Results 61 to 70 of about 2,611,112 (157)

The Evolution of Parallel Electric Field Across the Earth's Magnetosheath

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract In Earth's collisionless magnetosheath, turbulence evolution and energy transformation across the system, especially at kinetic scales, remain poorly quantified without full‐coverage of high‐resolution observations. Using multi‐traversal observations from the 2023 and 2024 Magnetospheric Multiscale (MMS) Unbiased Magnetosheath Campaign, we ...
Y. Qi, R. E. Ergun, T. Vo, A. Chasapis, S. J. Schwartz, V. Wilder   +5 more
wiley   +1 more source

Direct Imaging of a Prolonged Plasma/Current Sheet and Quasiperiodic Magnetic Reconnection on the Sun

The Astrophysical Journal
Magnetic reconnection is widely believed to be the fundamental process in the solar atmosphere that underlies magnetic energy release and particle acceleration.
Pankaj Kumar, Judith T. Karpen, Vasyl Yurchyshyn, C. Richard DeVore, Spiro K. Antiochos   +4 more
doaj   +1 more source

First-principles theory of the rate of magnetic reconnection in magnetospheric and solar plasmas

Communications Physics, 2022
Different models exist to characterize magnetic reconnection, a process that converts magnetic energy into plasma thermal and kinetic energy, but a quantitative theoretical predictive model of how rapidly it proceeds has been lacking.
Yi-Hsin Liu, Paul Cassak, Xiaocan Li, Michael Hesse, Shan-Chang Lin, Kevin Genestreti   +5 more
doaj   +1 more source

Unusual Enhancement in He(23S) Airglow Brightness Associated With Interplanetary Magnetic Field Northward Turnings During the 2025 New Year's Day Storm

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The upper thermosphere is important in the context of space weather, but continuous monitoring of the thermosphere at high latitudes remains limited despite its strong variations associated with geomagnetic activity. Orthohelium, He(23S), is found from the upper thermosphere to lower exosphere, and is a promising tracer of atmospheric dynamics.
Takanori Nishiyama, Masato Kagitani, Noora Partamies, Daniel Whiter, Takuo T. Tsuda, Yasunobu Ogawa, Fred Sigernes   +6 more
wiley   +1 more source

Comparison of Magnetospheric Multiscale ion jet signatures with predicted reconnection site locations at the magnetopause

Geophysical Research Letters, 2016
Magnetic reconnection at the Earth's magnetopause is the primary process by which solar wind plasma and energy gains access to the magnetosphere. One indication that magnetic reconnection is occurring is the observation of accelerated plasma as a jet ...
S. M. Petrinec, J. L. Burch, S. A. Fuselier, R. G. Gomez, W. Lewis, K. J. Trattner, R. Ergun, B. Mauk, C. J. Pollock, C. Schiff, R. J. Strangeway, C. T. Russell, T.‐D. Phan, D. Young   +13 more
doaj   +1 more source

Reconnection in substorms and solar flares: analogies and differences [PDF]

Annales Geophysicae, 2009
Magnetic reconnection is the crucial process in the release of magnetic energy associated with magnetospheric substorms and with solar flares. On the basis of three-dimensional resistive MHD simulations we investigate similarities and differences ...
J. Birn, M. Hesse
doaj   +1 more source

Enhancement of Magnetic Flux Transferred to the Magnetotail Due to a Storm‐Time Kelvin‐Helmholtz Instability

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Along the flank magnetopause, magnetosheath flow interfaced with the relatively stationary magnetosphere produces strong flow shears, and the Kelvin‐Helmholtz instability (KHI) occurs. When the interplanetary magnetic field (IMF) is southward, anti‐parallel day‐side reconnection and KHI can interact, which may enhance the reconnection rate as ...
Brandon L. Burkholder, Katariina Nykyri, Xuanye Ma, Lauri Holappa, Harsha Gurram, Rachel C. Rice, David Sibeck, Dinesh K. V. Radhakrishnan   +7 more
wiley   +1 more source

The Evolution of Photospheric Magnetic Fields at the Footpoints of Reconnected Structures in the Solar Atmosphere

The Astrophysical Journal
Magnetic reconnection is believed to play an important role in the release and conversion of energy among magnetized plasma systems. So far, we have been unable to understand under what conditions magnetic reconnection can take place.
Tao Ding, Jun Zhang, Yue Fang, Junchao Hong, Yi Bi, Yongyuan Xiang   +5 more
doaj   +1 more source

Magnetopause reconnection and interlinked flux tubes [PDF]

Annales Geophysicae, 2013
Magnetic reconnection can be a continuous or a transient process. Global magnetohydrodynamics (MHD) simulations are important tools to understand the relevant magnetic reconnection mechanisms and the resulting magnetic structures.
F. R. Cardoso, F. R. Cardoso, W. D. Gonzalez, D. G. Sibeck, M. Kuznetsova, D. Koga   +5 more
doaj   +1 more source

A Machine Learning‐Based Model of Three‐Dimensional Ion Fluxes in the High‐Altitude Earth's Northern Cusp

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Magnetic reconnection at the dayside magnetopause is the primary pathway for transferring mass, momentum, and energy from the solar wind into the terrestrial magnetosphere. Previous studies have shown that the spatiotemporal dynamics of dayside magnetic reconnection can be inferred remotely from properties of Earth's cusps, specifically their ...
Gonzalo Cucho‐Padin, David Sibeck, Xueyi Wang, Daniel da Silva, Xiaolei Li, Gowtan Valluri, Cristian Ferradas, Hyunju Connor, Yu Lin   +8 more
wiley   +1 more source