Results 101 to 110 of about 288 (182)

First Report of Rising‐Tone EMIC Waves Driven by the Magnetosheath High‐Speed Jet

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Magnetosheath high‐speed jets (HSJs) are pervasive transient structures with enhanced dynamic pressure in the terrestrial magnetosheath and can exert notable local impacts on the magnetopause. Although various geoeffects have been reported to be associated with HSJs, whether HSJs can drive the generation of electromagnetic ion cyclotron (EMIC)
Wentian Lei, Xinliang Gao, Xuan Zhou, Jiuqi Ma, Tong Shao, Yuxiang Wang, Quanming Lu   +6 more
wiley   +1 more source

Magnetosheath jets at Mars. [PDF]

Sci Adv, 2023
Gunell H, Hamrin M, Nesbit-Östman S, Krämer E, Nilsson H.   +4 more
europepmc   +1 more source

TRACERS Small‐Scale Field‐Aligned Currents and Intense GPS Amplitude and Phase Scintillations in the Nightside Auroral Region

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We present conjugate observations of ionospheric small‐scale magnetic perturbations (dB) $(dB)$ and GPS scintillations from the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) and the Canadian High Arctic Ionospheric Network (CHAIN) during a storm‐time substorm on 9 August 2025 in the nightside auroral region ...
Yangyang Shen, Robert J. Strangeway, Hao Cao, James M. Weygand, Jiashu Wu, Anthony McCaffrey, P. T. Jayachandran, Daniel Billett, Magnus F. Ivarsen, Christopher Watson, Sheng Tian, Marit Oieroset, David Miles   +12 more
wiley   +1 more source

Investigation on Upstream Ion Events from the L1 Point Observation: New Insights

The Astrophysical Journal
There has been long-standing controversy regarding the origin and transport of short-lived energetic ion events observed upstream of the Earth’s bow shock. In this work, by adopting a unique method, we study the characteristics of 152 upstream ion events
Bijoy Dalal, Dibyendu Chakrabarty, Christina M. S. Cohen, Nandita Srivastava, Mihir I. Desai   +4 more
doaj   +1 more source

Pre‐Existing Plasmaspheric Density Structure

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We perform a basic model experiment: we run two nearly identical plasmapause simulations, differing only by their initial conditions. The first run contains initial fine‐scale and mesoscale structure, and the second run is initialized with a featureless, circular plasmapause.
J. Goldstein, M. F. Thomsen
wiley   +1 more source

Correlated Response of the Martian Dayside Magnetic Pileup Boundary and Bow Shock to Solar Wind and Planetary Drivers

The Astrophysical Journal
The interaction between the supermagnetosonic solar wind and the atmosphere of the weakly magnetized planet Mars forms an induced magnetosphere preceded by a magnetic pileup boundary (MPB) and bow shock (BS).
Sofía Burne, Gabriela Boscoboinik, César Bertucci, Laura F. Morales, Christian Mazelle, Cyril Simon Wedlund, Jacob Fruchtman, Jasper Halekas, Jared Espley, David Mitchell, Daniel Gómez   +10 more
doaj   +1 more source

Statistical Evaluation of a Foreshock Transient Model Using Ground‐Based ULF Wave Observations

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Hot flow anomalies and foreshock bubbles are discontinuity–driven foreshock transients that generate significant geospace disturbances. A recently developed analytical model can predict their upstream perturbations. In this study, we further evaluate this model by comparing its predictions with geomagnetic disturbances measured by ground‐based
Terry Zixu Liu, Vassilis Angelopoulos, Hui Zhang, Ying‐Dong Jia, Siqi Zhao   +4 more
wiley   +1 more source

Electron Acceleration in Magnetic Islands in Quasi-parallel Shocks

The Astrophysical Journal
We report new theories and simulations for electron acceleration in magnetic islands generated by magnetic reconnection in the shock turbulence in a quasi-parallel shock, using a 2 and 1/2 dimensional particle-in-cell simulation. When an island is moving,
N. Bessho, L.-J. Chen, M. Hesse, J. Ng, L. B. Wilson III, J. E. Stawarz, H. Madanian   +6 more
doaj   +1 more source

Shocks in the Very Local Interstellar Medium. [PDF]

Space Sci Rev, 2022
Mostafavi P, Burlaga LF, Cairns IH, Fuselier SA, Fraternale F, Gurnett DA, Kim TK, Kurth WS, Pogorelov NV, Provornikova E, Richardson JD, Turner DL, Zank GP.   +12 more
europepmc   +1 more source

Effects of Nonresonant Instability and Magnetic Reconnection on Ion Heating and Acceleration in Quasi-parallel Shock Waves

The Astrophysical Journal
To understand the ion injection for diffusive shock acceleration in space and astrophysical shock waves, such as in planetary bow shocks and supernova remnant shocks, ion heating and acceleration in high-Alfvén-Mach-number ( M _A ) quasi-parallel shock ...
N. Bessho, J. Ng, L.-J. Chen, M. Hesse, L. B. Wilson III, J. E. Stawarz   +5 more
doaj   +1 more source