MHD PARAMETERS
ALFVÉN SPEED
v_A = B/√(μ₀ρ): 1.000
Wave period: 1.000 s
Wavelength: 1.000
Mode: Shear Alfvén
v_A = B / √(μ₀ρ)
ω = k·v_A (dispersion)
WAVE PACKET
ω vs k (linear Alfvén dispersion)
ABOUT
Alfvén waves are transverse MHD waves propagating along magnetic field lines. In the solar corona, they carry enough energy to heat the corona to millions of Kelvin — the coronal heating problem. Discovered by Hannes Alfvén (Nobel 1970).