Results 61 to 70 of about 401,503 (306)

Properties of relativistic electron precipitation: a comparative analysis of wave-induced and field line curvature scattering processes

Frontiers in Astronomy and Space Sciences
We analyze the properties of relativistic (>700 keV) electron precipitation (REP) events measured by the low-Earth-orbit (LEO) POES/MetOp constellation of spacecraft from 2012 through 2023.
Luisa Capannolo, Andrew Staff, Wen Li, Katharine Duderstadt, Nithin Sivadas, Nithin Sivadas, Joshua Pettit, Joshua Pettit, Sadie Elliot, Murong Qin, Xiao-Chen Shen, Qianli Ma, Qianli Ma   +12 more
doaj   +1 more source

A 2D Kaleidoscope of Electron Heat Fluxes Driven by Auroral Electron Precipitation

Geophysical Research Letters, 2022
Electron heat flux is an important value for ionospheric space weather modeling networks. Utilizing the 2D array of Time History of Events and Macroscale Interactions during Substorms all‐sky‐imager (ASI) observations, Gabrielse et al. (2021, https://doi.
George V. Khazanov, Christine Gabrielse, Alex Glocer, Mike Chu, Yukitoshi Nishimura, Pablo Reyes   +5 more
doaj   +1 more source

Anomalous electron heating effects on the E region ionosphere in TIEGCM [PDF]

, 2016
We have recently implemented a new module that includes both the anomalous electron heating and the electron‐neutral cooling rate correction associated with the Farley‐Buneman Instability (FBI) in the thermosphere‐ionosphere electrodynamics global ...
Dimant, Yakov, Liu, Jing, Merkin, Slava, Oppenheim, Meers, Wang, Wenbin, Wiltberger, Michael   +5 more
core   +1 more source

Electron Precipitation Curtains - Simulating the Microburst Origin Hypothesis

Journal of Geophysical Research: Space Physics, 2022
AbstractWe explore the hypothesis that electron precipitation curtains such as those observed by the AeroCube‐6 satellite pair can be produced by electron microbursts. Precipitation curtains are latitudinal structures of stable precipitation that persist for timescales of 10s of seconds or longer. The electrons involved have energies of 10–100s of keV.
T. P. O’Brien, C. L. Lemon, J. B. Blake   +2 more
openaire   +1 more source

Super‐Refractory Status Epilepticus (SRSE) in a Patient With Compound Heterozygous OPA1 Variants: Case Report and Literature Review

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Super‐Refractory Status Epilepticus (SRSE) is a rare, life‐threatening neurological emergency with unclear etiology in many cases. Mitochondrial dysfunction, often due to disease‐causing genetic variants, is increasingly recognized as a cause, with each gene producing distinct pathophysiological mechanisms.
Pouria Mohammadi, Lara Basovic, Christopher Michael McGraw   +2 more
wiley   +1 more source

Effect of the NO concentration on the ratio I₅₅₇.₇/I₄₂₇.₈ in auroras

Solar-Terrestrial Physics
We have examined the effect of the nitrogen oxide concentration on the ratio between λ557.7 nm and λ427.8 nm emission intensities in auroras caused by precipitating electron fluxes, using the numerical simulation method.
Ivanov V. E., Dashkevich Z. V.
doaj   +1 more source

Energetic Electron Precipitation during Slot Region Filling Events

Journal of Geophysical Research: Space Physics, 2023
The region separating the inner and outer radiation belt, typically devoid of energetic electrons, is termed the slot region. The outer edge of the slot region marks the equatorward edge of the energetic electron precipitation (EEP) originating from the outer radiation belt.
H. Nesse, E. M. Babu, J. A. Salice, B. Funke   +3 more
openaire   +3 more sources

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Measurements and Modeling of Electron Precipitation Induced by the Ionospheric Heating Experiment

Space Weather
Through the emission of high‐frequency radio waves, ground‐based heating facilities can generate Extremely‐Low‐Frequency (ELF) and Very‐Low‐Frequency (VLF) waves in the ionosphere, a portion of which can penetrate into the Earth's radiation belts and ...
Haotian Xu, Wei Xu, Binbin Ni, Zheng Xiang, Xudong Gu, Poorya Hosseini, Zhima Zeren, Jianping Huang, Yanyan Yang, Yangxizi Liu, Taifeng Jin, Wen Cheng, Jingyuan Feng, Wenchen Ma, Yudi Pan   +14 more
doaj   +1 more source

Estimating the average energy of auroral electrons from 427.8 nm emission intensity measurements

Solar-Terrestrial Physics
We propose a method for estimating average energy of precipitating electrons from 427.8 nm emission intensity measurements. This method is based on the experimental dependence of the ratio of λ630.0 and λ427.8 nm emission intensities on the λ427.8 ...
Dashkevich Z. V., Ivanov V. E.
doaj   +1 more source