Solar Physics

, Volume 13, Issue 2, pp 357–371 | Cite as

Radio spectrum of two active regions

Results of the total solar eclipse of Nov. 12, 1966
  • Franca Chiuderi Drago
Article
Revised:

Abstract

The results of the total solar eclipse of November 12, 1966, observed at 8 different wave-lengths between 3 and 21 cm, are studied and the spectrum of two active regions present on the disk is deduced. It is shown that the observed increase of the flux of the most intense source in the range 3–10 cm is due to geometrical effects. Neglecting the influence of the magnetic field, the following quantities are deduced.
  1. (a)

    the mean and central temperature of the coronal condensation.

     
  2. (b)

    the ∫coronaN2dh (N = electron density).

     

Both these quantities are in good agreement with optical observations.

Keywords

Magnetic Field Active Region Central Temperature Solar Eclipse Radio Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© D. Reidel Publishing Company 1970

Authors and Affiliations

  • Franca Chiuderi Drago
    • 1
  1. 1.Institute for Space Studies, Goddard Space Flight Center, NASANew YorkU.S.A.

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