Heating of ion conics in the cusp/cleft

Technical Report · Sun Jan 01 04:00:00 EST 1989

OSTI ID:5931780

Andre, M; Crew, G B; Peterson, W K; Persoon, A M; Pollock, C J

Ion conic distributions are often observed in the cusp/cleft region of the dayside magnetosphere. We show that these ions can be heated by resonant interactions with broadband low-frequency (near the ion gyrofrequency) waves. Data from one cusp/cleft crossing of the polar orbiting DE-1 satellite is studied in detail. Observed cool 0+ distributions and observed wave intensities are used as input to a Monte Carlo simulations. The theoretically obtained hot 0+ distributions are in good agreement with the corresponding observed distributions. This resonant heating by broadband low-frequency waves is important for the outflow of ionospheric ions into the magnetosphere.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (USA)
• OSTI ID: 5931780
• Report Number(s): AD-A-228767/0/XAB; CNN: F49620-86-C-0128
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGED PARTICLES
DISTRIBUTION
DISTURBANCES
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ELECTROMAGNETIC RADIATION
ELEMENTS
HEATING
INTERACTIONS
ION DRIFT
IONIC COMPOSITION
IONOSPHERE
IONS
MASS TRANSFER
MONTE CARLO METHOD
NONMETALS
OXYGEN
OXYGEN IONS
PLANETARY IONOSPHERES
POLAR CUSP
RADIATIONS
RADIOWAVE RADIATION
RESONANCE
SATELLITES
SIMULATION