Ion–Cyclotron Resonance Frequency Interval Dependence on the O VI Ion Number Density in the North Polar Coronal Hole 1.5𝑅–3𝑅 Region

Journal of astrophysics and astronomy

Özgür Gültekin1¹  Emine Rızaoǧlu¹  K. Gediz Akdeniz¹ 

[1] Department of Physics, Istanbul University, Vezneciler, Istanbul 34134, Turkey$$

关键词: Solar corona;    ion;    cyclotron waves;    coronal heating;    Vlasov equation.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown