Abstract
The association of Lomnický Štít data of coronal green line irradiance (CI) to photospheric magnetic activity is studied for the years 1975–1994 using the Carrington rotation averaged photospheric magnetic flux data. It is found that the CI correlates well with photospheric magnetic flux of active regions and the total disk-integrated magnetic flux on longer time scales (11-year solar cycle) and fails (about 50% of the time) to show a strong dependence on shorter time scales. A comparison of the association of CI and of the 10.7 cm radio flux with the photospheric magnetic flux data indicated that the CI might basically represent the background coronal irradiance.
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Ramesh, K. 5303 Å Coronal Irradiance and Its Relation to the Photospheric Magnetic Activity. Solar Physics 183, 295–303 (1998). https://doi.org/10.1023/A:1005069100527
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DOI: https://doi.org/10.1023/A:1005069100527