Reames, Donald V.
Solar Energetic Particles A Modern Primer on Understanding Sources, Acceleration and Propagation / [electronic resource] : by Donald V. Reames. - 1st ed. 2017. - XVI, 127 p. 79 illus., 61 illus. in color. online resource. - Lecture Notes in Physics, 932 0075-8450 ; . - Lecture Notes in Physics, 932 .
Introduction -- History -- Distinguishing Two Sources -- Impulsive SEP events -- Gradual SEP Events -- High Energies and Radiation Effects -- Measurements of SEPs -- Summary and Conclusions.
This concise primer introduces the non-specialist reader to the physics of solar energetic particles (SEP) and systematically reviews the evidence for the two main mechanisms which lead to the so-called impulsive and gradual SEP events. More specifically, the timing of the onsets, the longitude distributions, the high-energy spectral shapes, the correlations with other solar phenomena (e.g. coronal mass ejections), as well as the all-important elemental and isotopic abundances of SEPs are investigated. Impulsive SEP events are related 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 new technique to determine the source plasma temperature in both impulsive and gradual events is demonstrated. Last but not least the role of SEP events as a radiation hazard in space is mentioned and a short discussion of the nature of the main particle telescope designs that have contributed to most of the SEP measurements is given.
9783319508719
10.1007/978-3-319-50871-9 doi
Space sciences.
Plasma (Ionized gases).
Geophysics.
Observations, Astronomical.
Astronomy—Observations.
Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics).
Plasma Physics.
Geophysics/Geodesy.
Astronomy, Observations and Techniques.
QB495-500.269
520 500.5
Solar Energetic Particles A Modern Primer on Understanding Sources, Acceleration and Propagation / [electronic resource] : by Donald V. Reames. - 1st ed. 2017. - XVI, 127 p. 79 illus., 61 illus. in color. online resource. - Lecture Notes in Physics, 932 0075-8450 ; . - Lecture Notes in Physics, 932 .
Introduction -- History -- Distinguishing Two Sources -- Impulsive SEP events -- Gradual SEP Events -- High Energies and Radiation Effects -- Measurements of SEPs -- Summary and Conclusions.
This concise primer introduces the non-specialist reader to the physics of solar energetic particles (SEP) and systematically reviews the evidence for the two main mechanisms which lead to the so-called impulsive and gradual SEP events. More specifically, the timing of the onsets, the longitude distributions, the high-energy spectral shapes, the correlations with other solar phenomena (e.g. coronal mass ejections), as well as the all-important elemental and isotopic abundances of SEPs are investigated. Impulsive SEP events are related 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 new technique to determine the source plasma temperature in both impulsive and gradual events is demonstrated. Last but not least the role of SEP events as a radiation hazard in space is mentioned and a short discussion of the nature of the main particle telescope designs that have contributed to most of the SEP measurements is given.
9783319508719
10.1007/978-3-319-50871-9 doi
Space sciences.
Plasma (Ionized gases).
Geophysics.
Observations, Astronomical.
Astronomy—Observations.
Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics).
Plasma Physics.
Geophysics/Geodesy.
Astronomy, Observations and Techniques.
QB495-500.269
520 500.5