7 Matching Annotations
  1. Last 7 days
    1. The bottom line is this: the plasma frequency must be much higher than the collision frequency.

      3rd criterion

    1. The gradient of the B-field is perpendicular to the B-field

      did not understand why this is the case

  2. Oct 2024
    1. scalar field fff

      In electrodynamics div E is a scalar product.

      Where E is the electric field which is a vector. And E = nabla • f

      But in the context of electrodynamics, what is our scalar field, f?

    1. that ¨vy=−ω2gvyv¨y=−ωg2vy\ddot{v}_y = -\omega^2_g v_y

      What is the physical significance of \ddot{v}_y

      I can see it looks like \ddot{x} = -\omega^2 x

    1. The temperature and density of particles here are higher than in the solar wind, and the magnetic field is stronger

      Do these high-energy particles emit any radiation intrinsically