| Autor: |
Dulk, G. A., Sheridan, K. V. |
| Zdroj: |
Solar Physics; May 1974, Vol. 36 Issue: 1 p191-202, 12p |
| Abstrakt: |
Maps of the brightness distribution of the ‘quiet Sun’ at 80 and 160 MHz reveal the presence of features both brighter and darker than average. The ‘dark’ regions are well correlated with dark regions on UV maps; we deduce that they result from ‘coronal holes’. The ‘bright’ regions are associated with quiescent filaments and not plages or bright regions on microwave or UV maps; we deduce that they result from ‘coronal helmets’. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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