Results 21 to 30 of about 2,661,724 (245)

Effect of EMIC waves on relativistic and ultrarelativistic electron populations: Ground-based and Van Allen Probes observations [PDF]

Geophysical Research Letters, 2014
We study the effect of electromagnetic ion cyclotron (EMIC) waves on the loss and pitch angle scattering of relativistic and ultrarelativistic electrons during the recovery phase of a moderate geomagnetic storm on 11 October 2012.
A. Drozdov, A. Kale, Baker, Baker, C. Kletzing, Cornwall, D. K. Milling, D. L. Turner, D. N. Baker, Evans, G. D. Reeves, H. E. Spence, I. R. Mann, J. Wygant, K. Orlova, Kennel, Kessell, Kletzing, Li, M. E. Usanova, M. T. Robertson, Mann, Mann, Meredith, Rodger, S. A. Thaller, Shprits, Shprits, Spence, Summers, Summers, Tsyganenko, Ukhorskiy, Usanova, Usanova, Wygant, Y. Shprits   +36 more
core   +5 more sources

Observation of Non‐Resonance Interactions Between Cold Protons and EMIC Waves of Different Polarizations in the Inner Magnetosphere

Geophysical Research Letters, 2023
Using the high‐quality measurements of plasma by the Magnetospheric Multiscale (MMS) spacecraft, we investigate the wave‐particle interaction between cold protons and Electromagnetic ion cyclotron (EMIC) waves of different polarizations in the inner ...
Xinmin Li, Rongsheng Wang, Xinliang Gao, Quanming Lu, Huayue Chen, Jiuqi Ma   +5 more
doaj   +2 more sources

A statistical study of EMIC waves observed by Cluster: 1. Wave properties [PDF]

Journal of Geophysical Research: Space Physics, 2015
AbstractElectromagnetic ion cyclotron (EMIC) waves are an important mechanism for particle energization and losses inside the magnetosphere. In order to better understand the effects of these waves on particle dynamics, detailed information about the occurrence rate, wave power, ellipticity, normal angle, energy propagation angle distributions, and ...
R. C. Allen, J.‐C. Zhang, L. M. Kistler, H. E. Spence, R.‐L. Lin, B. Klecker, M. W. Dunlop, M. André, V. K. Jordanova   +8 more
openaire   +4 more sources

Mirror Mode Mediated EMIC Wave Generation in the Magnetosheath

Geophysical Research Letters
Electromagnetic ion cyclotron (EMIC) waves and mirror modes (MMs), both driven by ion temperature anisotropy, are commonly observed in planetary magnetosheaths.
Yifan Wu, Chen Shi, Xiaoman Liu, Lei Dai, Jinsong Zhao, Xin Tao   +5 more
doaj   +2 more sources

Determining EMIC Wave Vector Properties Through Multi-Point Measurements: The Wave Curl Analysis. [PDF]

J Geophys Res Space Phys, 2021
AbstractElectromagnetic ion cyclotron (EMIC) waves play important roles in particle loss processes in the magnetosphere. Determining the evolution of EMIC waves as they propagate and how this evolution affects wave‐particle interactions requires accurate knowledge of the wave vector, k.
Vines SK, Anderson BJ, Allen RC, Denton RE, Engebretson MJ, Johnson JR, Toledo-Redondo S, Lee JH, Turner DL, Ergun RE, Strangeway RJ, Russell CT, Wei H, Torbert RB, Fuselier SA, Giles BL, Burch JL.   +16 more
europepmc   +6 more sources

Electron losses from the radiation belts caused by EMIC waves [PDF]

Journal of Geophysical Research: Space Physics, 2014
Electromagnetic Ion Cyclotron (EMIC) waves cause electron loss in the radiation belts by resonating with high energy electrons at energies greater than about 500 keV. However, their effectiveness has not been fully quantified.
Fraser, Brian J,, Glauert, Sarah A., Grew, Russell S., Horne, Richard B., Kersten, Tobias, Meredith, Nigel P.   +5 more
core   +3 more sources

Modeling the EMIC Wave‐Induced Acceleration of Energetic Protons in the Io Footprint Tail

Geophysical Research Letters
The Io footprint tail (FPT) region is crucial for studying the interactions between Io and Jupiter's magnetosphere. In this region, Juno spacecraft observed significant acceleration of energetic protons, concurrently with electromagnetic ion cyclotron ...
Peng Lu, Xing Cao, Xudong Gu, Binbin Ni, Wei Xu, Shaobei Wang, Minyi Long   +6 more
doaj   +2 more sources

Duct Effect of Magnetic Dips on the Propagation of EMIC Waves in Jupiter's Magnetosphere With Observations of Juno

Geophysical Research Letters
In recent years, it has been found that magnetic dip caused by diamagnetic motion of injected plasma can provide an appropriate environment for excitation of electromagnetic ion cyclotron (EMIC) waves.
Zhigang Yuan, Yufeng Zhao, Xiongdong Yu, Zuxiang Xue, Dan Deng   +4 more
doaj   +2 more sources

Discovery of proton hill in the phase space during interactions between ions and electromagnetic ion cyclotron waves [PDF]

Scientific Reports, 2021
A study using Arase data gives the first observational evidence that the frequency drift of electromagnetic ion cyclotron (EMIC) waves is caused by cyclotron trapping.
Masafumi Shoji, Yoshizumi Miyoshi, Lynn M. Kistler, Kazushi Asamura, Ayako Matsuoka, Yasumasa Kasaba, Shoya Matsuda, Yoshiya Kasahara, Iku Shinohara   +8 more
doaj   +2 more sources

Global distribution of EMIC waves derived from THEMIS observations [PDF]

Journal of Geophysical Research: Space Physics, 2012
Electromagnetic ion cyclotron (EMIC) waves play an important role in magnetospheric dynamics and their global distribution has been of great interest. This paper presents the distribution of EMIC waves over a broader range than ever before, as enabled by observations with the Time History of Events and Macroscale Interactions during Substorms (THEMIS ...
Kyungguk Min, Jeongwoo Lee, Kunihiro Keika, Wen Li   +3 more
openaire   +3 more sources