 |
| Titel |
Properties and the origin of Almost Monoenergetic Ion (AMI) beams observed near the Earth's bow shock |
| VerfasserIn |
V. N. Lutsenko, E. A. Gavrilova |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
0992-7689
|
| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 29, no. 8 ; Nr. 29, no. 8 (2011-08-29), S.1439-1454 |
| Datensatznummer |
250017077
|
| Publikation (Nr.) |
 copernicus.org/angeo-29-1439-2011.pdf |
|
|
|
|
|
| Zusammenfassung |
| Beams of Almost Monoenergetic Ions (AMI) in the energy range from 20 to 800 keV
were discovered in the DOK-2 experiment (Interball project) in the
magnetosheath and upstream of the Earth's bow shock. This work summarizes the
analysis results of ~730 AMI events registered in 1995–2000. Statistics
of AMI properties, their nature and origin are considered. The analysis of a
large array of new data confirmed our earlier suggested ideas on the AMI
nature, origin, and their acceleration model. These ideas were further
developed and refined. According to this model, AMI are a result of solar
wind ions acceleration in small regions with a potential electric field
arising due to disruptions of the bow shock current sheet filaments. It has
been found that the reason of the current filaments disruptions in most cases
was the Hot Flow Anomaly phenomenon (HFA) caused by an interaction of a
tangential discontinuity in the solar wind with the Earth's bow shock. It is
shown that the study of AMI can provide new information on large-scale
properties and dynamics of the bow shock current sheet. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|