Results 71 to 80 of about 987 (189)

MMS Observations of the Energetic Particles Within Kelvin‐Helmholtz Waves at the Boundary of the 10 May 2024 Coronal Mass Ejection (CME)

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract On 10 May 2024, Earth was hit by a CME that drove the largest geomagnetic storm in 20 years. Multi‐spacecraft observations previously showed that the ∼100 nT north‐south IMF bz ${b}_{z}$ variation was driven by Kelvin‐Helmholtz waves with wavelength ∼250 RE ${R}_{E}$ and reconnection jets in the ±z $\pm z$‐direction (Nykyri, 2024a, https://doi.
Katariina Nykyri, Neetasha Arya, Scott Boardsen, Guan Le, Harri Laakso, Lynn Wilson, Xuanye Ma, Katherine Holland, Brandon Burkholder, Leon Ofman, Kyoung‐Joo Hwang, Dinesh Radhakrishnan, Shiva Kavosi, Daniel Gershman, Christine Gabrielse, Barbara Giles, Stephen Fuselier, Jim Burch   +17 more
wiley   +1 more source

Prolonged Intervals of Relativistic Electron Storm‐Time Flux Enhancements in the Magnetotail at Lunar Distance

Geophysical Research Letters
We report on prolonged enhancements of electron fluxes at energies at or above 500 keV, observed in the magnetotail by the lunar‐orbiting Acceleration, Reconnection, Turbulence, and Electrodynamics of Moon's Interaction with the Sun (ARTEMIS) during the ...
A. Runov, V. Angelopoulos, A. V. Artemyev, X. Shi, C. Gabrielse   +4 more
doaj   +1 more source

On Spontaneous Reconnection in the Earth's Magnetotail

Journal of geomagnetism and geoelectricity, 1991
The release of energy stored in the Earth's magnetotail is a major feature of the coupling between solar wind and magnetosphere. Spontaneous reconnection due to tearing mode instability in the magnetotail provides an appropriate mechanism, explaining energy release, delays the response to changes in the interplanetary medium, non stationary features of
openaire   +3 more sources

Spectral Properties and Energy Injection in Mercury's Magnetotail Current Sheet

Geophysical Research Letters
Mercury's magnetotail hosts a thin and highly dynamic current sheet (CS), where magnetic reconnection and strong fluctuations frequently occur. Here, we statistically analyze magnetic field power spectra across 370 magnetotail CSs observed by MESSENGER ...
Xinmin Li, Chuanfei Dong, Liang Wang, Sae Aizawa, Lina Z. Hadid, Chi Zhang, Hongyang Zhou, James A. Slavin, Jiawei Gao, Mirko Stumpo, Wei Zhang   +10 more
doaj   +1 more source

Importance of the dusk-dawn interplanetary magnetic field component (IMF By) to magnetospheric convection in Earth’s magnetotail plasma sheet

Frontiers in Astronomy and Space Sciences
The solar wind and its embedded magnetic field, the interplanetary magnetic field (IMF) together with magnetic reconnection power the large-scale plasma and magnetic flux circulation in the Earth’s magnetosphere-ionosphere system.
Timo Pitkänen, Timo Pitkänen, Anita Kullen, Ghai Siung Chong   +3 more
doaj   +1 more source

First observation of multiple very-near-Earth reconnection events during a single storm main phase

Frontiers in Astronomy and Space Sciences
For the first time, this article presents three very-near-Earth reconnection (VNERX) events observed within the same 12-hour-long storm main phase. The THEMIS inner probes observed the hallmarks of three episodes of tailward retreating x-lines positioned
Fekireselassie Beyene, Vassilis Angelopoulos, Christine Gabrielse, Yoshizumi Miyoshi, Iku Shinohara, Shoichiro Yokota, Satoshi Kasahara, Kunihiro Keika, Tomoaki Hori, Yasumasa Kasaba, Yoshiya Kasahara, Ayako Matsuoka, Mariko Teramoto, Kazuhiro Yamamoto   +13 more
doaj   +1 more source

Particle Acceleration by Magnetic Reconnection in Geospace. [PDF]

Space Sci Rev, 2023
Oka M, Birn J, Egedal J, Guo F, Ergun RE, Turner DL, Khotyaintsev Y, Hwang KJ, Cohen IJ, Drake JF.   +9 more
europepmc   +1 more source

Fast Tearing Mode Driven by Demagnetized Electrons

Geophysical Research Letters
Recent MMS observations have discovered electron‐scale super‐thin current sheets (STCSs) with a partial electron demagnetization, which distinguishes them from the ion‐scale TCSs traditionally observed by the Cluster mission. Our investigation focuses on
Olga O. Tsareva, Makar V. Leonenko, Elena E. Grigorenko, Helmi V. Malova, Victor Yu. Popov, Lev M. Zelenyi   +5 more
doaj   +1 more source

Energy transfer across magnetopause under dawn-dusk IMFs. [PDF]

Sci Rep, 2023
Zhang HX, Lu JY, Wang M.
europepmc   +1 more source

Neutral Line in the Magnetotail

, 1974
In the open model of the magnetosphere, it is thought that magnetic field lines are transported from the dayside of the magnetosphere to the magnetotail as a consequence of the reconnection process operating on the dayside magnetopause (Dungey, 1963).
openaire   +1 more source