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...
38 KB (4,655 words) - 04:35, 11 November 2024
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...
29 KB (2,554 words) - 02:47, 22 September 2024
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 (7,802 words) - 10:47, 21 November 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
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
This is a list of wave topics. Contents: Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z...
10 KB (37 words) - 10:52, 7 November 2023
{\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...
6 KB (489 words) - 15:58, 19 January 2024
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
kinetic Alfvén wave. Hasegawa and Chen introduced the concept of the kinetic Alfven wave to illustrate the microscopic process of the Alfven wave heating...
28 KB (3,184 words) - 14:33, 20 October 2024
events—nanoflares. Currently, it is unclear whether waves are an efficient heating mechanism. All waves except Alfvén waves have been found to dissipate or refract...
165 KB (18,112 words) - 01:49, 14 November 2024
the relative importance depending on parameters. Waves in plasmas Sound Alfvén wave Magnetosonic wave Various patents and articles related to fusion, IEC...
10 KB (2,461 words) - 00:55, 27 October 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
so-called Alfvén wave, a physical principle within magnetohydrodynamics that was described first in 1942 by the later Nobel Prize winner Hannes Alfvén and which...
8 KB (1,128 words) - 10:59, 3 May 2023
Solar wind (section Alfvén surface)
expeditions. 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...
55 KB (6,597 words) - 19:10, 21 October 2024
{R}{c_{\mathrm {s} }}},} where cs is the speed of the ion acoustic wave (or the Alfvén wave, if the magnetic pressure is higher than the plasma pressure)....
45 KB (7,565 words) - 11:49, 29 October 2024
reconnection involves plasma flows at a substantial fraction of the Alfvén wave speed, which is the fundamental speed for mechanical information flow...
41 KB (5,475 words) - 13:18, 4 October 2024
Marie Krøyer (redirect from Marie Triepcke Kroyer Alfvén)
composer Hugo Alfvén who had also been taken by her beauty. The couple had a child, Marie divorced Krøyer and moved to Sweden with Alfvén. They married...
23 KB (2,872 words) - 12:18, 9 November 2024
Alfvén waves. At small wavelengths transverse to the background magnetic field (comparable to the electron inertial length or ion gyroradius), Alfvén...
117 KB (13,050 words) - 08:59, 20 November 2024
timescale of an Alfvén wave crossing to the timescale of resistive diffusion. It is a special case of the magnetic Reynolds number when the Alfvén velocity is...
1 KB (184 words) - 17:51, 1 June 2023
micrometres. Importantly, it also implies that the Alfvén wavelength is a few meters, and in fact shear Alfvén waves are routinely observed in the LAPD. This is...
12 KB (1,665 words) - 05:07, 8 May 2024
Thomas, T; Pfrommer, C (25 January 2019). "Cosmic-ray hydrodynamics: Alfvén-wave regulated transport of cosmic rays". Monthly Notices of the Royal Astronomical...
45 KB (5,574 words) - 17:14, 11 November 2024
stress tensor Electromagnetically induced acoustic noise and vibration Alfvén wave Bellan, Paul Murray (2006). Fundamentals of Plasma Physics. Cambridge:...
6 KB (844 words) - 22:10, 18 October 2024
provides wave modes such as Alfvén waves which are often faster than pure sound waves: if turbulent speeds are supersonic but below the Alfvén wave speed...
60 KB (7,343 words) - 22:10, 1 August 2024
heating via resonant absorption within Alfvén wave continuous spectrum. They discovered the Kinetic Alfvén wave, which resolves the logarithmic singularity...
15 KB (1,475 words) - 23:57, 17 November 2024
Retrieved 6 November 2011. Zakharov, V. E. (1972), "Collapse of Langmuir waves", Soviet Journal of Experimental and Theoretical Physics, 35: 908–914, Bibcode:1972JETP...
24 KB (195 words) - 21:21, 31 October 2024
is thought that the active magnetic fields and strong solar wind of Alfvén waves of T Tauri stars are one means by which angular momentum gets transferred...
9 KB (928 words) - 20:03, 20 March 2024
This is a list of waves named after people (eponymous waves). Eponym List of eponymous laws Waves Scientific phenomena named after people Truesdell, C...
2 KB (48 words) - 17:35, 28 May 2023
electric current flowing through a resistance (ohmic). Spitzer resistivity Alfvén wave Tokamak Nunes, I (2015). "Plasma Confinement at JET". Plasma Physics...
2 KB (151 words) - 09:54, 31 May 2023