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Astron. Astrophys. 317, 925-928 (1997)

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5. Conclusions

We deduced our results from a short observational period of only two solar rotations. We analysed a period of low solar activity and stable two sector structure of the solar magnetic field. The correlation between the irradiance measurements, Wolf numbers and sunspot areas are in agreement with preceding investigations and the anticorrelation with the 2800 MHz solar flux is very pronounced.

The most remarkable finding is the anticorrelation between the global magnetic field and solar irradiance. The similarity between the curves of photospheric and global fields and DIFOS measurements may be a special result, only valid in times of low solar activity. We believe it to be the result of the global organization of fields in the Sun. This is especially pronounced during the declining phase of the cycle, when the global field controls the behaviour of all other solar activity indices.

Further steps are planned. We hope especially for a successful launching of the next CORONAS satellite carrying among others including an improved DIFOS photometer. Longer observational periods are very necessary for proving our results.

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© European Southern Observatory (ESO) 1997

Online publication: July 8, 1998