Vertical velocity fluctuations in plage-region magnetic points |
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| Authors: | R G Giovanelli N Brown |
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| Institution: | (1) National Measurement Laboratory, CSIRO, 2008 Sydney, Australia |
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| Abstract: | Observations of line-of-sight velocities of gases in magnetic fields in weak plages near disk centre confirm the systematic downward velocity of 0.5 km s–1, and show fluctuations about this mean by a rather uncertain 0.2 km s–1. Some of the fluctuations show a fairly regular period around 5.5 min. |
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