Results 11 to 20 of about 36,673 (286)

Electron acceleration in the Van Allen radiation belts by fast magnetosonic waves [PDF]

Geophysical Research Letters, 2007
Local acceleration is required to explain electron flux increases in the outer Van Allen radiation belt during magnetic storms. Here we show that fast magnetosonic waves, detected by Cluster 3, can accelerate electrons between ∼10 keV and a few MeV inside the outer radiation belt.
Horne, Richard B., Thorne, Richard M., Glauert, Sarah A., Meredith, Nigel P., Pokhotelov, Dimitry, Santolik, Ondrej   +5 more
semanticscholar   +5 more sources

The energization of relativistic electrons in the outer Van Allen radiation belt [PDF]

Nature Physics, 2007
The origin and dynamics of the Van Allen radiation belts is one of the longest-standing questions of the space age, and one that is increasingly important for space applications as satellite systems become more sophisticated, smaller and more susceptible to radiation effects.
Yue Chen, Geoffrey D. Reeves, Reiner H. W. Friedel   +2 more
openaire   +2 more sources

Evidence of Microbursts Observed Near the Equatorial Plane in the Outer Van Allen Radiation Belt

Geophysical Research Letters, 2018
We present the first evidence of electron microbursts observed near the equatorial plane in Earth's outer radiation belt. We observed the microbursts on 31 March 2017 with the Magnetic Electron Ion Spectrometer and Radiation Belt Storm Probes Ion ...
Mykhaylo Shumko, Drew L. Turner, T. P. O'Brien, Seth G. Claudepierre, John Sample, D. P. Hartley, Joseph Fennel, J. Bernard Blake, Matina Gkioulidou, Donald G. Mitchell   +9 more
doaj   +2 more sources

Radiation Belt Daily Average Electron Flux Model (RB‐Daily‐E) From the Seven‐Year Van Allen Probes Mission and Its Application to Interpret GPS On‐Orbit Solar Array Degradation

Space Weather, 2022
We use NASA's Van Allen Probes data to build a 3‐dimensional Radiation Belt Daily Average Electron flux model (RB‐Daily‐E) covering 25 differential energies (33–7,700 keV), 17 pitch angles, and a variable number of L shells from 2 to 7. RB‐Daily‐E can be
Christine Gabrielse, Justin H. Lee, Seth Claudepierre, Don Walker, Paul O’Brien, James Roeder, Yao Lao, Jann Grovogui, Drew L. Turner, Andrei Runov, Alexander Boyd, Joseph Fennell, J. Bernard Blake, Kevin Lopez, Yoshizumi Miyoshi, Kunihiro Keika, Nana Higashio, Iku Shinohara, Shun Imajo, Satoshi Kurita, Takefumi Mitani   +20 more
doaj   +2 more sources

Quantifying the Size and Duration of a Microburst‐Producing Chorus Region on 5 December 2017 [PDF]

Geophysical Research Letters, 2022
Microbursts are impulsive (30 keV) precipitation (FIREBIRD II and AC6 CubeSats, POES) to determine the size of the microburst‐producing chorus source region beginning on 5 December 2017.
S. S. Elliott, A. W. Breneman, C. Colpitts, J. M. Pettit, C. A. Cattell, A. J. Halford, M. Shumko, J. Sample, A. T. Johnson, Y. Miyoshi, Y. Kasahara, C. M. Cully, S. Nakamura, T. Mitani, T. Hori, I. Shinohara, K. Shiokawa, S. Matsuda, M. Connors, M. Ozaki, J. Manninen   +20 more
doaj   +2 more sources

Impact of ICME sheath planarity on Earth’s outer radiation belt [PDF]

Scientific Reports
A planar magnetic structure refers to a compressed and ordered region in interplanetary space where magnetic field vectors are predominantly confined to a plane.
Kalpesh Ghag, Ankush Bhaskar, Anil Raghav, Omkar Dhamane, Mary Hudson, Kishor Kumbhar, Mariyam Karari, Mohit Shah, Ajay Kumar, Ganesh Shitole   +9 more
doaj   +2 more sources

Unlocking the Secrets of Van Allen Radiation Belt Dynamics

, 2015
Overview: Van Allen Radiation Belts and Why do we care? Introduction: Characterizing the radiation belt dynamics. Modeling Work: Source, Transport, and Loss Conclusion: Challenges and Opportunities.
Weichao Tu
openaire   +4 more sources

Wave acceleration of electrons in the Van Allen radiation belts

Nature, 2005
The Van Allen radiation belts are two regions encircling the Earth in which energetic charged particles are trapped inside the Earth's magnetic field. Their properties vary according to solar activity and they represent a hazard to satellites and humans in space.
Horne, Richard B., Thorne, Richard M., Shprits, Yuri Y., Meredith, Nigel P., Glauert, Sarah A., Smith, Andy J., Kanekal, Shrikanth G., Baker, Daniel N., Engebretson, Mark J., Posch, Jennifer L., Spasojevic, Maria, Inan, Umran S., Pickett, Jolene S., Decreau, Pierrette M.E.   +13 more
openaire   +8 more sources

Van Allen Probes observations linking radiation belt electrons to chorus waves during 2014 multiple storms [PDF]

, 2015
During 18 February to 2 March 2014, the Van Allen Probes encountered multiple geomagnetic storms and simultaneously observed intensified chorus and hiss waves. During this period, there were substantial enhancements in fluxes of energetic (53.8–108.3 keV)
Baker, D. N., Blake, J. B., Funsten, H. O., He, Yihua, Hospodarsky, G. B., Kletzing, C A., Kurth, W. S., Liu, Si, Reeves, Geoffrey, Spence, Harlan E., Wygant, J. R., Xiao, Fuliang, Yang, Chang, Zhou, Qinghua   +13 more
core   +5 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