In plasma physics, an Alfvén wave, named after Hannes Alfvén, is a type of plasma wave in which ions oscillate in response to a restoring force provided...
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isotropically with the Alfvén speed, ω2 f = k2v2 A. In this limit, the fast mode is sometimes referred to as a compressional Alfvén wave. When the wavevector...
14 KB (2,191 words) - 07:27, 22 June 2024
The writer was Inger Alfvén and is well known for her work in Sweden. The composer Hugo Alfvén was Hannes Alfvén's uncle. Alfvén studied the history of...
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Stellar corona (section Alfvén surface)
coronal holes. The Alfvén surface is the boundary separating the corona from the solar wind defined as where the coronal plasma's Alfvén speed and the large-scale...
62 KB (7,677 words) - 17:36, 18 October 2024
field equation Alfvén wave, in plasma physics Atmospheric wave, a periodic disturbance in the fields of atmospheric variables Fir wave, a forest configuration...
61 KB (7,836 words) - 18:13, 21 September 2024
Magnetohydrodynamics (redirect from MHD wave)
what are now referred to as Alfvén waves. Alfvén initially referred to these waves as "electromagnetic–hydrodynamic waves"; however, in a later paper...
43 KB (5,251 words) - 16:31, 7 August 2024
{\displaystyle v_{s}} - plasma "sound" speed, v A {\displaystyle v_{A}} - plasma Alfvén speed (The subscript 0 denotes the static part of the electric or magnetic...
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Triepcke Krøyer Alfvén (1867–1940), commonly known as Marie Krøyer, Danish painter, wife of Hugo Alfvén wave, a type of magnetohydrodynamic wave, named after...
544 bytes (96 words) - 10:41, 24 August 2021
are equal. It is named after Hannes Alfvén, and is also called Alfvén critical surface, Alfvén point, or Alfvén radius. In 2018, the Parker Solar Probe...
14 KB (1,483 words) - 20:13, 8 September 2024
magnetic Reynolds numbers. It is named after Hannes Alfvén, who put the idea forward in 1943. Alfvén's theorem implies that the magnetic topology of a fluid...
19 KB (2,669 words) - 22:39, 9 August 2024