Results 91 to 100 of about 2,661,724 (245)

On the cause and extent of outer radiation belt losses during the 30 September 2012 dropout event [PDF]

, 2014
On 30 September 2012, a flux dropout occurred throughout Earth\u27s outer electron radiation belt during the main phase of a strong geomagnetic storm.
Angelopoulos, V., Baker, D. N., Blake, J. B., Boyd, A. J., Claudepierre, S., Henderson, M. G., Huang, Chia-Lin L., Li, W., Morley, S. K., Reeves, Geoffrey, Rodriguez, J. V., Spence, Harlan E., Turner, D. L.   +12 more
core   +3 more sources

Parker Solar Probe Observations of Proton Core‐Beam Distributions in Heliospheric Current Sheet Region: Quasilinear Instability Analysis Combined With Collisional Relaxation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Parker Solar Probe has been proven as instrumental for the observation of young solar wind. During the encounters E‐07 and E‐08, PSP recorded the core plus beaming protons crossing the heliospheric current Sheet region. When the observed PSP data is plotted in the temperature ratio versus parallel beta space, it is found that the occurrence ...
M. Rashid, P. H. Yoon, J. Huang, C. Salem, M. Sarfraz, S. Alnussirat, R. A. López, J. Seough, H. Xie, D. Larson, R. Livi   +10 more
wiley   +1 more source

Ionospheric Plasma Density Oscillation Related to EMIC Pc1 Waves

Geophysical Research Letters, 2020
AbstractWe report the first observation of plasma density oscillations coherent with magnetic Pc1 waves. Swarm satellites observed compressional Pc1 wave activity in the 0.5–3 Hz band, which was coherent with in situ plasma density oscillations. Around the Pc1 event location, the Antarctic Neumayer Station III (L ~ 4.2) recorded similar Pc1 events in ...
Hyangpyo Kim, Kazuo Shiokawa, Jaeheung Park, Yoshizumi Miyoshi, Yukinaga Miyashita, Claudia Stolle, Khan‐Hyuk Kim, Jürgen Matzka, Stephan Buchert, Tanja Fromm, Junga Hwang   +10 more
openaire   +4 more sources

ULF Wave Modulation of Energetic Electron Precipitation Caused by the Self‐Limiting of Space Radiation: May 2024 Superstorm Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The May 2024 geomagnetic superstorm provided the opportunity to explore how strong wave‐particle interactions affect energetic electron precipitation under intense driving. Using coordinated measurements from a balloon‐borne Timepix‐based X‐ray detector, ground‐based riometers and magnetometers, and Arase satellite observations, we identified ...
L. Olifer, D. Zhou, M. Patel, I. R. Mann, M. K. Hudson, A. W. Degeling, C. O. Heinke, G. R. Sivakoff, A. Kale, S. Kasahara, S. Yokota, K. Keika, T. Hori, T. Mitani, T. Takashima, Y. Kasahara, S. Matsuda, A. Shinbori, A. Matsuoka, M. Teramoto, K. Yamamoto, I. Shinohara, Y. Miyoshi   +22 more
wiley   +1 more source

Energetic proton acceleration by EMIC waves in Io’s footprint tail

Frontiers in Astronomy and Space Sciences, 2023
In this study, we present a survey of energetic proton observations associated with Io’s footprint tail (FPT) and compare their signatures with in situ measurements of the plasma waves and lower-energy electron environments.
G. Clark, J. Szalay, A. Sulaiman, J. Saur, P. Kollmann, B. Mauk, C. Paranicas, V. Hue, T. Greathouse, F. Allegrini, A. Glocer, K. Garcia‐Sage, S. Bolton   +12 more
semanticscholar   +1 more source

Geomagnetic disturbances on ground associated with particle precipitation during SC [PDF]

, 2010
We have examined several cases of magnetosphere compression by solar wind pressure pulses using a set of instruments located in the noon sector of auroral zone. We have found that the increase in riometric absorption (sudden commencement absorption, SCA)
Honary, F., Kozlovsky, A., Safargaleev, V., Turunen, T., Voronin, A.   +4 more
core   +3 more sources

Calculating Quasi‐Linear Diffusion Rates Using Different Methods to Specify the Wave Spectrum

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Quasi‐linear diffusion theory is widely used in radiation belt modeling to describe resonant interactions between charged particles and electromagnetic waves. The diffusion rates depend on the wave spectrum and properties of the background plasma.
J. D. Sadler, R. B. Horne, S. A. Glauert, T. A. Daggitt, J. M. Albert, G. Del Zanna   +5 more
wiley   +1 more source

Energetic ions scattered into the loss cone with observations of the Cluster satellite [PDF]

Annales Geophysicae, 2016
In this paper, we report in situ observations by the Cluster spacecraft of energetic ions scattered into the loss cone during the inbound pass from the plasma sheet into the plasmasphere.
Y. Xiong, Y. Xiong, Z. Yuan, J. Wang
doaj   +1 more source

Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm [PDF]

, 2014
Local acceleration driven by whistler-mode chorus waves is fundamentally important for accelerating seed electron populations to highly relativistic energies in the outer radiation belt.
Baker, D. N., Blake, J. B., Bortnik, J., Claudepierre, S., Fennell, Joseph F., Green, J. C., Hospodarsky, G. B., Kanekal, S. G., Kletzing, C A., Kurth, W. S., Li, W., Ma, Q., Ni, B., Reeves, Geoffrey, Spence, Harlan E., Thorne, R. M.   +15 more
core   +2 more sources

Van Allen Probes, THEMIS, GOES, and Cluster Observations of EMIC waves, ULF pulsations, and an electron flux dropout [PDF]

, 2016
We examined an electron flux dropout during the 12-14 November 2012 geomagnetic storm using observations from seven spacecraft: the two Van Allen Probes, Time History of Events and Macroscale Interactions during Substorms (THEMIS)-A (P5), Cluster 2, and ...
Baker, DN, Blake, JB, Carr, CM, Green, JC, Kletzing, CA, MacDowall, R, Reeves, G, Santolik, O, Sigsbee, K, Singer, HJ, Smith, CW, Spence, H   +11 more
core   +1 more source