Solphys '97 ProceedingsIndex



Solitary Waves in the Earth's Upper Ionosphere

S. H. Kjus, H. L. Pécseli, B. Lybekk, J. Holtet

Physics Department, University of Oslo,
Box 1048 Blindern, N-0316 Oslo, Norway

J. Trulsen

Institute for Theoretical Astrophysics, University of Oslo,
Box 1029 Blindern N-0315 Oslo, Norway

A. Eriksson

Swedish Institute of Space Physics,
S-755 91 Uppsala, Sweden



Abstract


 Localized electrostatic wave packets in the frequency range of lower hybrid waves have been detected by the instruments on the FREJA satellite and earlier also by instrumented rocket payloads. These waves are often associated with local density depletions, indicating that the structures can be interpreted as wave filled cavities which are strongly elongated along the magnetic field. Frequently, the observed wave packets have the appearance of almost textbook illustrations of envelope solitons. The basic features of the observations are presented and discussed.


Document


Pecseli.ps.gz


Contact information
S. H. Kjus, H. L. Pécseli, B. Lybekk and J. Holtet

Physics Department, University of Oslo,
Box 1048 Blindern, N-0316 Oslo, Norway
Fax: +47 22 85 56 71
E-mail: s.h.kjus@fys.uio.no
URL (homepage): http://www.uio.no/~skjus/index.html
URL (institution): http://www.fys.uio.no/plasma/index.html

J. Trulsen

Institute for Theoretical Astrophysics, University of Oslo,
Box 1029 Blindern N-0315 Oslo, Norway

A. Eriksson

Swedish Institute of Space Physics,
S-755 91 Uppsala, Sweden



Solphys '97 ProceedingsIndex