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A coronal hole observed at 10.7 GHz with a large single dish

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Abstract

On July 24, 1973, a coronal hole was observed at 10.69 GHz (2.8 cm) with the Bonn 100-m telescope. The difference of the brightness temperature between outside and inside the hole was about 400 to 500 K. It is shown that this lack of emission can be explained by usually adopted values of the electron density at the bottom of the corona.

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Authors and Affiliations

  1. Max-Plank-Institut für Radioastronomie, Bonn, Germany

    E. Fürst

  2. Radioastronomisches Institut der Universität Bonn, Germany

    W. Hirth

Authors
  1. E. Fürst
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  2. W. Hirth
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Fürst, E., Hirth, W. A coronal hole observed at 10.7 GHz with a large single dish. Sol Phys 42, 157–161 (1975). https://doi.org/10.1007/BF00153292

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  • DOI: https://doi.org/10.1007/BF00153292

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