Articles | Volume 43, issue 2
https://doi.org/10.5194/angeo-43-535-2025
https://doi.org/10.5194/angeo-43-535-2025
Regular paper
 | 
22 Sep 2025
Regular paper |  | 22 Sep 2025

Study of temperature anisotropy and kappa distribution impacts on EMIC waves in multi-species magnetized plasma

Rahul Bhaisaniya and Ganpat Ahirwar

Cited articles

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Cattaert, T., Hellberg, M. A., and Mace, R. L.: Oblique propagation of electromagnetic waves in a kappa-Maxwellian plasma, Phys. Plasmas, 14, 082111, https://doi.org/10.1063/1.2766647, 2007. 
Chen, L. and Hasegawa, A.: A theory of long-period magnetic pulsations: 1. Steady state excitation of field line resonance, J. Geophys. Res. Space Phys., 79, 1024–1032, https://doi.org/10.1029/JA079i007p01024, 1974. 
Cornwall, J. M.: Cyclotron instabilities and electromagnetic emission in the ultra-low frequency and very low frequency ranges, J. Geophys. Res., 70, 61–69, https://doi.org/10.1029/JZ070i001p00061, 1965. 
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Short summary
This study explores the influence of temperature anisotropy and kappa-distributed suprathermal particles on electromagnetic ion cyclotron (EMIC) wave propagation in a multi-ion magnetospheric plasma. Results show that higher anisotropy enhances wave growth, while an increasing kappa value suppresses it, leading to thermalization. These findings have key implications for radiation belt electron loss and space weather modeling. Future work should incorporate nonlinear effects and observational validation.
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