Results 101 to 110 of about 932,549 (275)

How Does the Magnetosphere‐Ionosphere Current System Respond to Solar Flares?

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract While the isolated effects of solar flares on low‐latitude ionospheric electrodynamics have been well documented, the coupled system response of the equatorial electrojet (EEJ), auroral electrojet (AEJ), field‐aligned currents (FACs), and asymmetric ring current (ASY‐H) remains poorly understood.
Hongkai Tang, Jing Liu, Xuanqing Liu, Xiangyu Niu, Jiawei Zhang, Shuhan Li   +5 more
wiley   +1 more source

Axial Flux Evolution of Small-scale Magnetic Flux Ropes from 0.06 to 10 au

The Astrophysical Journal Letters
Small-scale magnetic flux ropes (SMFRs) fill much of the solar wind, but their origin and evolution are debated. We apply our recently developed, improved Grad–Shafranov algorithm for the detection and reconstruction of SMFRs to data from Parker Solar ...
Hameedullah Farooki, Jeongwoo Lee, Francesco Pecora, Haimin Wang, Hyomin Kim   +4 more
doaj   +1 more source

Investigating a Solar Wind Stream Interaction Region using Interplanetary Spacecraft Radio Signals: A Magnetohydrodynamic Simulation Study

The Astrophysical Journal, 2023
Stream interaction regions (SIRs) are spiral heliospheric structures that arise at the interface between fast and preceding slow solar wind regions. SIR enhancements of density and magnetic field intensity, often with magnetic polarity inversion, are ...
David B. Wexler, Ward B. Manchester, Lan K. Jian, Lynn B. Wilson III, Natchimuthuk Gopalswamy, Paul Song, Jason E. Kooi, Bart van der Holst, Elizabeth A. Jensen   +8 more
doaj   +1 more source

Heliospheric Evolution of Magnetic Clouds

, 2019
Interplanetary evolution of eleven magnetic clouds (MCs) recorded by at least two radially aligned spacecraft is studied. The in situ magnetic field measurements are fitted to a cylindrically symmetric Gold-Hoyle force-free uniform-twist flux-rope ...
Amerstorfer, Tanja, Amerstorfer, Ute V., Dumbović, Mateja, Farrugia, Charles J., Galvin, Antoinette B., Leitner, Martin, Möstl, Christian, Temmer, Manuela, Veronig, Astrid M., Vršnak, Bojan   +9 more
core   +1 more source

Solar‐Wind Triggering of Substorm Onset During the May 2024 Superstorm: Coordinated Global Observations and Simulations

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Substorms are often described by a loading‐unloading cycle, where onset follows gradual accumulation of solar wind magnetic flux in the magnetosphere. Yet observations indicate that intense substorms can also be directly driven, though the underlying mechanism remains unresolved.
Yong Ren, Minghui Zhu, Lei Dai, Walter Gonzalez, Shan Wang, Chi Wang, C. Philippe Escoubet, Jiaojiao Zhang, Qiugang Zong   +8 more
wiley   +1 more source

Research in space science and technology [PDF]

Progress in various space flight research programs is reported. Emphasis is placed on X-ray astronomy and interplanetary plasma physics. Topics covered include: infrared astronomy, long base line interferometry, geological spectroscopy, space life ...
Beckley, L. E.
core   +1 more source

Interstellar Dust in the Solar System: Model versus In-Situ Spacecraft Data

, 2019
In the early 1990s, contemporary interstellar dust penetrating deep into the heliosphere was identified with the in-situ dust detector on board the Ulysses spacecraft.
Altobelli, Nicolas, Grün, Eberhard, Krüger, Harald, Srama, Ralf, Sterken, Veerle, Strub, Peter   +5 more
core   +1 more source

High‐Resolution Measurements of the Cross‐Shock Potential, Ion Reflection, and Electron Heating at an Interplanetary Shock by MMS

Journal of Geophysical Research: Space Physics, 2019
The Magnetospheric Multiscale (MMS) spacecraft obtained unprecedented high‐time resolution multipoint particle and field measurements of an interplanetary shock event on 8 January 2018.
I. Cohen, S. Schwartz, K. Goodrich, N. Ahmadi, R. Ergun, S. Fuselier, M. Desai, E. Christian, D. McComas, G. Zank, J. Shuster, S. Vines, B. Mauk, R. Decker, B. Anderson, J. Westlake, O. Contel, H. Breuillard, B. Giles, R. Torbert, J. Burch   +20 more
semanticscholar   +1 more source

Martian Atmospheric Loss Through Foreshock Transient Events

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract At Mars, the MAVEN spacecraft has made observations of Hot Flow Anomalies (HFAs) in the foreshock. Due to the bow shock's proximity to the planet, it is theorized that HFAs contribute to atmospheric escape at Mars through the excavation of ionospheric ions.
Alexandros C. Cooke‐Politikos, Sergey Shuvalov, Yaxue Dong, Yi Qi, David A. Brain, Jasper S. Halekas   +5 more
wiley   +1 more source

Ion‐Scale Wave Emission and Absorption for Non‐Maxwellian Velocity Distributions in the Inner Heliosphere

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Hot and tenuous plasmas have velocity distribution functions (VDFs) significantly different from Maxwellian distributions. Characterizing how these differences impact wave damping and emission necessitates sophisticated methods for determining the associated dielectric plasma response.
K. G. Klein, D. Larson, R. Livi, M. M. Martinović, A. Rahmati, N. Shankarappa, M. Stevens, D. Verscharen, P. Whittlesey   +8 more
wiley   +1 more source