Characterizing Fluid and Kinetic Instabilities using Field-Particle Correlations on Single-Point Time Series
Kristopher G Klein
A recently proposed technique correlating electric fields and particle velocity distributions is applied to single-point time series extracted from linearly unstable, electrostatic…
Physical Interpretation of the Angle Dependent Magnetic Helicity Spectrum in the Solar Wind: The Nature of Turbulent Fluctuations near the Proton Gyroradius Scale
Kristopher G. Klein, Gregory G. Howes, Jason M. TenBarge +1
Motivated by recent observations of distinct parallel and perpendicular signatures in magnetic helicity measurements segregated by wave period and angle between the local magnetic…