Very low frequency waves stimulated by an electron accelerator in the auroral ionosphere
Conference
·
· Adv. Space Res.; (United States)
OSTI ID:5024234
- Oslo Universitetet, Oslo, Norway
The sounding rocket, Polar 5, carrying a 10 keV electron accelerator in a mother-daughter configuration and other diagnostic instruments, was launched into a slightly disturbed ionosphere with weak auroral activity on February 1, 1976 from Northern Norway to study VLF wave phenomena. The rocket trajectory crossed two auroral regions: one, between 86 and 111 s flight time, and a secondary region between 230 and 330 s. The daughter, carrying the accelerator, was separated axially from the mother in a forward direction at an altitude of 90 km. The VLF experiment, carried by the mother payload, recorded both electromagnetic and electrostatic waves. The receiving antenna was an electric dipole, 0.3 m tip-to-tip, oriented 90 degrees to the rocket spin axis. The onboard particle detector recorded increased electron fluxes in the two auroral regions. A double peaked structure was observed in the fluxes of 4-5 and 12-27 keV electrons within the northern auroral form. The number density of thermal plasma varied during the flight, with maximum density within the main auroral region. To the north of this aurora a slow, steady decrease in the density was observed, with no enhancement in the region of the second aurora.
- OSTI ID:
- 5024234
- Report Number(s):
- CONF-8006190-
- Conference Information:
- Journal Name: Adv. Space Res.; (United States) Journal Volume: 1:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
AURORAE
AURORAL ZONES
DATA
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRON PROBES
EMISSION
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
HOT PLASMA
INFORMATION
IONOSPHERE
IONOSPHERIC STORMS
LONG WAVE RADIATION
NUMERICAL DATA
PLANETARY IONOSPHERES
PLASMA
PLASMA WAVES
PROBES
RADIATIONS
RADIOWAVE RADIATION
ROCKETS
SONIC PROBES
STIMULATED EMISSION
TRAJECTORIES
WAVE PROPAGATION
Ionospheric
& Magetospheric Phenomena
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
AURORAE
AURORAL ZONES
DATA
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRON PROBES
EMISSION
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
HOT PLASMA
INFORMATION
IONOSPHERE
IONOSPHERIC STORMS
LONG WAVE RADIATION
NUMERICAL DATA
PLANETARY IONOSPHERES
PLASMA
PLASMA WAVES
PROBES
RADIATIONS
RADIOWAVE RADIATION
ROCKETS
SONIC PROBES
STIMULATED EMISSION
TRAJECTORIES
WAVE PROPAGATION