Results 91 to 100 of about 48,383 (235)

Bidirectional outflows as evidence of magnetic reconnection leading to a solar microflare

, 2016
Magnetic reconnection is a rapid energy release process that is believed to be responsible for flares on the Sun and stars. Nevertheless, such flare-related reconnection is mostly detected to occur in the corona, while there have been few studies ...
Cao, Wenda, Chen, Feng, Cheng, Xin, Ding, M. D., Fang, Cheng, Hong, Jie, Li, Ying, Yang, Kai   +7 more
core   +1 more source

Longitudinal Variability of Pre‐Midnight Equatorial Plasma Bubbles Under Disturbed Geomagnetic Conditions

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Equatorial plasma bubbles (EPBs) pose significant challenges to trans‐ionospheric radio communication and navigation systems. Because of their disruptive effects, evaluating and predicting them is key for the development of space systems. The influence of geomagnetic activity on EPBs remains unclear, partly due to limited low‐latitude neutral ...
Gilda de Lourdes González, Thomas J. Immel, Yen‐Jung Wu, L. Claire Gasque, Brian J. Harding, Colin Triplett, Cesar E. Valladares   +6 more
wiley   +1 more source

The Origin of Non‐Gyrotropic Distribution Functions in Compressed Current Sheets

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Non‐gyrotropic distribution functions are often observed in thin current sheets prior to magnetic reconnection. This study uses NASA's Magnetospheric Multiscale mission data to confirm a novel source of agyrotropy in compressed current sheets and highlights its significance in reconnection.
Ami M. DuBois, Chris Crabtree, Emily Lichko, Gurudas Ganguli   +3 more
wiley   +1 more source

Role of Large‐Scale Traveling Ionospheric Disturbances in the Positive Storm Phase Observed by the Millstone Hill Radar and GNSS TEC Measurements

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract A moderate geomagnetic storm was driven by high‐speed solar wind stream on 14 March 2016. We show that large‐scale traveling ionospheric disturbances (LSTIDs) played a significant role in producing the ionospheric storm positive phase at mid‐latitudes in the North American sector.
G. P. Geethakumari, A. T. Aikio, L. Cai, H. Vanhamäki, I. I. Virtanen, A. Coster, A. Maute, A. Marchaudon, P.‐L. Blelly   +8 more
wiley   +1 more source

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

Self-Feeding Turbulent Magnetic Reconnection on Macroscopic Scales

, 2008
Within a MHD approach we find magnetic reconnection to progress in two entirely different ways. The first is well-known: the laminar Sweet-Parker process. But a second, completely different and chaotic reconnection process is possible.
D. Biskamp, E. Priest, Giovanni Lapenta
core   +1 more source

Derivation of Ambient Electron Density Using Spacecraft Potential Measurements From the MMS and Van Allen Satellites: Application to the Plasmasphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract We investigate the empirical relationship between the spacecraft potential (Vs) measured by the Electric Field Double Probes, and the electron density (Ne) measured by the Fast Plasma Instrument on the MMS spacecraft. We derive their relationship during fast‐mode intervals when the Active Spacecraft Potential Control Devices are off.
H. Laakso, G. Le, R. Pfaff, S. Boardsen, K. Nykyri   +4 more
wiley   +1 more source

Example of exponentially enhanced magnetic reconnection driven by a spatially bounded and laminar ideal flow [PDF]

, 2021
Allen H. Boozer, Todd Elder
openalex   +1 more source

Impact of Induced Electric Fields Inside the Magnetopause on Magnetopause Shadowing of Radiation Belt Electrons

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Loss of relativistic electrons with energies above 0.5 MeV through the magnetopause, commonly referred to as magnetopause shadowing, has been extensively investigated using both simulations and observations. However, direct and systematic observational evidence remains limited. In this study, we extend a previously developed magnetopause model
Kyung‐Chan Kim, Dae‐Young Lee
wiley   +1 more source

Three-Dimensional Structure Of Magnetic Reconnection In A Laboratory Plasma [PDF]

, 2003
The local three-dimensional structure of magnetic reconnection has been measured for the first time in a magnetohydrodynamic (MHD) laboratory plasma at the Swarthmore Spheromak Experiment. An array of 600 magnetic probes which resolve ion inertial length
Brown, Michael R., Cothran, C. D., Landreman, Matthew Joseph, , \u2703, Matthaeus, W. H.   +3 more
core   +1 more source