Coordinated UVCS/LASCO/EIT Observations of a High Latitude CME

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7513 Coronal Mass Ejections

Scientific paper

We present here the results of our coordinated UVCS/LASCO/EIT observations of a CME on 2000 March 5. The northern polar region of the Sun at a position angle 270 degrees was monitored with UVCS at 2 solar radii for about 8 hours. During that time interval a spectacular CME developed in the northern hemisphere. This event was also detected and monitored with LASCO C2 and C3 and the EIT for several hours. We compare the edge-enhanced LASCO and EIT images of this event with the increased intensities of the H I Lyman-alpha spectral line and the line pair O VI 1031.91 A and 1037.61 A seen in the UVCS observations. LASCO and EIT images are essential in providing the larger scale context for this event and for correlating the small-scale sub-structure observed in white light with the the plasma morphology as observed with the UVCS.

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