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Observation by Ulysses of hot (∼270 keV) coronal particles at 32° south heliolatitude and 4.6 AU

Simnett, G. M.; Pick, M.; Anderson, K. A. +11 more

An unusual event of streaming 60 keV-2 MeV ions (with energy spectrum peaked ∼270 keV) and of 42-315 keV electrons occurred during the passage of a coronal mass ejection (CME) over the Ulysses spacecraft June 9-13, 1993, located at helioradius 4.6 AU and heliolatitude 32° south. The topology of the interplanetary magnetic field (IMF) within the CM…

On the cross-field diffusion of ions in one- and two-dimensional hybrid simulations of collisionless shocks

Giacalone, Joe

It can be demonstrated analytically that under certain geometries used in numerical simulations of collisionless shocks in which there is at least one ignorable spatial coordinate, the transport of particles across the magnetic field is essentially zero. This notion is tested using one- and two-dimensional hybrid simulations (kinetic ions/ fluid e…

Null fields in the outer Jovian magnetosphere: Ulysses observations

Dougherty, M. K.; Balogh, A.; Smith, E. J. +3 more

This paper reports on a magnetic field phenomenon, hereafter referred to as null fields, which were discovered during the inbound pass of the recent flyby of Jupiter by the Ulysses spacecraft. These null fields which were observed in the outer dayside magnetosphere are characterised by brief but sharp decreases of the field magnitude to values les…

Dust streams from comet Shoemaker-Levy 9?

Hamilton, D. P.; Horanyi, M.; Polanskey, C. +3 more

In 1991 and 1992, the dust detector onboard the Ulysses spacecraft detected several dust streams apparently originating from the jovian system. The timing and measured speeds of the final two dust streams are compatible with dust from comet Shoemaker-Levy 9's (SL9) disruption in 1992. Our further investigations of stream characteristics and dust a…

Evidence that Jupiter is not the source of the 2-3 kHz heliospheric radiation

Gurnett, D. A.; Kurth, W. S.

It has been suggested that continuum radiation from Jupiter could provide the source for the 2- to 3-kHz radio emissions detected by Voyagers 1 and 2 in the outer heliosphere. By a fortuitous set of circumstances the Ulysses flyby of Jupiter in early 1992 provided an opportunity to compare the intensity of a strong, new heliospheric radio emission…