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Solar energetic particles : a modern primer on understanding sources, acceleration and propagation / Donald V. Reames.

9783319508719 (electronic book)
3319508717 (electronic book)
9783319508702

Cham, Switzerland : Springer, 2017.

English

1 online resource (xvi, 127 pages) : illustrations.

10.1007/978-3-319-50871-9 doi

QB526.S65

536.7/223

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.

Includes bibliographical references.

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Online resource; title from PDF title page (SpringerLink, viewed March 21, 2017).

Lecture notes in physics ; 932.

Print version: 9783319508702

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