Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Juno, James"'
General relativistic Riemann solvers are typically complex, fragile and unwieldy, at least in comparison to their special relativistic counterparts. In this paper, we present a new high-resolution shock-capturing algorithm on curved spacetimes that e
Externí odkaz:
http://arxiv.org/abs/2410.02549
Autor:
Conley, Sarah A., Juno, James, TenBarge, Jason M., Barbhuiya, M. Hasan, Cassak, Paul A., Howes, Gregory G., Lichko, Emily
Energy transport in weakly collisional plasma systems is often studied with fluid models and diagnostics. However, the applicability of fluid models is necessarily limited when collisions are weak or absent, and using a fluid approach can obscure kin
Externí odkaz:
http://arxiv.org/abs/2408.06508
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
Autor:
Edyvean, Jago, Parashar, Tulasi N., Simpson, Tom, Juno, James, Delzanno, Gian Luca, Guo, Fan, Koshkarov, Oleksandr, Matthaeus, William H, Shay, Michael, Yang, Yan
Understanding plasma turbulence requires a synthesis of experiments, observations, theory, and simulations. In the case of kinetic plasmas such as the solar wind, the lack of collisions renders the fluid closures such as viscosity meaningless and one
Externí odkaz:
http://arxiv.org/abs/2404.12105
The Rayleigh-Taylor (RT) instability is ubiquitously observed, yet has traditionally been studied using ideal fluid models. Collisionality can vary strongly across the fluid interface, and previous work demonstrates the necessity of kinetic models to
Externí odkaz:
http://arxiv.org/abs/2403.09591
Autor:
Bose, Sayak, TenBarge, Jason M., Carter, Troy, Hahn, Michael, Ji, Hantao, Juno, James, Savin, Daniel Wolf, Tripathi, Shreekrishna, Vincena, Stephen
We report the first experimental detection of a reflected Alfv\'en wave from an Alfv\'en-speed gradient under conditions similar to those in coronal holes. The experiments were conducted in the Large Plasma Device at the University of California, Los
Externí odkaz:
http://arxiv.org/abs/2402.06193
Particle energization due to magnetic reconnection is an important unsolved problem for myriad space and astrophysical plasmas. Electron energization in magnetic reconnection has traditionally been examined from a particle, or Lagrangian, perspective
Externí odkaz:
http://arxiv.org/abs/2310.17480
We analyze the generation of kinetic instabilities and their effect on the energization of ions in non-relativistic, oblique collisionless shocks using a 3D-3V simulation by $\texttt{dHybridR}$, a hybrid particle-in-cell code. At sufficiently high Ma
Externí odkaz:
http://arxiv.org/abs/2211.15786
Autor:
Juno, James, Brown, Collin R., Howes, Gregory G., Haggerty, Colby C., TenBarge, Jason M., Wilson III, Lynn B., Caprioli, Damiano, Klein, Kristopher G.
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 diagnostics. Via the field-particle correlation (FPC) technique and using mu
Externí odkaz:
http://arxiv.org/abs/2211.15340
Autor:
Cagas, Petr, Juno, James, Hakim, Ammar, LaJoie, Andrew, Chu, Feng, Langendorf, Samuel, Srinivasan, Bhuvana
This work studies the interaction between colliding plasma jets to understand regimes in which jet merging results in shock formation versus regimes in which the shock formation is mitigated due to the collisionless interpenetration of the jets. A ki
Externí odkaz:
http://arxiv.org/abs/2211.10503