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| Paper: |
Supersonic Magnetic Flows in the Quiet Sun Observed with SUNRISE/IMaX |
| Volume: |
455, 4th Hinode Science Meeting: Unsolved Problems and Recent Insights |
| Page: |
155 |
| Authors: |
Borrero, J. M.; Pillet, V. M.; Schlichenmaier, R.; Schmidt, W.; Berkefeld, T.; Solanki, S. K.; Bonet, J. A.; Iniesta, J. C. d. T.; Domingo, V.; Barthol, P.; Gandorfer, A. |
| Abstract: |
In this contribution we describe some recent observations of
high-speed magnetized flows in the quiet Sun granulation. These
observations were carried out with the Imaging Magnetograph eXperiment
(IMaX) onboard the stratospheric balloon SUNRISE, and possess
an unprecedented spatial resolution and temporal cadence. These flows
were identified as highly shifted circular polarization (Stokes V)
signals. We estimate the LOS velocity responsible for these shifts to
be larger than 6 km s-1, and therefore we refer to them as
supersonic magnetic flows. The average lifetime of the detected
events is 81.3 s and they occupy an average area of about
23 000 km2. Most of the events occur within granular cells and
correspond therefore to upflows. However some others occur in
intergranular lanes or bear no clear relation to the convective
velocity pattern. We analyze a number of representative examples and
discuss them in terms of magnetic loops, reconnection events, and
convective collapse. |
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