Abstract
The frequency intervals in which O VI ions get in resonance with ion–cyclotron waves are calculated using the kinetic model, for the latest six values found in literature on O VI ion number densities in the 1.5R–3R region of the NPCH. It is found that the common resonance interval is 1.5 kHz to 3 kHz. The R-variations of wave numbers necessary for the above calculations are evaluated numerically, solving the cubic dispersion relation with the dielectric response derived from the quasi-linear Vlasov equation for the left-circularly polarized ion-cyclotron waves.
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One of the authors (ÖG) would like to thank Dr E. Rennan Pekünlü and Dr Özgür Gürcan for their valuable remarks.
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Emine Rızaoǧlu is retired from Istanbul University, Turkey
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Gültekin, Ö., Rızaoǧlu, E. & Akdeniz, K.G. Ion–Cyclotron Resonance Frequency Interval Dependence on the O VI Ion Number Density in the North Polar Coronal Hole 1.5R–3R Region. J Astrophys Astron 34, 349–355 (2013). https://doi.org/10.1007/s12036-013-9187-3
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DOI: https://doi.org/10.1007/s12036-013-9187-3