Results 51 to 60 of about 838 (214)

Properties of Earthward and Tailward High‐Speed Plasma Flows in Earth's Distant Magnetotail: Solar Cycle and Geomagnetic Activity Dependence

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract High‐speed plasma flows in Earth's magnetotail are important for the global dynamics of the magnetosphere. We survey 11 yrs of high‐speed plasma flows observed by the ARTEMIS spacecraft in Earth's distant magnetotail between XGSE = −52 RE and XGSE = −66 RE to investigate their properties for a wide range of solar and geomagnetic activity ...
Anissa Pokorny‐Yadav, Marit Øieroset, Tai D. Phan, Andrei Runov, Vassilis Angelopoulos   +4 more
wiley   +1 more source

Turbulent Heating of Solar Wind Plasma Downstream of Magnetohydrodynamic Shocks

The Astrophysical Journal
Interplanetary (IP) shocks are believed to play a significant role in both amplifying the background level of turbulent fluctuations and in heating the bulk solar wind (SW). This study investigates the thermodynamic properties downstream of IP shocks. We
Alexander Pitňa, Jana Šafránková, Zdeněk Němeček, Gilbert Pi, Gary Zank, Lingling Zhao, Laxman Adhikari, Masaru Nakanotani   +7 more
doaj   +1 more source

Analytical Model of a Toroidal Mode Field Line Resonance and Its Drift‐Resonant Interaction With Energetic Electrons

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract Ultra‐low‐frequency (ULF) waves play a critical role in magnetospheric dynamics, yet their transient growth and resonant electron interactions remain poorly understood. We develop a first‐principle model of toroidal mode field line resonances that captures wave growth, saturation, and phase mixing.
J. Liu, R. Rankin, A. W. Degeling, F. Fenrich   +3 more
wiley   +1 more source

Observation of Kinetic Alfvén Waves inside an Interplanetary Coronal Mass Ejection Magnetic Cloud at 1 au

The Astrophysical Journal
Recent advancements have significantly enhanced our grasp of interplanetary coronal mass ejections (ICMEs) in the heliosphere. These observations have uncovered complex kinematics and structural deformations in ICMEs, hinting at the possible generation ...
Kishor Kumbhar, Anil Raghav, Omkar Dhamane, Kalpesh Ghag, Vinit Pawaskar, Zubair Shaikh, Ankush Bhaskar, Raffaella D’Amicis, Daniele Telloni   +8 more
doaj   +1 more source

Relative ordering in the radial evolution of solar wind turbulence: the S-Theorem approach [PDF]

Annales Geophysicae, 2011
Over the past few decades scientists have shown growing interest in space plasma complexity and in understanding the turbulence in magnetospheric and interplanetary media. At the beginning of the 1980s, Yu. L.
G. Consolini, P. De Michelis
doaj   +1 more source

The Correlation Function for Magnetic Field Fluctuations at Ion Dissipation Scales in the Solar Wind

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract This study investigates energy dissipation in small‐scale solar wind turbulence using a novel approach to autocorrelation function analysis leveraging high‐resolution data from the Magnetospheric Multiscale Mission (MMS). We analyze magnetic field fluctuations at ion dissipation scales, focusing on short 20‐s intervals to isolate dissipation ...
Alvin J. G. Angeles, Harlan E. Spence, Charles W. Smith, Bernard J. Vasquez, Ian J. Cohen, Kevin J. Genestreti, Ruth Skoug, Savvas Raptis, Christine Gabrielse, Daniel J. Gershman, David Fischer, Christopher T. Russell, James L. Burch, Roy B. Torbert, Werner Magnes   +14 more
wiley   +1 more source

Modification of the Power Spectral Density of Magnetic Field Fluctuations by Quasi-perpendicular Interplanetary Shocks

The Astrophysical Journal Letters
We investigate the role of interplanetary (IP) shocks in solar wind turbulence using observations of Solar Orbiter, Parker Solar Probe, and Wind. Employing statistical analysis of quasi-perpendicular fast forward (FF) and fast reverse (FR) shocks, we ...
Byeongseon Park, Alexander Pitňa, Jana Šafránková, Zdeněk Němeček   +3 more
doaj   +1 more source

The Phase Relation Among Microinjection, Thermal Plasma, and Electric Field: A Case Study

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract Microinjections are periodic enhancements of 10 s–100 s keV electron fluxes at a cadence of several minutes on the dawnside or duskside magnetosphere. Here, we extend previous studies by comprehensively examining the plasma and wave observations provided by the Magnetospheric Multiscale (MMS) mission.
S. Tian, J. Li, J. Bortnik, C.‐P. Wang, S. Wang, J. L. Burch, O. Le Contel   +6 more
wiley   +1 more source

Approximation of Daily AMS‐02 Spectra With Machine Learning Methods

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Almost three thousand daily AMS‐02 proton spectra from 2011 to 2019 offer the most precise and extensive data set of cosmic ray spectra covering a wide energy range. As such, they offer a unique opportunity to test machine learning algorithms for approximating cosmic ray proton spectra based on the inputs usually available to solar modulation ...
Martin Nguyen, Pavol Bobík, Ján Genči
wiley   +1 more source

Relevance of Murchison Widefield Array Interplanetary Scintillation Observations to Heliospheric Transient Catalogs

Space Weather, Volume 23, Issue 12, December 2025.
Abstract We have conducted a comprehensive comparison of interplanetary scintillation (IPS) observations taken by the Murchison Widefield Array (MWA) with several heliospheric transient event catalogs, over a time period of 7 months during solar minimum.
A. Waszewski, J. S. Morgan, M. C. M. Cheung, R. Ekers, E. Samara, S. Majumdar, R. Chhetri, N. D. R. Bhat, M. Johnston‐Hollitt   +8 more
wiley   +1 more source