Results 1 to 10 of about 994 (229)

Whistler-mode chorus waves at Mars [PDF]

Nature Communications, 2023
Chorus waves are naturally occurring electromagnetic emissions in space and are known to produce highly energetic electrons in the hazardous radiation belt.
Shangchun Teng, Yifan Wu, Yuki Harada, Jacob Bortnik, Fulvio Zonca, Liu Chen, Xin Tao   +6 more
doaj   +6 more sources

Electron Microbursts Induced by Nonducted Chorus Waves [PDF]

Frontiers in Astronomy and Space Sciences, 2021
Microbursts, short-lived but intense electron precipitation observed by low-Earth-orbiting satellites, may contribute significantly to the losses of energetic electrons in the outer radiation belt. Their origin is likely due to whistler mode chorus waves,
Lunjin Chen, Xiao-Jia Zhang, Anton Artemyev, Anton Artemyev, Liheng Zheng, Zhiyang Xia, Aaron W. Breneman, Richard B. Horne   +7 more
doaj   +4 more sources

Short Chorus Wave Packets: Generation Within Chorus Elements, Statistics, and Consequences on Energetic Electron Precipitation. [PDF]

J Geophys Res Space Phys, 2022
AbstractShort and intense lower‐band chorus wave packets are ubiquitous in the Earth's outer radiation belt. In this article, we perform various Vlasov hybrid simulations, with one or two triggering waves, to study the generation of short chorus packets/subpackets inside long rising tone elements.
Mourenas D, Zhang XJ, Nunn D, Artemyev AV, Angelopoulos V, Tsai E, Wilkins C.   +6 more
europepmc   +5 more sources

Detection of ultrafast electron energization by whistler-mode chorus waves in the magnetosphere of Earth [PDF]

Scientific Reports
Electromagnetic whistler-mode chorus waves are a key driver of variations in energetic electron fluxes in the Earth’s magnetosphere through the wave-particle interaction.
S. Kurita, Y. Miyoshi, S. Saito, S. Kasahara, Y. Katoh, S. Matsuda, S. Yokota, Y. Kasahara, A. Matsuoka, T. Hori, K. Keika, M. Teramoto, I. Shinohara   +12 more
doaj   +2 more sources

Competing mechanisms of radial and local diffusion in radiation belt electron dynamics during quiet-geomagnetic conditions [PDF]

Scientific Reports
While previous investigations utilizing high-resolution satellite observations (e.g., Van Allen Probes) have elucidated the competition between radial diffusion and local wave-driven acceleration mechanisms during geomagnetic storms, the relative ...
Qiongyue Zhang, Song Fu, Xin Ma, Weixin Chen, Jianhang Wang, Qi Zhu, Dongfang Zhai, Yibo Zhao, Xiangyuan Tong, Yuan Lei, Kunkun Xia, Yuequn Lou, Taifeng Jin, Binbin Ni   +13 more
doaj   +2 more sources

Ducted propagation of chorus waves: Cluster observations [PDF]

Annales Geophysicae, 2011
Ducted propagation of whistler waves in the terrestrial magnetosphere-ionosphere system was discussed and studied long before the first in-situ spacecraft measurements.
K. H. Yearby, M. A. Balikhin, Yu. V. Khotyaintsev, S. N. Walker, V. V. Krasnoselskikh, H. St. C. K. Alleyne, O. Agapitov   +6 more
doaj   +5 more sources

Subpacket structure in strong VLF chorus rising tones: characteristics and consequences for relativistic electron acceleration [PDF]

Earth, Planets and Space, 2021
Van Allen Probes in situ observations are used to examine detailed subpacket structure observed in strong VLF (very low frequency) rising-tone chorus elements observed at the time of a rapid MeV electron energization in the inner magnetosphere.
John C. Foster, Philip J. Erickson, Yoshiharu Omura   +2 more
doaj   +2 more sources

Chorus wave power at the strong diffusion limit overcomes electron losses due to strong diffusion [PDF]

Nature Communications
Earth’s radiation belts consist of high-energy charged particles trapped by Earth’s magnetic field. Strong pitch angle diffusion of electrons caused by wave-particle interaction in Earth’s radiation belts has primarily been considered as a loss process ...
T. A. Daggitt, R. B. Horne, S. A. Glauert, G. Del Zanna, J. M. Albert   +4 more
doaj   +2 more sources

Upstream motion of chorus wave generation: comparisons with observations

Frontiers in Astronomy and Space Sciences
An understanding of the development of strong very low frequency chorus elements is important in the study of the rapid MeV electron acceleration observed during radiation belt recovery events.
John C. Foster, Philip J. Erickson, Yoshiharu Omura   +2 more
doaj   +2 more sources

A Theoretical Framework of Chorus Wave Excitation [PDF]

Journal of Geophysical Research: Space Physics, 2022
AbstractWe propose a self‐consistent theoretical framework of chorus wave excitation, which describes the evolution of the whistler fluctuation spectrum as well as the suprathermal electron distribution function. The renormalized hot electron response is cast in the form of a Dyson‐like equation, which then leads to evolution equations for nonlinear ...
Zonca, F., Tao, X., Chen, L.
openaire   +3 more sources