Energetic particles beyond the heliospheric shock: Anomalous Cosmic Rays (ACRs), Pick-Up Ions (PUIs) and the associated energetic neutral atoms (ENAs)

2000 ◽  
Author(s):  
Horst Fichtner
Keyword(s):  
Cosmic Rays ◽  
Energetic Particles ◽  
Neutral Atoms ◽  
Anomalous Cosmic Rays ◽  
Energetic Neutral Atoms ◽  
Heliospheric Shock

SIMULATION OF ENERGETIC NEUTRAL ATOMS FROM SOLAR ENERGETIC PARTICLES

2014 ◽  
Vol 793 (2) ◽  
pp. L37 ◽  
Author(s):  
Linghua Wang ◽  
Gang Li ◽  
Albert Y. Shih ◽  
Robert P. Lin ◽  
Robert F. Wimmer-Schweingruber
Keyword(s):  
Energetic Particles ◽  
Solar Energetic Particles ◽  
Neutral Atoms ◽  
Energetic Neutral Atoms

scholarly journals Composition of Anomalous Cosmic Rays and Other Heliospheric Ions

2002 ◽  
Vol 578 (1) ◽  
pp. 194-210 ◽  
Author(s):  
A. C. Cummings ◽  
E. C. Stone ◽  
C. D. Steenberg
Keyword(s):  
Cosmic Rays ◽  
Anomalous Cosmic Rays

scholarly journals On particle acceleration and transport in plasmas in the Galaxy: theory and observations

2021 ◽  
Vol 87 (1) ◽  
Author(s):  
Elena Amato ◽  
Sabrina Casanova
Keyword(s):  
Particle Acceleration ◽  
Cosmic Rays ◽  
Galactic Cosmic Rays ◽  
Energetic Particles ◽  
Quality Data ◽  
Current Status ◽  
The Earth ◽  
The Galaxy ◽  
Formation And Evolution ◽  
Galaxy Assembly

Accelerated particles are ubiquitous in the Cosmos and play a fundamental role in many processes governing the evolution of the Universe at all scales, from the sub-AU scale relevant for the formation and evolution of stars and planets to the Mpc scale involved in Galaxy assembly. We reveal the presence of energetic particles in many classes of astrophysical sources thanks to their production of non-thermal radiation, and we detect them directly at the Earth as cosmic rays. In the last two decades both direct and indirect observations have provided us a wealth of new, high-quality data about cosmic rays and their interactions both in sources and during propagation, in the Galaxy and in the Solar System. Some of the new data have confirmed existing theories about particle acceleration and propagation and their interplay with the environment in which they occur. Some others have brought about interesting surprises, whose interpretation is not straightforward within the standard framework and may require a change of paradigm in terms of our ideas about the origin of cosmic rays of different species or in different energy ranges. In this article, we focus on cosmic rays of galactic origin, namely with energies below a few petaelectronvolts, where a steepening is observed in the spectrum of energetic particles detected at the Earth. We review the recent observational findings and the current status of the theory about the origin and propagation of galactic cosmic rays.

Sign in / Sign up

Export Citation Format

Share Document