Mode Conversion of Waves in the Ion-Cyclotron Frequency Range in Magnetospheric Plasmas
Artikel i vetenskaplig tidskrift, 2013

Waves in the ion-cyclotron range of frequencies with linear polarization detected by satellites can be useful for estimating the heavy ion concentrations in planetary magnetospheres. These waves are considered to be driven by mode conversion (MC) of the fast magnetosonic waves at the ion-ion hybrid resonances. In this Letter, we derive analytical expressions for the MC efficiency and tunneling of waves through the MC layer. We evaluate the particular parallel wave numbers for which MC is efficient for arbitrary heavy ion/proton ratios and discuss the interpretation of the experimental observations.

Mercury

ULF waves

Earth

mode conversion

Författare

Yevgen Kazakov

Chalmers, Teknisk fysik, Nukleär teknik

Tünde Fülöp

Chalmers, Teknisk fysik, Nukleär teknik

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 111 125002-

Fundament

Grundläggande vetenskaper

Ämneskategorier

Geovetenskap och miljövetenskap

Fusion, plasma och rymdfysik

DOI

10.1103/PhysRevLett.111.125002