Results 51 to 60 of about 300 (160)

Earth's Alfvén Wings Driven by the April 2023 Coronal Mass Ejection

Geophysical Research Letters
We report a rare regime of Earth's magnetosphere interaction with sub‐Alfvénic solar wind in which the windsock‐like magnetosphere transforms into one with Alfvén wings.
Li‐Jen Chen, Daniel Gershman, Brandon Burkholder, Yuxi Chen, Menelaos Sarantos, Lan Jian, James Drake, Chuanfei Dong, Harsha Gurram, Jason Shuster, Daniel B. Graham, Olivier Le Contel, Steven J. Schwartz, Stephen Fuselier, Hadi Madanian, Craig Pollock, Haoming Liang, Matthew Argall, Richard E. Denton, Rachel Rice, Jason Beedle, Kevin Genestreti, Akhtar Ardakani, Adam Stanier, Ari Le, Jonathan Ng, Naoki Bessho, Megha Pandya, Victoria Wilder, Christine Gabrielse, Ian Cohen, Hanying Wei, Christopher T. Russell, Robert Ergun, Roy Torbert, James Burch   +35 more
doaj   +1 more source

Contemporaneous Appearances of Auroral Spiral and Transpolar Arc: Polar UVI Observations and Global MHD Simulations

Earth and Space Science, Volume 13, Issue 6, June 2026.
Abstract A local vortex‐structured aurora and a large‐scale transpolar arc (TPA) were contemporaneously observed by the Polar ultraviolet imager (UVI) during the late recovery phase of a substorm, and the interplanetary magnetic field (IMF) BY and BZ were negative and negative‐to‐positive. The TPA grew along the dawnside auroral oval from the nightside
Motoharu Nowada, Yukinaga Miyashita, Aoi Nakamizo, Noora Partamies, Quan‐Qi Shi   +4 more
wiley   +1 more source

Iterative and Steady Black Auroral Stripes and Their Possible Causality in Plasma‐Sheet Electron Distributions: Implications From Low‐Altitude Reimei Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Iterative black auroral stripes were identified in auroral images obtained by the low‐altitude microsatellite Reimei. These steady and narrow black stripes are a remarkable feature of diffuse auroras generated by energetic electrons precipitating at higher latitudes than pulsating auroras.
Masafumi Hirahara, Yusuke Ebihara, Mizuki Fukizawa, Takanori Nishiyama, Takeshi Sakanoi   +4 more
wiley   +1 more source

Influence of Solar Sails on Magnetic Field Measurements in Space Plasmas

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Solar sail technology is ready to be deployed in a satellite mission carrying a science‐grade magnetometer. In preparation for such a mission, it is essential to characterize the interactions between the sail and the ambient plasma that could affect the magnetometer readings.
Konstantinos Horaites, Juan V. Rodriguez, Ying Liu   +2 more
wiley   +1 more source

Inter‐Orbit Variability of Jupiter's Current Sheet Morphology

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract The structure of Jupiter's magnetosphere reflects the combined effects of a strong intrinsic field and an extended hinged current sheet whose morphology varies with solar wind forcing. We present a study of Jupiter's magnetodisc that combines the UCL‐AGA magnetodisc code with Khurana's generalized, hinged current sheet models (1992/2022) to ...
A. Santos, N. Achilleos, D. Millas, P. Guio, W. Dunn, G. Provan, J. D. Nichols, C. S. Arridge   +7 more
wiley   +1 more source

Sources and Acceleration of Energetic Particles in Planetary Magnetospheres [PDF]

International Astronomical Union Colloquium, 1994
AbstractEnergetic particles in the magnetospheres of the solar system originate from various different sources, such as the solar wind, the planetary ionospheres as well as the moons and rings of the planetary systems. Important acceleration sites are the auroral regions, the magnetotail, and the equatorial regions of the magnetospheres where electric ...
openaire   +1 more source

Ionosphere‐Thermosphere Responses to the March 2023 Geomagnetic Storm Using Observations and TIEGCM Simulations Driven by Data Assimilated Aurora and Electric Fields

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract We investigate Ionosphere‐Thermosphere (IT) responses to the March 2023 geomagnetic storm using GOLD and PFISR observations, along with TIEGCM simulations driven by data‐assimilated aurora and electric fields. A Lattice Kriging approach is implemented to assimilate auroral electron flux and characteristic energy from ground‐based (THEMIS/ASIs)
Prakash Poudel, Xian Lu
wiley   +1 more source

Direct Observations of Magnetic Reconnections at the Magnetopause of the Martian Mini‐Magnetosphere

Geophysical Research Letters
While Mars lacks a global intrinsic magnetic field, it does exhibit crustal magnetic anomalies (mostly in its Southern Hemisphere). These crustal magnetic anomalies directly interact with solar wind, which forms a mini‐magnetosphere and a region denoted ...
R. T. Lin, S. Y. Huang, Z. G. Yuan, K. Jiang, H. H. Wu, Q. Y. Xiong   +5 more
doaj   +1 more source

MHD effects of the solar wind flow around planets [PDF]

Nonlinear Processes in Geophysics, 2000
The study of the interaction of the solar wind with magnetized and unmagnetized planets forms a central topic of space research. Focussing on planetary magnetosheaths, we review some major developments in this field.
H. K. Biernat, H. K. Biernat, N. V. Erkaev, C. J. Farrugia, D. F. Vogl, D. F. Vogl, W. Schaffenberger   +6 more
doaj  

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source