ON ELECTRON-SCALE WHISTLER TURBULENCE IN THE SOLAR WIND

ON ELECTRON-SCALE WHISTLER TURBULENCE IN THE SOLAR WIND

ABSTRACT For the first time, the dispersion relation for turbulence magnetic field fluctuations in the solar wind is determined directly on small scales of the order of the electron inertial length, using four-point magnetometer observations from the Magnetospheric Multiscale mission. The data are a...

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Veröffentlicht in:Astrophysical journal. Letters 2016-08, Vol.827 (1), p.L8-L8
Hauptverfasser: Narita, Y., Nakamura, R., Baumjohann, W., Glassmeier, K.-H., Motschmann, U., Giles, B., Magnes, W., Fischer, D., Torbert, R. B., Russell, C. T., Strangeway, R. J., Burch, J. L., Nariyuki, Y., Saito, S., Gary, S. P.
Format: Artikel
Sprache:eng
Schlagworte:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
Dispersion (wave)
DISPERSION RELATIONS
DISPERSIONS
ELECTRONS
FLUCTUATIONS
MAGNETIC FIELDS
MAGNETOMETERS
PLASMA
Plasma Physics
plasmas
RESOLUTION
Small scale
SOLAR WIND
TELESCOPES
TURBULENCE
Turbulent flow
Wave propagation
WHISTLER INSTABILITY
WHISTLERS
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Zusammenfassung:ABSTRACT For the first time, the dispersion relation for turbulence magnetic field fluctuations in the solar wind is determined directly on small scales of the order of the electron inertial length, using four-point magnetometer observations from the Magnetospheric Multiscale mission. The data are analyzed using the high-resolution adaptive wave telescope technique. Small-scale solar wind turbulence is primarily composed of highly obliquely propagating waves, with dispersion consistent with that of the whistler mode.
ISSN:2041-8205
2041-8213
DOI:10.3847/2041-8205/827/1/L8