Results 81 to 90 of about 2,743,097 (252)

ULF waves in the Mercury magnetosphere

Geophysical Research Letters, 1989
ULF waves are present in the magnetic records returned by the Mariner 10 spacecraft. An analysis of samples of these data show that near the magnetopause the waves are right‐hand circularly polarized and about 3 nT in amplitude. These waves weaken and become linearly polarized as the spacecraft moves inward.
openaire   +1 more source

The Cluster Virtual Observatory for ULF Waves

Journal of Geophysical Research: Space Physics, 2023
Abstract Since its launch in 2000, the Cluster fleet visited a vast domain of the circum‐terrestrial environment, from the upstream solar wind and the distant tail, down to the plasmasphere, scanning in detail all magnetospheric regions during over two solar cycles.
O. D. Constantinescu, K. H. Fornaçon, U. Motschmann, K. H. Glassmeier, I. Richter, F. Plaschke   +5 more
openaire   +1 more source

Simultaneous Observations of Geoelectric and Geomagnetic Fields Produced by Magnetospheric ULF Waves

Geophysical Research Letters, 2020
Geomagnetic perturbations (BGEO) related to magnetospheric ultralow frequency (ULF) waves induce electric fields within the conductive Earth—geoelectric fields (EGEO)—that in turn drive geomagnetically induced currents.
M. Hartinger, X. Shi, G. Lucas, B. Murphy, A. Kelbert, J. Baker, E. Rigler, P. Bedrosian   +7 more
semanticscholar   +1 more source

Evolution and characteristics of global pc5 ULF waves during a high solar wind speed interval [PDF]

, 2005
We present an interval of extremely long-lasting narrow-band Pc5 pulsations during the recovery phase of a large geomagnetic storm. These pulsations occurred continuously for many hours and were observed throughout the magnetosphere and in the dusk ...
Mann, I. R., Rème, H., Donovan, E. F., Fenrich, F. R., Balogh, A., Singer, H. J., Rae, I. J., Lester, M., Watt, C. E. J., Lavraud, B., Milling, D. K., Wild, James A.   +11 more
core  

Interaction of ULF waves with different ion species: Pitch angle and phase space density implications

, 2016
ULF waves can accelerate/decelerate the charged particles including the ring current ions via drift-bounce resonance, which play an important role in the dynamics of ring current during storm times.
Ren, Jie, Rankin, Robert, Zhou, Xuzhi, Wang, Y. F., Zong, Qui-Gang   +4 more
core   +1 more source

Magnetospheric responses to solar wind Pc5 density fluctuations: Results from 2D hybrid Vlasov simulation

Frontiers in Astronomy and Space Sciences, 2022
Ultra-low frequency (ULF) waves are routinely observed in Earth’s dayside magnetosphere. Here we investigate the influence of externally-driven density variations in the near-Earth space in the ULF regime using global 2D simulations performed with the ...
Hongyang Zhou, Lucile Turc, Yann Pfau-Kempf, Markus Battarbee, Vertti Tarvus, Maxime Dubart, Harriet George, Giulia Cozzani, Maxime Grandin, Urs Ganse, Markku Alho, Andreas Johlander, Jonas Suni, Maarja Bussov, Konstantinos Papadakis, Konstantinos Horaites, Ivan Zaitsev, Fasil Tesema, Evgeny Gordeev, Minna Palmroth , Minna Palmroth    +20 more
doaj   +1 more source

On the dependence of storm time ULF wave power on magnetopause location: Impacts for ULF wave radial diffusion [PDF]

Geophysical Research Letters, 2015
AbstractUltralow frequency (ULF) waves play a crucial role in energetic particle dynamics in the inner magnetosphere. We examine the role of the magnetopause location in controlling the amplitude and penetration of ULF waves within the inner magnetosphere during 63 coronal mass ejection (CME)‐driven and corotating interaction region (CIR)‐driven ...
Kyle R. Murphy, Ian R. Mann, David G. Sibeck   +2 more
openaire   +1 more source

First Observation of Sawtooth‐Like Undulations in Afternoon Detached Auroral Arcs Modulated by Surface Waves at the Plasmaspheric Plume Boundary

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract The afternoon detached auroral arc is an important phenomenon in the subauroral region, reflecting coupling processes between the Earth's magnetosphere and ionosphere. Previous studies have not identified fine‐scale structures in such arcs, leaving the dynamics underlying their formation poorly understood.
Huiting Feng, Dedong Wang, Yixin Hao, Yoshizumi Miyoshi, Haobo Fu, Chae‐Woo Jun, Yuzhang Ma, Yongliang Zhang, Kazushi Asamura, Yoshiya Kasahara, Shoya Matsuda, Atsuki Shinbori, Fuminori Tsuchiya, Atsushi Kumamoto, Ayako Matsuoka, Mariko Teramoto, Kazuhiro Yamamoto, Iku Shinohara, Kazuo Shiokawa, Yuri. Y. Shprits   +19 more
wiley   +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

Cold Plasmaspheric Electrons Affected by ULF Waves in the Inner Magnetosphere: A Van Allen Probes Statistical Study

Journal of Geophysical Research: Space Physics, 2019
Six years of Van Allen Probes data are used to investigate cold plasmaspheric electrons affected by ultralow‐frequency (ULF) waves in the inner magnetosphere ...
Jie Ren, Q. Zong, Xuzhi Zhou, H. Spence, H. Funsten, J. Wygant, R. Rankin   +6 more
semanticscholar   +1 more source