Alfvénn.

1956 Proc. Royal Soc. 1955–6 A. 233 359 The first p-mode is an Alfvén wave propagating with Alfvén's phase velocity.

1978 Nature 26 Oct. 725/2 Accreting matter can pile up at the magnetopause (which in the case of a pulsar would be made up of very low frequency electromagnetic Alfvén waves).

1988 Physics Bull. Feb. 70/3 The basic hydromagnetic signal is the Alfven wave, analogous to a wave on a taut string.

2005 Science 7 Jan. 79/3 The twist propagates out along the magnetic field lines as a torsional Alfvén wave, extracting the rotational energy of the black hole and driving an outflow.

1957 Proc. IRE 45 147/1 The speed of propagation of these waves is given by the Alfvén speed v_A = (^H²/ _4πρ)^1/2.

1988 Physics Bull. Feb. 66/2 A curved magnetic field will tend to eject plasma at a speed..known as the Alfven speed.

2006 Science 6 Oct. 108/1 The highest velocities—nearly the Alfvén speed—are achieved near the foot points of the loops to form shock fronts on the disk surface.

1957 Astrophysical Jrnl. 126 183 Because of the high Alfvén velocity, the magnetic field in the looped prominence..rapidly reproduces the changes in the sunspot configuration in the photosphere.

1989 M. Longair in P. Davies New Physics vi. 150/1 The bulk streaming velocity of the relativistic gas is restricted to roughly the sound speed in the magnetoplasma, which is the Alfven velocity.

2007 N. Meyer-Vernet Basics of Solar Wind iv. 171 A timescale whose order of magnitude may be as small as a few transit times L/V_A (L being a typical size and V_A the Alfvén velocity).