Journal
ASTROPHYSICAL JOURNAL
Volume 911, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.3847/1538-4357/abed52
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Funding
- NASA [80NSSC19K1063, 80NSSC18K0646]
- National Science Foundation [2026680]
- Div Atmospheric & Geospace Sciences
- Directorate For Geosciences [2026680] Funding Source: National Science Foundation
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Nonlinear ion-acoustic waves, ion holes, and electron holes have been observed on the Parker Solar Probe at a heliocentric distance of 35 solar radii. These structures contain electric field spikes of several mV m(-1) and are observed inside or at boundaries of switchbacks in the background magnetic field, indicating electrostatic instabilities occurring to thermalize electron and ion beams.
Nonlinear ion-acoustic waves, ion holes, and electron holes have been observed on the Parker Solar Probe at a heliocentric distance of 35 solar radii. These time domain structures contain millisecond duration electric field spikes of several mV m(-1). They are observed inside or at boundaries of switchbacks in the background magnetic field. Their presence in switchbacks indicates that both electron- and ion-streaming electrostatic instabilities occur there to thermalize electron and ion beams.
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