Results 51 to 60 of about 9,065 (177)

Evidence for a Localized Burst of Relativistic Electrons Produced in Earth's Plasma Sheet During a Substorm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Earth's magnetotail and its plasma sheet are highly dynamic, influenced by both the solar wind and the inner magnetosphere. Periodically, energy is explosively released in the magnetotail during substorms. However, the extent to which electrons are accelerated in the magnetotail remains an open question, with recent observations revealing ...
M. Shumko, D. L. Turner, A. Y. Ukhorskiy, I. J. Cohen, G. K. Stephens, A. Artemyev, X. Zhang, C. Wilkins, E. Tsai, C. Gabrielse, S. Raptis, M. Sitnov, V. Angelopoulos   +12 more
wiley   +1 more source

Absolute and convective instabilities of parallel propagating circularly polarized Alfvén waves: numerical results [PDF]

, 2006
Context.The stability of parallel propagating circularly polarized Alfvén waves (pump waves) has been studied for more than four decades with the use of normal mode analysis.
Belcher, Brevdo, Brodin, Cramer, D. Simpson, Del Zanna, Del Zanna, Derby, Galeev, Ghosh, Ghosh, Ghosh, Goldstein, Hertzberg, Hertzberg, Hollweg, Huerre, Inhester, Jayanti, Jayanti, Kulikovskii, Ling, Longtin, Low, M. S. Ruderman, Matsukiyo, Mills, R. Erdélyi, Ruderman, Ruderman, Ruderman, Ruderman, Sakai, Shevchenko, Simpson, Spangler, Spangler, Terra-Homem, Terra-Homem, Viñas, Wong, Wright, Wright   +42 more
core   +1 more source

One-dimensional Linear Analysis and Numerical Simulations of Alfvén Waves in a Force-free Magnetosphere around a Kerr Black Hole

The Astrophysical Journal
We perform 1D linear analysis and numerical simulations of the propagation of Alfvén waves in a force-free magnetosphere along magnetic field lines around a spinning black hole.
Shinji Koide, Sousuke Noda, Masaaki Takahashi   +2 more
doaj   +1 more source

Parker Solar Probe Observations of Proton Core‐Beam Distributions in Heliospheric Current Sheet Region: Quasilinear Instability Analysis Combined With Collisional Relaxation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Parker Solar Probe has been proven as instrumental for the observation of young solar wind. During the encounters E‐07 and E‐08, PSP recorded the core plus beaming protons crossing the heliospheric current Sheet region. When the observed PSP data is plotted in the temperature ratio versus parallel beta space, it is found that the occurrence ...
M. Rashid, P. H. Yoon, J. Huang, C. Salem, M. Sarfraz, S. Alnussirat, R. A. López, J. Seough, H. Xie, D. Larson, R. Livi   +10 more
wiley   +1 more source

Heating of the Solar Chromosphere and Corona by Alfven Wave Turbulence

, 2011
A three-dimensional MHD model for the propagation and dissipation of Alfven waves in a coronal loop is developed. The model includes the lower atmospheres at the two ends of the loop.
A. A. van Ballegooijen, Alfvén, Antolin, Aschwanden, Aschwanden, Aschwanden, Avrett, Berger, Berger, Berger, Berger, Bhattacharjee, Bhattacharjee, Brosius, Buchlin, Carlsson, Cattaneo, Chae, Chandran, Chandran, Chandrasekhar, Cho, Cranmer, Cranmer, Cranmer, De Pontieu, De Pontieu, Dmitruk, Dmitruk, Dmitruk, Dmitruk, E. E. DeLuca, Erdélyi, Fontenla, Fontenla, Fontenla, Furusawa, Galloway, Goldreich, Gudiksen, Hasan, Heyvaerts, Heyvaerts, Judge, Kadomtsev, Klimchuk, Klimchuk, Li, López Fuentes, M. Asgari-Targhi, Mandrini, Martens, Martens, Martinez-Sykora, Matsumoto, Matthaeus, McIntosh, Montgomery, Ofman, Parker, Press, Priest, Rappazzo, Rappazzo, Roberts, Rouppe van der Voort, Rutten, S. R. Cranmer, Sakai, Schekochihin, Schrijver, Schrijver, Spruit, Stein, Ugarte-Urra, Ulmschneider, van Ballegooijen, van Ballegooijen, Verdini, Verdini, Warren, Wilmot-Smith, Winebarger   +82 more
core   +1 more source

A model for straight and helical solar jets: II. Parametric study of the plasma beta [PDF]

, 2015
Jets are dynamic, impulsive, well-collimated plasma events that develop at many different scales and in different layers of the solar atmosphere.
Antiochos, S. K., Dalmasse, K., DeVore, C. R., Karpen, J. T., Pariat, E.   +4 more
core   +4 more sources

The Energy Content of Alfvén Waves in the Stratified Solar Atmosphere

The Astrophysical Journal
Alfvén waves propagating in a vertically stratified plasma, such as those traveling from the solar photosphere to the corona, are partially reflected due to the gradient in the Alfvén speed.
Roberto Soler
doaj   +1 more source

Spatial structure of azimuthally small-scale MHD waves in one-dimensionally inhomogeneous finite pressure plasma with curved field lines

Solar-Terrestrial Physics, 2020
We have studied propagation of hydromagnetic (MHD) waves in one-dimensionally inhomogeneous finite pressure plasma with curved field lines. Magnetic surfaces are considered to be concentric cylinders, where the cylinder’s radius models the radial ...
Petrashchuk A.V., Klimushkin D.Yu.
doaj   +1 more source

Field-aligned structure of poloidal Alfvén waves in a finite pressure plasma [PDF]

Annales Geophysicae, 2009
This paper is devoted to analytical and numerical studies of the parallel structure of poloidal Alfvén waves in a finite pressure plasma. The effects of finite-beta plasma are especially essential near the magnetospheric equator, where an opaque (non ...
P. N. Mager, D. Yu. Klimushkin, V. A. Pilipenko, S. Schäfer   +3 more
doaj   +1 more source

The Contribution of Time Domain Structures to Electron Loss During the 17 March 2013 Geomagnetic Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Ring current modeling has been a subject of active research in the last two decades. However, accurately modeling of this population of particles remains a challenge. Several recent studies have demonstrated that ring current models can overestimate the trapped electron flux in the 10–50 keV range by up to two orders of magnitude during ...
Katja Stoll, Yangyang Shen, Bernhard Haas, Leonie Pick, Dedong Wang, Yuri Shprits   +5 more
wiley   +1 more source