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Ion-Sound Waves during the Interaction of Meteoroid Tails with the Earth's Ionosphere.
- Source :
-
Plasma Physics Reports . Jul2024, Vol. 50 Issue 7, p829-833. 5p. - Publication Year :
- 2024
-
Abstract
- The ion-acoustic instability in the tails of meteoroids as a result of their passage through the Earth's atmosphere is studied and the conditions under which it develops are given. The development of this instability occurs as a result of the relative motion of the plasma of meteoroid tails and the dusty plasma of the Earth's ionosphere. Dust, in turn, creates conditions when this instability can develop in a situation of approximately equal ion and electron temperatures, which is observed in the plasma–dust system under consideration. The mechanism of the excitation of ion-sound waves as a result of the development of the ion-acoustic instability in meteoroid tails is shown. The growth rates of the ion-acoustic instability and the characteristic times of its development are found. It is shown that the instability has time to develop during the time of passage of a meteoroid body in the Earth's atmosphere and the formation of a meteoroid trail, which has values much greater than the time of development of ion-acoustic instability in the system under consideration. The wave vectors and velocities of meteoric bodies, at which the development of the ion-acoustic instability is expected, are found. It is noted that the instability can reach a nonlinear regime at possible large wave amplitudes. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RELATIVE motion
*ATMOSPHERE
*METEOROIDS
*ION temperature
*IONOSPHERE
*SOUND waves
Subjects
Details
- Language :
- English
- ISSN :
- 1063780X
- Volume :
- 50
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Plasma Physics Reports
- Publication Type :
- Academic Journal
- Accession number :
- 179460891
- Full Text :
- https://doi.org/10.1134/S1063780X24600622