Determining the Solar Wind Speed above Active Regions Using Remote Radio-Wave Observations

A new technique has made it possible to measure the velocity of portions of the solar wind during its flow outward from the sun. This analysis utilizes spacecraft (ISEE-3) observations of radio emission generated in regions of the solar wind associated with solar active regions. By tracking the sour...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1983-11, Vol.222 (4623), p.506-508
Main Authors: J.-L. Bougeret, Fainberg, J., Stone, R. G.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
Earth, ocean, space
Electrons
Exact sciences and technology
Interplanetary space
Measurement
Radio observatories
Radio sources
Radio waves
Solar observatories
Solar Physics
Solar system
Solar wind
Spacecraft
Speed
Sun
Sunspots
Wind velocity
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Summary:A new technique has made it possible to measure the velocity of portions of the solar wind during its flow outward from the sun. This analysis utilizes spacecraft (ISEE-3) observations of radio emission generated in regions of the solar wind associated with solar active regions. By tracking the source of these radio waves over periods of days, it is possible to measure the motion of the emission regions. Evidence of solar wind acceleration during this outward flow, consistent with theoretical models, has also been obtained.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.222.4623.506