Solar Energetic Particles
A Modern Primer on Understanding Sources, Acceleration and Propagation
Buch in deiner Nähe kaufen
Beschreibung
This open access book serves as a concise primer introducing the non-specialist reader to the physics of solar energetic particles (SEP). It systematically reviews the evidence for the two main mechanisms which lead to the so-called impulsive and gradual SEP events. This second edition contains two completely new chapters discussing element abundances and shock waves, reflecting new theoretical, modeling, and observational results. Existing chapters have been substantially expanded or updated with additions placed in a broader context.
More specifically, the author discusses the timing of the onsets of SEPs, their longitude distributions, their high-energy spectral shapes, their correlations with other solar phenomena, as well as the all-important elemental and isotopic abundances. The book relates impulsive SEP events to magnetic reconnection in solar flares and jets. The concept of shock acceleration by scattering on self-amplified Alfvén waves is introduced, as is the evidence of reacceleration of impulsive-SEP material in the seed population accessed by the shocks in gradual events. The text then develops processes of transport of ions out to an observer. Finally, a technique to determine the source plasma temperature in both impulsive and gradual events is demonstrated.The author also mentions the role of SEP events as a radiation hazard in space and briefly discusses the nature of the main particle telescope designs that have contributed to most of the SEP measurements.
This open access book serves as a concise primer introducing the non-specialist reader to the physics of solar energetic particles (SEP). It systematically reviews the evidence for the two main mechanisms which lead to the so-called impulsive and gradual SEP events. This second edition contains two completely new chapters discussing element abundances and shock waves, reflecting new theoretical, modeling, and observational results. Existing chapters have been substantially expanded or updated with additions placed in a broader context.
More specifically, the author discusses the timing of the onsets of SEPs, their longitude distributions, their high-energy spectral shapes, their correlations with other solar phenomena, as well as the all-important elemental and isotopic abundances. The book relates impulsive SEP events to magnetic reconnection in solar flares and jets. The concept of shock acceleration by scattering on self-amplified Alfvén waves is introduced, as is theevidence of reacceleration of impulsive-SEP material in the seed population accessed by the shocks in gradual events. The text then develops processes of transport of ions out to an observer. Finally, a technique to determine the source plasma temperature in both impulsive and gradual events is demonstrated.The author also mentions the role of SEP events as a radiation hazard in space and briefly discusses the nature of the main particle telescope designs that have contributed to most of the SEP measurements.
Self-contained, introductory presentation aimed primarily at a non-specialist readership Second edition adding 2 new chapters and substantially expanding existing chapters This book is open access, which means that you have free and unlimited access
Autor*in
Donald V. Reames
Themen in »Solar Energetic Particles«
Open Access Impulsive SEP events Gradual SEP events Space Weather Coronal elemental abundances Solar wind Space plasma physics SEP measurements Coronal mass ejections
Stimmen zu »Solar Energetic Particles«
“Donald V. Reames presents a clear contemporary account of observational and theoretical studies of the principal families of solar energetic particles (SEPs) … . A delightful sense that this lively presentation is drawn from Reames’ decades of experimental investigations of SEPs pervades the book. … This excellent primer by Reames is a thorough account of SEP events with parallel discussions of the solar wind. It deserves to be read by stellar astronomers.” (David L. Lambert, The Observatory, Vol. 142 (1287), April, 2022)
()