Results 131 to 140 of about 78,626 (296)

Outer Radiation Belt Dynamics During the October 2012 Storm Revisited: Rapid Inward Radial Transport From a Dynamic Outer Boundary

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Earth's outer radiation belt electron flux is highly variable and can be enhanced by over an order of magnitude over timescales less than one day, as observed during the October 2012 storm. Previous studies of this storm (e.g., Reeves et al., 2013, https://doi.org/10.1126/science.1237743) have invoked local acceleration to explain this ...
L. G. Ozeke, I. R. Mann, L. Olifer, S. K. Morley, H. E. Spence   +4 more
wiley   +1 more source

Frozen-field Modeling of Coronal Condensations with MPI-AMRVAC. II. Optimization and Application in 3D Models

The Astrophysical Journal
The frozen-field hydrodynamic (ffHD) model is a simplification of the full magnetohydrodynamical equations under the assumption of a rigid magnetic field, which significantly reduces computational complexity and enhances efficiency.
Yuhao Zhou, Xiaohong Li, Jack M. Jenkins, Jie Hong, Rony Keppens   +4 more
doaj   +1 more source

Plasma astrophysics at Santa Barbara [PDF]

, 1982
R. Rosner, Ellen G. Zweibel, Virginia Trimble   +2 more
openalex   +1 more source

Statistical Auroral Absorption Model Parameterized by AE Index

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Energetic electron precipitation, often in association with enhanced geomagnetic activity, leads to increased D‐region ionization in the auroral region causing auroral absorption. A statistical auroral absorption model is presented for high‐latitudes (poleward of 50° magnetic latitude) based on data collected from 2010 to 2019 from 13 wide ...
R. A. D. Fiori, T. G. Cameron, J. Issa, A. Hupé, L. Huang   +4 more
wiley   +1 more source

Conditions for Relativistic Magnetic Reconnection under the Presence of Shear Flow and Guide Field

The Astrophysical Journal
The scaling of the relativistic reconnection outflow speed is studied in the presence of both shear flows parallel to the reconnecting magnetic fields and guide fields pointing out of the reconnection plane.
Sarah Peery, Yi-Hsin Liu, Xiaocan Li
doaj   +1 more source

Astrophysical Plasmas and Fluids [PDF]

, 1999
This book is a valuable introduction to astrophyscial plasmas and fluids for graduate students of astronomy preparing either for a research career in the field or just aspiring to achieve a decent degree of familiarity with 99% of the cosmos. The contents provide a true representation of the phenomenal diversity of dominant roles that plasmas and ...
openaire   +1 more source

Development and Investigation of a Modification to Extend the Dynamic Range of Electrostatic Analyzers

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Plasma populations within the solar system are distributed over a substantial range of densities, kinetic temperatures, and bulk velocities, from the solar wind to Earth's ionosphere. Measuring the full range of plasma conditions for some of these populations is difficult for current top‐hat electrostatic analyzers, let alone for multiple ...
L. A. Davis, C. G. Mouikis, L. M. Kistler, V. N. Coffey, H. Kucharek, A. B. Galvin   +5 more
wiley   +1 more source

Relativistic Alfvén Turbulence at Kinetic Scales

The Astrophysical Journal
In a strongly magnetized, magnetically dominated relativistic plasma, Alfvénic turbulence can extend to scales much smaller than the particle inertial scales.
Cristian Vega, Stanislav Boldyrev, Vadim Roytershteyn   +2 more
doaj   +1 more source

Astrophysical Plasmas [PDF]

Science, 1991
openaire   +2 more sources

Global MHD Simulations: Magnetosphere–Ionosphere Coupling Dependence on Conductance Model

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Eighty‐five geomagnetic storms were simulated with the space weather modeling framework Geospace model using two different ionospheric conductance models. One set used the legacy conductances within the Ridley ionosphere model, while the other set used the newly developed conductance model for extreme events conductance model.
T. I. Pulkkinen, P. Dredger, M. Liemohn, A. Ridley, G. Tóth, D. Welling, Q. Al Shidi, A. Brenner, S. Hill, A. Mukhopadhyay   +9 more
wiley   +1 more source