Zobrazeno 1 - 10
of 7 215
pro vyhledávání: '"Radiation belt"'
Autor:
Suvorova A. V., Dmitriev A. V.
Publikováno v:
Solar-Terrestrial Physics, Vol 10, Iss 3, Pp 75-82 (2024)
We present the results of a statistical study of transient enhancements of electrons with energies >30 keV at low drift shells in the quasi-trapped region (forbidden zone) at the geomagnetic equator. Using data from low-altitude NOAA/POES and MetOp s
Externí odkaz:
https://doaj.org/article/ccd6b3e0eeef43139f47641647fa7d4e
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Wave-particle interaction plays a crucial role in the dynamics of the Earth’s radiation belts. Cyclotron resonance between coherent whistler mode electromagnetic waves and energetic electrons of the radiation belts is often called a coherent instab
Externí odkaz:
https://doaj.org/article/4a5342214c26467daf19d81551c5d91c
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 19, Pp n/a-n/a (2024)
Abstract Chorus waves induce both electron acceleration and loss. In this letter, we provide significantly improved models of electron lifetime due to interactions with chorus waves. The new models fill the gap that previous models have on some magne
Externí odkaz:
https://doaj.org/article/1ac5c7d71ea0409ca7169f53826e46e4
Publikováno v:
Earth and Planetary Physics, Vol 8, Iss 2, Pp 368-374 (2024)
The energy spectrum of energetic electrons is a key factor representing the dynamic variations of Earth’s Van Allen radiation belts. Increased measurements have indicated that the commonly used Maxwellian and Kappa distributions are inadequate for
Externí odkaz:
https://doaj.org/article/ca7731081ef94711bfd6fd9c47e2927d
Autor:
Man Hua, Jacob Bortnik
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 13, Pp n/a-n/a (2024)
Abstract We perform a comprehensive investigation of the statistical distribution of outer belt electron acceleration events over energies from 300 keV to ∼10 MeV regardless of storm activity using 6‐years of observations from Van Allen Probes. W
Externí odkaz:
https://doaj.org/article/b674f6ce945e4a20a907a25bf06f6b36
Autor:
Xinlin Li
Publikováno v:
AGU Advances, Vol 5, Iss 3, Pp n/a-n/a (2024)
Abstract The discovery of the Van Allen radiation belts marked a prominent milestone in space physics. Recent advances, through the measurements of two CubeSat missions, have shed new light on the dynamics of energetic particles in the near‐Earth e
Externí odkaz:
https://doaj.org/article/d9c9ce7ea9b248c6a3fc959df352b3dd
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Impulsive radial transport events occurring in the radiation belts leave lasting marks in the form of drift echoes, that is, energy-dependent drift phase structures in the radiation belts that evolve at the drift frequency. Drift echoes are known to
Externí odkaz:
https://doaj.org/article/cf5ca97066b647e08779e920f2e9a73b
Autor:
Vladimir Borisovich Belakhovsky, Vyacheslav A. Pilipenko, Elizaveta E. Antonova, Yoshizumi Miyoshi, Yoshiya Kasahara, Satoshi Kasahara, Nana Higashio, Iku Shinohara, Tomoaki Hori, Shoya Matsuda, Shoichiro Yokota, Takeshi Takashima, Mitani Takefumi, Kunihiro Keika, Satoko Nakamura
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-17 (2023)
Abstract Variations of relativistic electron fluxes (E ≥ 1 MeV) and wave activity in the Earth magnetosphere are studied to determine the contribution of different acceleration mechanisms of the outer radiation belt electrons: ULF mechanism, VLF me
Externí odkaz:
https://doaj.org/article/b618eec4ec1240928bbbbc2e77f43598
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 10, Pp n/a-n/a (2024)
Abstract Understanding and forecasting outer radiation belt electron flux dropouts is one of the top concerns in space physics. By constructing Support Vector Machine (SVM) models to predict storm‐time dropouts for both relativistic and ultra‐rel
Externí odkaz:
https://doaj.org/article/d0a47a6a9f734136961b8983bc03004f
Autor:
Murong Qin, Wen Li, Xiao‐Chen Shen, Vassilis Angelopoulos, Richard Selesnick, Luisa Capannolo, Qianli Ma, Anton Artemyev, Xiao‐Jia Zhang
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 10, Pp n/a-n/a (2024)
Abstract We statistically evaluate the global distribution and energy spectrum of electron precipitation at low‐Earth‐orbit, using unprecedented pitch‐angle and energy resolved data from the Electron Losses and Fields INvestigation CubeSats. Ou
Externí odkaz:
https://doaj.org/article/85f695ad188d48cea394f679dfcfaeed