Wind-Induced Magnetic Fluctuations

1974 ◽  
pp. 837-842
Author(s):  
C. O. Hines
Keyword(s):  
Magnetic Fluctuations

scholarly journals The STAFF-DWP wave instrument on the DSP equatorial spacecraft: description and first results

2005 ◽  
Vol 23 (8) ◽  
pp. 2785-2801 ◽  
Author(s):  
N. Cornilleau-Wehrlin ◽  
H. St. Alleyne ◽  
K. H. Yearby ◽  
B. de la Porte de Vaux ◽  
A. Meyer ◽  
...  
Keyword(s):  
Electromagnetic Waves ◽  
Broad Band ◽  
Temporal Analysis ◽  
Time Interval ◽  
Magnetic Fluctuations ◽  
Quiet Time ◽  
Waveform Data ◽  
Power Intensity ◽  
First Case ◽  
First Results

Abstract. The STAFF-DWP wave instrument on board the equatorial spacecraft (TC1) of the Double Star Project consists of a combination of 2 instruments which are a heritage of the Cluster mission: the Spatio-Temporal Analysis of Field Fluctuations (STAFF) experiment and the Digital Wave-Processing experiment (DWP). On DSP-TC1 STAFF consists of a three-axis search coil magnetometer, used to measure magnetic fluctuations at frequencies up to 4 kHz and a waveform unit, up to 10 Hz, plus snapshots up to 180 Hz. DWP provides several onboard analysis tools: a complex FFT to fully characterise electromagnetic waves in the frequency range 10 Hz-4 kHz, a particle correlator linked to the PEACE electron experiment, and compression of the STAFF waveform data. The complementary Cluster and TC1 orbits, together with the similarity of the instruments, permits new multi-point studies. The first results show the capabilities of the experiment, with examples in the different regions of the magnetosphere-solar wind system that have been encountered by DSP-TC1 at the beginning of its operational phase. An overview of the different kinds of electromagnetic waves observed on the dayside from perigee to apogee is given, including the different whistler mode waves (hiss, chorus, lion roars) and broad-band ULF emissions. The polarisation and propagation characteristics of intense waves in the vicinity of a bow shock crossing are analysed using the dedicated PRASSADCO tool, giving results compatible with previous studies: the broad-band ULF waves consist of a superimposition of different wave modes, whereas the magnetosheath lion roars are right-handed and propagate close to the magnetic field. An example of a combined Cluster DSP-TC1 magnetopause crossing is given. This first case study shows that the ULF wave power intensity is higher at low latitude (DSP) than at high latitude (Cluster). On the nightside in the tail, a first wave event comparison - in a rather quiet time interval - is shown. It opens the doors to future studies, such as event timing during substorms, to possibly determine their onset location.

Search for Magnetic Fluctuations in YBa 2 Cu 3 O 7

1987 ◽  
Vol 4 (10) ◽  
pp. 1189-1194 ◽  
Author(s):  
T Brückel ◽  
H Capellmann ◽  
W Just ◽  
O Schärpf ◽  
S Kemmler-Sack ◽  
...  
Keyword(s):  
Magnetic Fluctuations

scholarly journals Absence of strong magnetic fluctuations in FeP-based systems LaFePO and Sr2ScO3FeP

2013 ◽  
Vol 25 (42) ◽  
pp. 425701 ◽  
Author(s):  
A E Taylor ◽  
R A Ewings ◽  
T G Perring ◽  
D R Parker ◽  
J Ollivier ◽  
...  
Keyword(s):  
Magnetic Fluctuations

Production of plasma vortices by lower-hybrid waves

1981 ◽  
Vol 26 (2) ◽  
pp. 359-367 ◽  
Author(s):  
M. Y. Yu ◽  
P. K. Shukla ◽  
H. U. Rahman
Keyword(s):  
Plasma Heating ◽  
Finite Amplitude ◽  
Current Drive ◽  
Lower Hybrid ◽  
Magnetic Fluctuations ◽  
Field Diffusion ◽  
Modulational Instabilities ◽  
Hybrid Waves ◽  
Plasma Vortices ◽  
Lower Hybrid Waves

Nonlinear excitation of electrostatic and magnetostatic zero-frequency modes by finite-amplitude lower-hybrid waves is considered. It is found that modulational instabilities can give rise to enhanced plasma vortices. Dispersion relations, as well as analytical expressions for the growth rates, are obtained. The enhanced vortices may cause anomalous cross-field diffusion which can affect plasma confinement in tokamak devices when lower-hybrid waves are used for plasma heating or current drive. We found that magnetic fluctuations associated with the parametrically driven magnetostatic mode are of particular importance in tokamak plasmas.

Enhancement of Pairing Interaction and Magnetic Fluctuations toward a Band Insulator in an Electron-DopedLixZrNClSuperconductor

2009 ◽  
Vol 103 (7) ◽  
Author(s):  
Yuichi Kasahara ◽  
Tsukasa Kishiume ◽  
Takumi Takano ◽  
Katsuki Kobayashi ◽  
Eiichi Matsuoka ◽  
...  
Keyword(s):  
Magnetic Fluctuations ◽  
Pairing Interaction ◽  
Band Insulator
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