A fundamental model consisting of charged particles moving in free space exposed to alternating and direct current (ACDC) electromagnetic fields is analyzed. Effects of charged particles initial position and initial velocity to cyclotron resonance frequency are observed. Strong effects are observed revealing that effects of electric and magnetic fields on a charged particle in free space varies...

Ion cyclotron resonance is one of the fundamental energy conversion processes through field-particle interaction in collisionless plasmas. However, key evidence for ion (i.e., coherence between electromagnetic fields and phase space density) resulting damping waves (ICWs) has not yet been directly observed. Investigating high-quality measurements plasmas by Magnetospheric Multiscale (MMS) satel...