CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Tunneling and mode conversion of fast magnetosonic waves in the magnetospheres of Earth and Mercury

Yevgen O. Kazakov ; Tünde Fülöp (Institutionen för teknisk fysik, Nukleär teknik)
Journal of Plasma Physics (0022-3778). Vol. 81 (2015), 2,
[Artikel, refereegranskad vetenskaplig]

Narrow-band linearly polarized waves, having a resonant structure and a peak frequency between the local cyclotron frequency of protons and heavy ions, have been detected in the magnetospheres of Earth and of Mercury. Some of these wave events have been suggested to be driven by linear mode conversion (MC) of the fast magnetosonic waves (FWs) at the ion–ion hybrid (IIH) resonances. Since the resonant IIH frequency is linked to the plasma composition, solving the inverse problem allows one to infer the concentration of the heavy ions from the measured frequency spectra. In this paper, we identify the conditions when the MC efficiency is maximized in the magnetospheric plasmas and discuss how this can be applied for estimating the heavy ion concentration in the magnetospheres of Earth and Mercury.




Denna post skapades 2014-12-11. Senast ändrad 2015-05-28.
CPL Pubid: 207924

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för teknisk fysik, Nukleär teknik (2006-2015)

Ämnesområden

Rymdfysik
Plasmafysik

Chalmers infrastruktur