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An empirical method to correct the saturation seen in the SOHO/MDI magnetograms
Liu, Yang; Zhao, Yong-Heng; Zhendong Gao, George
The magnetic field of the umbrae is sometimes found to be saturated in the magnetograms taken by the Michelson Doppler Imager (MDI) onboard the Solar and Heliospheric Observatory (SOHO). It is suggested that the combination of the low intensity of sunspot umbrae and the limitation of the 15-bit onboard numerical data acquisition leads to this satu…
Associations of decimetric type III bursts with coronal mass ejections and Hα flares
Lin, Jun; Ma, Yuan; Wang, De-Yu +2 more
We present a statistical study of decimetric type III radio bursts, coronal mass ejections (CMEs), and Hα flares observed in the period from July 2000 to March 2005. In total, we investigated 395 decimetric type III radio burst events, 21% of which showed apparent correlation to CMEs that were associated with Hα flares. We noticed that the Hα flar…