scholarly journals Solar energetic particle flux enhancement as a predictor of geomagnetic activity in a neural network-based model

Space Weather ◽  
2009 ◽  
Vol 7 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
F. Valach ◽  
M. Revallo ◽  
J. Bochníček ◽  
P. Hejda
Keyword(s):  
Neural Network ◽  
Geomagnetic Activity ◽  
Energetic Particle ◽  
Particle Flux ◽  
Solar Energetic Particle ◽  
Flux Enhancement ◽  
Energetic Particle Flux

scholarly journals Cosmic ray and solar energetic particle flux in paleomagnetospheres

2010 ◽  
Vol 62 (3) ◽  
pp. 333-345 ◽  
Author(s):  
Anja Stadelmann ◽  
Joachim Vogt ◽  
Karl-Heinz Glassmeier ◽  
May-Britt Kallenrode ◽  
Gerd-Hannes Voigt
Keyword(s):  
Energetic Particle ◽  
Particle Flux ◽  
Solar Energetic Particle ◽  
Cosmic Ray ◽  
Energetic Particle Flux

scholarly journals Recurrent Solar Energetic Particle Flux Enhancements Observed near Earth and Mars

2020 ◽  
Vol 902 (1) ◽  
pp. 13
Author(s):  
C. Krishnaprasad ◽  
Smitha V. Thampi ◽  
Anil Bhardwaj ◽  
Christina O. Lee ◽  
K. Kishore Kumar ◽  
...  
Keyword(s):  
Energetic Particle ◽  
Particle Flux ◽  
Solar Energetic Particle ◽  
Energetic Particle Flux

An Unusual Energetic Particle Flux Enhancement Associated with Solar Wind Magnetic Island Dynamics

2018 ◽  
Vol 864 (2) ◽  
pp. L34 ◽  
Author(s):  
L.-L. Zhao ◽  
G. P. Zank ◽  
O. Khabarova ◽  
S. Du ◽  
Y. Chen ◽  
...  
Keyword(s):  
Solar Wind ◽  
Energetic Particle ◽  
Particle Flux ◽  
Magnetic Island ◽  
Flux Enhancement ◽  
Energetic Particle Flux ◽  
Island Dynamics

scholarly journals Unusual enhancement of ~ 30 MeV proton flux in an ICME sheath region

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Mitsuo Oka ◽  
Takahiro Obara ◽  
Nariaki V. Nitta ◽  
Seiji Yashiro ◽  
Daikou Shiota ◽  
...  
Keyword(s):  
Shock Front ◽  
Energetic Particle ◽  
Leading Edge ◽  
Solar Energetic Particle ◽  
Interplanetary Shock ◽  
Proton Event ◽  
Sheath Region ◽  
Time Profiles ◽  
Energetic Particle Flux ◽  
Mev Protons

AbstractIn gradual Solar Energetic Particle (SEP) events, shock waves driven by coronal mass ejections (CMEs) play a major role in accelerating particles, and the energetic particle flux enhances substantially when the shock front passes by the observer. Such enhancements are historically referred to as Energetic Storm Particle (ESP) events, but it remains unclear why ESP time profiles vary significantly from event to event. In some cases, energetic protons are not even clearly associated with shocks. Here, we report an unusual, short-duration proton event detected on 5 June 2011 in the compressed sheath region bounded by an interplanetary shock and the leading edge of the interplanetary CME (or ICME) that was driving the shock. While < 10 MeV protons were detected already at the shock front, the higher-energy (> 30 MeV) protons were detected about four hours after the shock arrival, apparently correlated with a turbulent magnetic cavity embedded in the ICME sheath region.

Unusual enhancement of ~30 MeV proton flux in an ICME sheath region

2021 ◽  
Author(s):  
Mitsuo Oka ◽  
Takahiro Obara ◽  
Nariaki Nitta ◽  
Seiji Yashiro ◽  
Daikou Shiota ◽  
...  
Keyword(s):  
Shock Front ◽  
Energetic Particle ◽  
Leading Edge ◽  
Solar Energetic Particle ◽  
Interplanetary Shock ◽  
Proton Event ◽  
Sheath Region ◽  
Time Profiles ◽  
Energetic Particle Flux ◽  
Mev Protons

&lt;p&gt;In gradual Solar Energetic Particle (SEP) events, shock waves driven by coronal mass ejections (CMEs) play a major role in accelerating particles, and the energetic particle flux enhances substantially when the shock front passes by the observer. Such enhancements are historically referred to as Energetic Storm Particle (ESP) events, but it remains unclear why ESP time profiles vary significantly from event to event. In some cases, energetic protons are not even clearly associated with shocks. Here we report an unusual, short-duration proton event detected on 5 June 2011 in the compressed sheath region bounded by an interplanetary shock and the leading-edge of the interplanetary CME (or ICME) that was driving the shock. While &lt;10 MeV protons were detected already at the shock front, the higher-energy (&gt;30 MeV) protons were detected about four hours after the shock arrival, apparently correlated with a turbulent magnetic cavity embedded in the ICME sheath region.&lt;/p&gt;

scholarly journals Energetic-particle-flux decreases related to magnetic cloud passages as observed by the Helios 1 and 2 spacecraft

2013 ◽  
Vol 556 ◽  
pp. A146 ◽  
Author(s):  
J. J. Blanco ◽  
M. A. Hidalgo ◽  
R. Gómez-Herrero ◽  
J. Rodríguez-Pacheco ◽  
B. Heber ◽  
...  
Keyword(s):  
Energetic Particle ◽  
Particle Flux ◽  
Magnetic Cloud ◽  
Energetic Particle Flux
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