Evidence for ion energy dispersion in the polar cusp related to a northward-directed IMF

Conference · Tue Jan 01 04:00:00 EST 1985 · Adv. Space Res.; (United States)

OSTI ID:6019333

Bosqued, J M; Sauvaud, J A; Reme, H; Crasnier, J; Galperin, IU I

Data from the particle experiment aboard the AUREOL-3 polar satellite show that about 30 percent of the summer cusp crossings are characterized by a clear latitudinal energy dispersion of the solar wind ions. This energy-latitude correlation is observed at very high latitudes, 80-85 deg, near the polar boundary of the cusp, as an increase of the ion average energy with latitude. These structures have a typical latitude extent of 1-2 deg at ionospheric heights and correspond to a northward-directed IMF. These observations are consistent with a sunward convection of the foot of the magnetic flux tubes recently merged with a northward directed interplanetary magnetic field. 16 references.

• Research Organization: Centre d'Etude Spatiale des Rayonnements, Toulouse, France; Institut Kosmicheskikh Issledovanii, Moscow, USSR
• OSTI ID: 6019333
• Report Number(s): CONF-8406167-
• Conference Information: Journal Name: Adv. Space Res.; (United States) Journal Volume: 5:4
• Country of Publication: United States
• Language: English

Related Subjects

640203* -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGED-PARTICLE PRECIPITATION
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ENERGY SPECTRA
GEOMAGNETIC FIELD
INTERACTIONS
INTERPLANETARY MAGNETIC FIELDS
ION TEMPERATURE
MAGNETIC FIELDS
MAGNETIC FLUX
POLAR CUSP
SOLAR ACTIVITY
SOLAR WIND
SPECTRA