Results 71 to 80 of about 9,065 (177)

Post‐Processing Probabilistic Forecasts of the Solar Wind by Data Mining Similar Scenarios

Space Weather, Volume 24, Issue 4, April 2026.
Abstract The solar wind speed at Earth is one of the most important parameters regarding the effects of space weather on society. Thus far, most approaches for predicting the solar wind speed produce a single‐value time series without uncertainty, or utilize ensemble methods which require custom calibration development.
Daniel E. da Silva, Yash Parlikar, Shaela I. Jones, Charles N. Arge   +3 more
wiley   +1 more source

Non-resonant Alfv\'enic instability activated by high temperature of ion beams in compensated-current astrophysical plasmas

, 2018
Context: Compensated-current systems are established in response to hot ion beams in terrestrial foreshock regions, around supernova remnants, and in other space and astrophysical plasmas.
De Keyser, Johan, Malovichko, Pavlo, Voitenko, Yuriy   +2 more
core   +1 more source

Non-linear Cosmic Ray propagation close to the acceleration site [PDF]

, 2015
Recent advances on gamma-ray observations from SuperNova Remnants and Molecular Clouds offer the possibility to study in detail the properties of the propagation of escaping Cosmic Rays (CR).
Gabici, Stefano, Marcowith, Alexandre, Morlino, Giovanni, Nava, Lara, Ptuskin, Vladimir   +4 more
core   +4 more sources

On the possibility for laboratory simulation of generation of Alfvén disturbances in magnetic tubes in the solar atmosphere

Solar-Terrestrial Physics, 2016
The paper deals with generation of Alfvén plasma disturbances in magnetic flux tubes through exploding laser plasma in magnetized background plasma. Processes with similar effect of excitation of torsion-type waves seem to provide energy transfer from ...
Prokopov P.A., Zakharov Yu.P., Tishchenko V.N., Boyarintsev E.L., Melekhov A.V., Ponomarenko A.G., Posukh V.G., Shaikhislamov I.F.   +7 more
doaj   +1 more source

Magnetic Reconnection as a Potential Trigger for Magnetotail Flapping at Mars: Insights From MAVEN and Tianwen‐1 Observations

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Magnetotail current sheet (CS) flapping is a universal plasma phenomenon observed at multiple planets, yet its triggering mechanisms remain poorly understood outside of Earth. At Mars, single‐spacecraft observations have also reported tail flapping, but the processes responsible for its onset have never been identified.
Yuanzheng Wen, Jasper S. Halekas, Han‐Wen Shen, Chi Zhang, Robert J. Lillis, Jiawei Gao, Norberto Romanelli, Long Cheng, Chuanfei Dong, Yingjuan Ma, Yaxue Dong, Shaosui Xu, David A. Brain, Junfeng Qin, Jared R. Espley, David L. Mitchell, Christian Mazelle, James P. McFadden, Shannon M. Curry   +18 more
wiley   +1 more source

Velocity Field of Compressible MHD Turbulence: Wavelet Decomposition and Mode Scalings

, 2010
We study compressible MHD turbulence, which holds key to many astrophysical processes, including star formation and cosmic ray propagation. To account for the variations of the magnetic field in the strongly turbulent fluid we use wavelet decomposition ...
A. Lazarian, Antoine, Beresnyak, Beresnyak, Beresnyak, Beresnyak, Burkhart, Burkhart, Chepurnov, Chepurnov, Cho, Cho, Cho, Falgarone, Falgarone, Federrath, Federrath, Grzegorz Kowal, Hily-Blant, Kowal, Kowal, Kowal, Kritsuk, Kritsuk, Lazarian, Lazarian, Lazarian, Lazarian, Lazarian, Lazarian, Lazarian, Lithwick, Maron, Narayan, Padoan, Padoan, Yan, Yan, Yan, Yan   +39 more
core   +1 more source

Experimental Study of Alfvén Wave Reflection from an Alfvén-speed Gradient Relevant to the Solar Coronal Holes

The Astrophysical Journal
We report the first experimental detection of a reflected Alfvén wave from an Alfvén-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 Angeles.
Sayak Bose, Jason M. TenBarge, Troy Carter, Michael Hahn, Hantao Ji, James Juno, Daniel Wolf Savin, Shreekrishna Tripathi, Stephen Vincena   +8 more
doaj   +1 more source

The Potential Role of Modified Electron Acoustic Wave and Nonlinear Mode Coupling in Mono‐Energetic Aurora

Geophysical Research Letters, 2023
Results from a 1D kinetic simulation, for the first time, reveal the important role of modified electron acoustic wave (MEAW) in auroral electron acceleration.
Run Shi, Jun Liang, Zejun Hu, Desheng Han, Xuejing Li   +4 more
doaj   +1 more source

Superposed Epoch Analysis of Extreme Geomagnetic Disturbances at Auroral Zone Latitudes Over a Solar Cycle

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Intense and rapidly changing electrical currents in near‐Earth space produce geomagnetic disturbances (GMDs) with large magnetic field rates of change (dB/dt) and in turn large geomagnetically induced currents (GICs) in nearby power lines and pipelines. This study builds on the work of Engebretson, Yang, et al.
Mark J. Engebretson, Giulia F. Mazza, Erik S. Steinmetz, Vyacheslav A. Pilipenko, Mark B. Moldwin, Martin G. Connors, Shin‐ichi Ohtani, Jesper W. Gjerloev   +7 more
wiley   +1 more source

Driven Phase-mixed Alfvén Waves in a Partially Ionized Solar Plasma

The Astrophysical Journal
Phase mixing has long been understood to be a viable mechanism for expediting the dissipation of Alfvén wave energy resulting in the subsequent heating of the solar atmosphere.
M. McMurdo, I. Ballai, G. Verth, V. Fedun   +3 more
doaj   +1 more source