Two-dimensional power spectrum of small-scale magnetic fields on the quiet sun.
Abstract
Based on magnetograms of September 5, 1988, the authors constructed a 2-D power spectrum for small-scale magnetic fields in a solar quiet region. The preliminary results are summarized as follows. (1) The solar magnetic fields in quiet regions are not only concentrated in discrete flux patches, but also distributed over discrete spatial periods. (2) The most obvious periods of small-scale fields are of supergranule scales. There are some peaks in the power spectrum corresponding to the spatial periods in mesogranule scales, and to the scales in between meso- and supergranules.
- Publication:
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Acta Astrophysica Sinica
- Pub Date:
- January 1990
- Bibcode:
- 1990AcApS..10...96W
- Keywords:
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- Solar Magnetic Fields: Quiet Sun;
- Solar Granulation: Magnetic Fields