Results 61 to 70 of about 218,704 (210)

Extreme Radiation Belt Dropout During the May 2024 Superstorm

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract The geomagnetic superstorm in May 2024 represents the most extreme space weather event over the past two decades, offering a unique opportunity to investigate radiation belt electron dynamics under exceptionally strong solar wind driving conditions. Observations from the Arase satellite show that relativistic electron fluxes dropped by several
Xingzhi Lyu, Dedong Wang, Bernhard Haas, Miroslav Hanzelka, Yixin Sun, Zikang Xie, Alwin Roy, Yoshizumi Miyoshi, Yihua Zheng, Christos Katsavrias, Sigiava Aminalragia‐Giamini, Nana Higashio, Takefumi Mitani, Takeshi Takashima, Iku Shinohara, Yoshiya Kasahara, Shoya Matsuda, Atsuki Shinbori, Fuminori Tsuchiya, Atsushi Kumamoto, Ayako Matsuoka, Mariko Teramoto, Kazuhiro Yamamoto, Yuri Y. Shprits   +23 more
wiley   +1 more source

Saturation of Ionospheric Currents under Extreme Environments

The Astrophysical Journal
Strong solar wind conditions can drive large electric potentials across planetary polar caps, but previous studies have shown that the cross polar cap potential reaches a saturation point during periods of high interplanetary magnetic field (IMF ...
Fatemeh Bagheri, Alex Glocer
doaj   +1 more source

Sensitivity of the Martian Magnetotail to Model Configuration Choices in Multispecies MHD Simulations

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Numerical modeling has been a key component in the study of the Mars space environment, providing a comprehensive global representation that is not always easy to obtain in spacecraft measurements. However, there are inconsistencies in data‐model and model‐model comparisons, regardless of whether the simulation conditions are identical or ...
Nii‐Boi A. Quartey, Michael W. Liemohn, Wenyi Sun, Yingjuan Ma   +3 more
wiley   +1 more source

Interplanetary magnetic field rotations followed from L1 to the ground : the response of the Earth's magnetosphere as seen by multi-spacecraft and ground-based observations [PDF]

, 2011
A study of the interaction of solar wind magnetic field rotations with the Earth's magnetosphere is performed. For this event there is, for the first time, a full coverage over the dayside magnetosphere with multiple (multi)spacecraft missions from dawn ...
Volwerk, M., Hasegawa, H., Escoubet, P., Berchem, J., Panov, E. V., Shi, J.-K., Wang, J., Constantinescu, O. D., Frey, H., Eastwood, J.P., Fazakerley, A. N., Bogdanova, Y. V., Shen, C., Taylor, M. G. G. T., Dunlop, M. W., Lavraud, B., Wild, James, Weygand, J. M., Amm, O., Zhang, Q.-H.   +19 more
core   +2 more sources

Quasi 6‐Day Wave Variability in the Thermosphere and Ionosphere: Observations and Modeling

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Satellite observations of the upper mesosphere and lower thermosphere from TIMED‐SABER and ICON‐MIGHTI reveal a clear Quasi 6‐Day Wave (Q6DW) event in the winds and temperatures in this region. This Q6DW event persists across multiple data sets throughout the middle‐to‐upper thermosphere and the F‐region ionosphere, including GOLD disk ...
Oluwafisayo P. Owolabi, Scott L. England, Yen‐Jung Wu   +2 more
wiley   +1 more source

Variability in Saturn's bow shock and magnetopause from pioneer and voyager: Probabilistic predictions and initial observations by Cassini [PDF]

, 2005
Probability distributions for the location of the Saturnian bow shock and magnetopause have been derived by extrapolating observations of dynamic solar wind pressures to the position of Saturn's orbit. These observations are those made by the Pioneer 11,
Hendricks, S, Russell, CT, Achilleos, N, Neubauer, FM, Dougherty, MK   +4 more
core  

Analytical Modeling of Hot Ion Interchange Injections in Saturn's Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Cassini's CHarge Energy Mass Spectrometer (CHEMS) instrument collected energetic plasma data from 2004 to 2017, including hundreds of observations of small‐scale nearly dispersionless “local” injection events into the inner magnetosphere. This study assesses whether these interchange‐like injections are a channel‐like structure still connected
Michael W. Liemohn, Jenna Syposs, Abigail R. Azari, Erika Y. Hathaway, Alexandra K. Roosnovo   +4 more
wiley   +1 more source

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

Statistical Scale Analyses of a Diurnal Periodicity in Auroral Kilometric Radiation, Observed by Wind/WAVES

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The Earth's strongest natural radio emission is Auroral Kilometric Radiation (AKR), which is correlated with auroral intensity, and is a barometer for space weather. AKR is generated by the electron cyclotron maser instability, with sources on auroral field lines. Previous work on AKR and radio emissions from other planets (or stars) points to
Alexandra Ruth Fogg, S. Wu, C. M. Jackman, S. J. Walker, M. J. Rutala, C. K. Louis, S. M. Ivanov, L. Lamy, J. E. Waters, D. K. Whiter   +9 more
wiley   +1 more source

A Magnetospheric Source for Near‐Planet Whistler‐Mode Waves at Venus

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The presence or absence of lightning in the atmosphere of Venus has important implications for atmospheric chemistry, potential chemical signatures of life, identifying volcanic activity, and quantifying potential hazards to future exploration missions.
David M. Malaspina, Keirra D. Kernan, Katherine A. Goodrich, Yingjuan Ma, Shannon M. Curry   +4 more
wiley   +1 more source