Observations of stationary radio sources: Coronal polar plumes?

Details Observations of stationary radio sources: Coronal polar plumes? Observations of stationary radio sources: Coronal polar plumes?

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.348..113g&link_type=abstract

In ESA, Proceedings of the First SOHO Workshop: Coronal Streamers, Coronal Loops, and Coronal and Solar Wind Composition p 113-1

Astronomy and Astrophysics

Astronomy

6

Plumes, Radio Observation, Radio Sources (Astronomy), Solar Corona, Solar Radiation, Brightness, Polar Regions, Space Observations (From Earth), Sun, Thermal Emission

Scientific paper

Observations and preliminary results of polar radio sources which are often brighter than streamers are presented. The results are preliminary and an analysis is needed using a larger data set to firmly establish the properties such as time variability of these sources. Data which are not corrected for ionospheric refraction are used, thus the determination of rotational characteristics is not accurate. Thermal and/or weak nonthermal emission from polar plumes may be responsible for the polar radio sources. However, nonthermal process may be necessary to explain time variability.

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