Whistler‐Mode Waves in the Density Double Ducts

Key Points

• The aim is to investigate the properties of density double ducts in the equatorial plasmasphere and their effects on whistler-mode waves.
• Utilized data from the NASA Van Allen Probes to identify density duct structures.
• Conducted simulations based on the electron-MHD model to analyze wave propagation.
• Focused on the characteristics of low- and high-density ducts.
• Identified a density double duct structure that traps whistler-mode waves.
• Confirmed that the structure allows for propagation of waves at distinct frequencies.
• Showed that these ducts facilitate efficient confinement of waves along the magnetic field.

Abstract