flows in active regions inferred from the time-distance and the dave4vm
Post on 21-Dec-2015
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Flows in Active Regions Inferred from the Time-distance and the DAVE4VM
Case 1: AR11084
Flows in the AR11084 at 04:00 July 2 2010 on the photosphere from DAVE4VM (left) and at -0.5 Mm from Time-Distance (right).
Height
Photosphere
NOT SCALED
Rempel’s numerical simulation
Rempel’s numerical simulation
Case 2: AR11158
Shear motion
Spinning
Flow of AR11158 at 18:00 UT Feb. 14 2011 from DAVE4VM (top) and Time-Distance (bottom).
Shear motion
Spinning
AR11158 at 18:00 Feb. 14 2011.
Summary
• For stable, mature sunspots, the flow in the sunspots is pretty consistent in the range from -0.5 Mm to the photosphere;
• Except for the flow in the sunspots that seems to switch from inflow to outflow earlier at the photosphere than at -0.5 Mm.
• For emerging, complex sunspots, the outflow surrounding the sunspots are consistent within -0.5 Mm and the photosphere; part of the shear motion along the magnetic neutral lines is consistent within that range;
• Inflow in the sunspots and rotation motion seem not to be agreeable at -0.5 Mm and in the photosphere.
Vertical velocity at the photosphere (left) from DAVE4VM and -0.5 Mm (right) from the time-distance.
AR11158 at 02:00 Feb. 15 2011.
AR11158 at 2011 Feb. 15 02:00UT