On the Interaction of Galactic Cosmic Rays with Heliospheric Shocks During Forbush Decreases

@article{Kirin2020OnTI,
  title={On the Interaction of Galactic Cosmic Rays with Heliospheric Shocks During Forbush Decreases},
  author={Anamarija Kirin and Bojan Vr{\vs}nak and Mateja Dumbovi{\'c} and Bernd Heber},
  journal={Solar Physics},
  year={2020},
  volume={295},
  pages={1-13}
}
Forbush decreases (FDs) are depletions in the galactic cosmic ray (GCR) count rate that last typically for about a week and can be caused by coronal mass ejections (CMEs) or corotating interacting regions (CIRs). Fast CMEs that drive shocks cause large FDs that often show a two-step decrease where the first step is attributed to the shock/sheath region, while the second step is attributed to the closed magnetic structure. Since the difference in size of shock and sheath region is significant… 
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References

SHOWING 1-10 OF 37 REFERENCES
Galactic Cosmic Ray Intensity Response to Interplanetary Coronal Mass Ejections/Magnetic Clouds in 1995 – 2009
We summarize the response of the galactic cosmic ray (CGR) intensity to the passage of the more than 300 interplanetary coronal mass ejections (ICMEs) and their associated shocks that passed the
Forbush decreases and turbulence levels at coronal mass ejection fronts
Aims. We seek to estimate the average level of MHD turbulence near coronal mass ejection (CME) fronts as they propagate from the Sun to the Earth. Methods. We examined the cosmic ray data from the
Local and nonlocal geometry of interplanetary coronal mass ejections: Galactic cosmic ray (GCR) short-period variations and magnetic field modeling
[1] Energetic galactic cosmic ray (GCR) particles, arriving within the solar system, are modulated by the overall interplanetary field carried in the solar wind. Localized disturbances related to
CORONAL MASS EJECTIONS AND FORBUSH DECREASES
Coronal Mass Ejections (CMEs) are plasma eruptions from the solar atmosphere involving previously closed field regions which are expelled into the interplanetary medium. Such regions, and the shocks
Cosmic ray modulation by different types of solar wind disturbances
Context. Solar wind disturbances such as interplanetary coronal mass ejections (ICMEs) and corotating interaction regions (CIRs) cause short-term cosmic ray depressions, generally denoted as Forbush
Cosmic ray modulation by solar wind disturbances
Aims. We perform a systematic statistical study of the relationship between characteristics of solar wind disturbances, caused by interplanetary coronal mass ejections and corotating interaction
Energetic Particles and Corotating Interaction Regions in the Solar Wind
This paper reviews three important effects on energetic particles of corotating interaction regions (CIRs) in the solar wind that are formed at the leading edges of high-speed solar wind streams
Sudden Expansion of the Corona Following a Large Solar Flare and the Attendant Magnetic Field and Cosmic-Ray Effects.
It is shown from the hydrodynamic equations that the 4 x 10/sup 6/ deg K temperatures observed in the solar corona after a large solar flare can produce a hydrodynamic blast wave, moving out through
Transient Effects and Disturbed Conditions
In the present phase of the solar cycle no big transients leading to strong modulation had been observed after 1991. Apart from a few minor disturbances cosmic rays were still recovering to a new
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