Particle signature of magnetic flux transfer events at the magnetopause
Energetic electron (E>20 keV) and ion (E>25 keV) enhancements have been observed using the Isee 1 and 2 spacecraft during magnetic flux transfer events in the dayside magnetosheath just outside the magnetopause. The ions are seen to be streaming along the magnetic field, filling the 90/sup 0/-180/sup 0/ pitch angle region. The electrons are most isotropic and yet exhibit slight anisotropy in the direction opposite to that of the ions. From their intensities and spectra the ions appear to be of magnetospheric origin. With the interpretation of the flux transfer events as 'patchy' interconnection of magnetosheath and magnetospheric field lines, the ions are then seen to be previously trapped magnetospheric particles escaping along freshly opened field lines.
- OSTI ID:
- 6315704
- Journal Information:
- J. Geophys. Res.; (United States), Vol. 86:A3
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magnetopause modeling: flux transfer events and magnetosheath Quasi-trapped distributions
A search for upstream pressure pulses associated with flux transfer events: An AMPTE/ISEE case study