Location of Compact Microwave Sources with Respect to Concentrations of Magnetic Field in Active Solar Regions

  • V. Gaizauskas
  • K. F. Tapping
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 91)


The slowly varying (S-) component of solar microwave emission originates in the vicinity of sunspots and chromospheric plages. A significant portion of this component is produced by bright, compact sources which are much smaller than the active regions in which they occur (Lang, 1974; Kundu et al., 1977; Donati Falchi et al., 1978; Lang and Willson, 1979). The combined radio-optical investigation reported here was initiated to explore, in regions at various stages of evolution, both the variability of compact microwave sources and their association with specific optical features.


Solar Phys Brightness Temperature Microwave Emission Active Solar Region Compact Source 
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  1. Donati Falchi, A., Felli, M., Pampaloni, P., and Tofani, G., 1978, Solar Phys. 56, 335.ADSGoogle Scholar
  2. Kundu, M.R., Alissandrakis, C.E., Bregman, J.D., and Hin, A.C., 1977, Astrophysics J. 213, 278.CrossRefADSGoogle Scholar
  3. Lang, K.R., 1974, Solar Phys. 36, 351.CrossRefADSGoogle Scholar
  4. Lang, K.R., and Willson, R.F., 1979, Nature 278, 24.CrossRefADSGoogle Scholar

Copyright information

© IAU 1980

Authors and Affiliations

  • V. Gaizauskas
    • 1
  • K. F. Tapping
    • 1
  1. 1.Herzberg Institute of AstrophysicsOttawaCanada

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