Journal article
Observations of whistler mode waves with nonlinear parallel electric fields near the dayside magnetic reconnection separatrix by the Magnetospheric Multiscale mission
Geophysical research letters, Vol.43(12), pp.5909-5917
2016
DOI: 10.1002/2016GL069473
Abstract
We show observations from the Magnetospheric Multiscale (MMS) mission of whistler mode waves in the Earth's low-latitude boundary layer (LLBL) during a magnetic reconnection event. The waves propagated obliquely to the magnetic field toward the X line and were confined to the edge of a southward jet in the LLBL. Bipolar parallel electric fields interpreted as electrostatic solitary waves (ESW) are observed intermittently and appear to be in phase with the parallel component of the whistler oscillations. The polarity of the ESWs suggests that if they propagate with the waves, they are electron enhancements as opposed to electron holes. The reduced electron distribution shows a shoulder in the distribution for parallel velocities between 17,000 and 22,000 km/s, which persisted during the interval when ESWs were observed, and is near the phase velocity of the whistlers. This shoulder can drive Langmuir waves, which were observed in the high-frequency parallel electric field data.
Details
- Title: Subtitle
- Observations of whistler mode waves with nonlinear parallel electric fields near the dayside magnetic reconnection separatrix by the Magnetospheric Multiscale mission
- Creators
- F. D Wilder - University of Colorado BoulderA. N Jaynes - University of Colorado BoulderR. E Ergun - University of Colorado BoulderJ. C Holmes - University of Colorado BoulderK. A Goodrich - University of Colorado BoulderM. V Goldman - University of Colorado BoulderD. L Newman - University of Colorado BoulderD. M Malaspina - University of Colorado BoulderS. J Schwartz - Imperial College LondonK. J Trattner - University of Colorado BoulderJ. L Burch - Southwest Research InstituteM. R Argall - University of New HampshireR. B Torbert - University of New HampshireP.-A Lindqvist - KTH Royal Institute of TechnologyG Marklund - KTH Royal Institute of TechnologyOlivier Le Contel - École PolytechniqueLaurent Mirioni - École PolytechniqueY. V Khotyaintsev - Swedish Institute of Space PhysicsR. J Strangeway - University of California, Los AngelesC. J Pollock - University of California, Los AngelesB. L Giles - University of California, Los AngelesC. T Russell - University of California, Los AngelesF Plaschke - Austrian Academy of SciencesW Magnes - Austrian Academy of SciencesS Eriksson - University of Colorado BoulderJ. E Stawarz - University of Colorado BoulderA. P Sturner - University of Colorado Boulder
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.43(12), pp.5909-5917
- Publisher
- American Geophysical Union
- DOI
- 10.1002/2016GL069473
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Grant note
- DOI: 10.13039/100000104, name: NASA; DOI: 10.13039/501100002830, name: CNES; name: CNRS-INSIS; name: CNRS-INSU
- Language
- English
- Date published
- 2016
- Academic Unit
- Physics and Astronomy; University College Courses
- Record Identifier
- 9984199714002771
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