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| Content Provider | Springer Nature Link |
|---|---|
| Author | Karlický, Marian |
| Copyright Year | 1997 |
| Abstract | This work addresses the observational and physical effects of particle beams in the solar atmosphere. Mainly electron beams are considered, but also some effects of proton and neutral beams are mentioned. Briefly describing acceleration mechanisms of superthermal particles, the main attention is devoted to effects influencing the particle beam propagation. The collisional energy losses and pitch-angle scattering, return current effects, mirroring in the converging magnetic field, and the scattering in the Alfvén and whistler wave turbulence in specific situations are considered. The role of quasi-linear relaxation is discussed. Examples of observations showing effects of particle beams in the solar atmosphere are presented throughout the paper. Separate chapters are devoted to processes connected with particle beam bombardment of dense layers of the solar atmosphere: hard X-ray and γ-ray flare emissions, evaporation process, asymmetry of optical chromospheric lines, and impact linear Hα line polarization. The beam induced energy release processes are also included. The presented effects of particle beams are summarized in the conclusions and future prospects are suggested. |
| Starting Page | 143 |
| Ending Page | 172 |
| Page Count | 30 |
| File Format | |
| ISSN | 00386308 |
| Journal | Space Science Reviews |
| Volume Number | 81 |
| Issue Number | 1-2 |
| e-ISSN | 15729672 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 1997-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Astronomy, Astrophysics and Cosmology Extraterrestrial Physics, Space Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
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