Supersonic Downflows in the Photosphere Discovered in Sunspot Moat Regions
This paper reports on our new findings from the International Time Program observations at the Canaries islands, Spain, in July 2005. We have found small-scale photospheric events with extremely red-shifted Stokes V signals in sunspot moat regions. A preliminary estimate of the physical conditions for an observed Stokes V profile indicates the
Shimizu, T. et al.
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2007