Results 21 to 30 of about 392 (54)

Energy transfer, pressure tensor and heating of kinetic plasma

, 2017
Kinetic plasma turbulence cascade spans multiple scales ranging from macroscopic fluid flow to sub-electron scales. Mechanisms that dissipate large scale energy, terminate the inertial range cascade and convert kinetic energy into heat are hotly debated.
Chen, S., Daughton, W., Haggerty, C. C., Matthaeus, W. H., Parashar, T. N., Roytershteyn, V., Shi, Y., Wan, M., Yang, Y.   +8 more
core   +1 more source

Spectral evolution of two-dimensional kinetic plasma turbulence in the wavenumber-frequency domain

, 2013
We present a method for studying the evolution of plasma turbulence by tracking dispersion relations in the energy spectrum in the wavenumber-frequency domain. We apply hybrid plasma simulations in a simplified two-dimensional geometry to demonstrate our
Comişel, H., Motschmann, U., Narita, Y., Verscharen, D.   +3 more
core   +1 more source

Constraining the Nordtvedt parameter with the BepiColombo Radioscience experiment [PDF]

, 2016
BepiColombo is a joint ESA/JAXA mission to Mercury with challenging objectives regarding geophysics, geodesy and fundamental physics. The Mercury Orbiter Radioscience Experiment (MORE) is one of the on-board experiments, including three different but ...
De Marchi, Fabrizio, Milani, Andrea, Schettino, Giulia, Tommei, Giacomo   +3 more
core   +2 more sources

Towards Space Solar Power - Examining Atmospheric Interactions of Power Beams with the HAARP Facility

, 2014
In the most common space solar power (SSP) system architectures, solar energy harvested by large satellites in geostationary orbit is transmitted to Earth via microwave radiation.
Cowley, A., Leitgab, M.
core   +1 more source

The Puzzle of the Flyby Anomaly

, 2009
Close planetary flybys are frequently employed as a technique to place spacecraft on extreme solar system trajectories that would otherwise require much larger booster vehicles or may not even be feasible when relying solely on chemical propulsion.
B. Tapley, C. Edwards, C. Lämmerzahl, E.T. Whittaker, J.A. Allen Van, J.D. Anderson, J.D. Anderson, J.D. Anderson, J.D. Anderson, J.V. Breakwell, L. Euler, L. Euler, L. Euler, M. Soffel, R.H. Battin, S.G. Turyshev, Slava G. Turyshev, T.D. Moyer, V.T. Toth, Viktor T. Toth   +19 more
core   +1 more source

Chameleon effect and the Pioneer anomaly

, 2012
The possibility that the apparent anomalous acceleration of the Pioneer 10 and 11 spacecraft may be due, at least in part, to a chameleon field effect is examined.
J. R. Morris, John D. Anderson, S. G. Turyshev   +2 more
core   +1 more source

Alfven Wave Collisions, The Fundamental Building Block of Plasma Turbulence II: Numerical Solution

, 2013
This paper presents the numerical verification of an asymptotic analytical solution for the nonlinear interaction between counterpropagating Alfven waves, the fundamental building block of astrophysical plasma turbulence. The analytical solution, derived
Dorland, William, Howes, Gregory G., Nielson, Kevin D.   +2 more
core   +1 more source

Electromagnetic cyclotron instabilities in bi-Kappa distributed plasmas : a quasilinear approach [PDF]

, 2017
Anisotropic bi-Kappa distributed plasmas, as encountered in the solar wind and planetary magnetospheres,are susceptible to a variety of kinetic instabilities including the cyclotron instabilities driven by an excess ofperpendicular temperature T⊥ > T ...
B. Eliasson, Lazar M., M. Lazar, P. H. Yoon, Sagdeev R. Z., Trakhtengerts V. Y.   +5 more
core   +1 more source

Beyond Gibbs-Boltzmann-Shannon: General Entropies -- The Gibbs-Lorentzian Example

, 2014
We propose a generalisation of Gibbs' statistical mechanics into the domain of non-negligible phase space correlations. Derived are the probability distribution and entropy as a generalised ensemble average, replacing Gibbs-Boltzmann-Shannon's entropy ...
Baumjohann, W., Treumann, R. A.
core   +2 more sources

THE THREE-DIMENSIONAL EVOLUTION OF ION-SCALE CURRENT SHEETS: TEARING AND DRIFT-KINK INSTABILITIES IN THE PRESENCE OF PROTON TEMPERATURE ANISOTROPY [PDF]

, 2014
We present the first three-dimensional hybrid simulations of the evolution of ion-scale current sheets, with an investigation of the role of temperature anisotropy and associated kinetic instabilities on the growth of the tearing instability and particle
Bale S. D., Borovsky J. E., D. Burgess, Drake J. F., Gosling J. T., Haynes C. T., Hellinger P., Kunz M. W., L. Matteini, Matteini L., Osman K. T., Osman K. T., Osman K. T., P. W. Gingell, Riquelme M. A., Schekochihin A. A., Servidio S., Servidio S., Sharma P., Swisdak M., Wicks R. T., Yin L., Zhdankin V.   +22 more
core   +2 more sources