1999 October Filament Observations |
- Small Emerging Bipoles in the Filament Channel
- Rotational Motions in a Qietscent Filament Prior to Eruption:
The images are BBSO data and the vleocity vectors were
determined by the local cross-correlation tracking.
The trasverse speeds of B, C and D are
28, 18, and 11 km/s , respectively.
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Its MPEG movie at the centerline is also available.
- The contrast profiles determined from the Helio Research data
produce the line-of-sight velocities of about -40, -27, and 18 km/s
for B, C and D, respectively (negative sign motin is
away from the observer, i.e. red-shifted).