Electromagnetic waves and electrostatic oscillations in an inhomogeneous plasma structure at the geomagnetic equator |
| |
| Authors: | N I Izhovkina I S Prutensky S A Pulinets N S Erokhin L A Mikhailovskaya Z Klos H Rothkaehl |
| |
| Institution: | (1) Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia;(2) Space Research Institute, Profsoyuznaya ul. 84/32, Moscow, 117997, Russia;(3) Space Research Center, CBK RAN, Bartycka, 18a, 00-716 Warsaw, Poland |
| |
| Abstract: | The measurements of the broadband wave radiation in the region of the geomagnetic equator in the topside ionosphere are presented (the APEX satellite experiment). It has been indicated that the electromagnetic radiation, observed in a plasma density pit, could be related to the formation of a large-scale plasma cavern in the vicinity of the geomagnetic equatorial surface. A large-scale plasma density pit could be formed in the region of heating during damping of plasma vortical structures and electrostatic oscillations, propagating across geomagnetic field lines and crossing the geomagnetic equatorial surface. Brightness of the electromagnetic radiation, observed at frequencies higher than the plasma eigenfrequencies and local plasma and/or upper hybrid frequencies, decreases with increasing eigenfrequencies. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
