Zobrazeno 1 - 10
of 207
pro vyhledávání: '"Klein, Kristopher"'
Electron Influence on the Parallel Proton Firehose Instability in 10-Moment, Multi-Fluid Simulations
Instabilities driven by pressure anisotropy play a critical role in modulating the energy transfer in space and astrophysical plasmas. For the first time, we simulate the evolution and saturation of the parallel proton firehose instability using a mu
Externí odkaz:
http://arxiv.org/abs/2408.04788
Minor ions in the solar corona are heated to extreme temperatures, far in excess of those of the electrons and protons that comprise the bulk of the plasma. These highly non-thermal distributions make minor ions sensitive probes of the underlying col
Externí odkaz:
http://arxiv.org/abs/2408.04703
Autor:
Lewis, Harry C., Stawarz, Julia E., Matteini, Lorenzo, Franci, Luca, Klein, Kristopher G., Wicks, Robert T., Salem, Chadi S., Horbury, Timothy S., Wang, Joseph H.
Plasma in the terrestrial magnetosheath is characterised by very weak particle-particle collisions, so kinetic microinstabilities are thought to be responsible for regulating the thermodynamics of the plasma. By exciting electromagnetic waves, these
Externí odkaz:
http://arxiv.org/abs/2407.20844
Autor:
Pecora, Francesco, Pucci, Francesco, Malara, Francesco, Klein, Kristopher G., Marcucci, Maria Federica, Retinò, Alessandro, Matthaeus, William
Plasma turbulence involves complex, nonlinear interactions of electromagnetic fields and charged particles across multiple scales. Studying these phenomena in space plasmas, like the solar wind, is facilitated by the intrinsic scale separations and t
Externí odkaz:
http://arxiv.org/abs/2407.06679
Circularly polarized waves consistent with parallel-propagating ion cyclotron waves (ICWs) and fast magnetosonic waves (FMWs) are often observed by Parker Solar Probe (PSP) at ion kinetic scales. Such waves damp energy via the cyclotron resonance, wi
Externí odkaz:
http://arxiv.org/abs/2407.02708
Autor:
Broeren, Theodore, Klein, Kristopher
When studying turbulence, it is often desirable to be able to estimate the local spatial gradient of a vector quantity using in situ measurements from a small number of irregularly spaced points. While previous studies have focused on the accuracy of
Externí odkaz:
http://arxiv.org/abs/2405.14889
Diffusion coefficients of energetic charged particles in turbulent magnetic fields are a fundamental aspect of diffusive transport theory but remain incompletely understood. In this work, we use quasi-linear theory to evaluate the spatial variation o
Externí odkaz:
http://arxiv.org/abs/2403.08141
Autor:
Gorman, Waverly, Klein, Kristopher G.
Characterizing the thermodynamics of turbulent plasmas is key to decoding observable signatures from astrophysical systems. In magnetohydrodynamic (MHD) turbulence, nonlinear interactions between counter-propagating Alfv\'en waves cascade energy to s
Externí odkaz:
http://arxiv.org/abs/2402.17044
Autor:
McManus, Michael D., Klein, Kristopher G., Larson, Davin, Bale, Stuart D., Bowen, Trevor A., Huang, Jia, Livi, Roberto, Rahmati, Ali, Romeo, Orlando, Verniero, Jaye, Whittlesey, Phyllis
Ion scale wave events or "wave storms" in the solar wind are characterised by enhancements in magnetic field fluctuations as well as coherent magnetic field polarisation signatures at or around the local ion cyclotron frequencies. In this paper we st
Externí odkaz:
http://arxiv.org/abs/2310.14136
Autor:
Walters, Jada, Klein, Kristopher G., Lichko, Emily, Stevens, Michael L., Verscharen, Daniel, Chandran, Benjamin D. G.
In this work, we investigate how the complex structure found in solar wind proton velocity distribution functions (VDFs), rather than the commonly assumed two-component bi-Maxwellian structure, affects the onset and evolution of parallel-propagating
Externí odkaz:
http://arxiv.org/abs/2308.14944