Localization of ultra-low frequency waves in multi-ion plasmas of the planetary magnetosphere
By adopting a 2D time-dependent wave code, we investigate how mode-converted waves at the Ion-Ion Hybrid (IIH) resonance and compressional waves propagate in 2D density structures with a wide range of field-aligned wavenumbers to background magnetic fields. The simulation results show that the mode-converted waves have continuous bands across the field line consistent with previous numerical studies. These waves also have harmonic structures in frequency domain and are localized in the field-aligned heavy ion density well. Lastly, our results thus emphasize the importance of a field-aligned heavy ion density structure for ultra-low frequency wave propagation, and suggest that IIH waves can be localized in different locations along the field line.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Organization:
- USDOE; Ministry of Education, Science and Technology (Korea, Republic of)
- Grant/Contract Number:
- AC02-09CH11466; NNH09AM53I; NNH09AK63I; NNH11AR07I; NNX14AM27G; NNH14AY20I; ATM0902730; AGS-1203299
- OSTI ID:
- 1254689
- Report Number(s):
- PPPL-5211
- Journal Information:
- Journal of Astronomy and Space Sciences, Vol. 32, Issue 4; Related Information: This work was facilitated by the Max Planck/Princeton Center for Plasma Physics. The work at the Kyung Hee University was also supported by the BK21 Plus Program through the National Research Foundation of Korea, funded by the Ministry of Education, Science and Technology.; ISSN 2093-5587
- Publisher:
- The Korean Space SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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