Spectropolarimetric Evidence for a Siphon Flow along an Emerging Magnetic Flux Tube
We study the dynamics and topology of an emerging magnetic flux concentration using high spatial resolution spectropolarimetric data acquired with the Imaging Magnetograph eXperiment on board the sunrise balloon-borne solar observatory. We obtain the full vector magnetic field and the line of sight...
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| Veröffentlicht in: | The Astrophysical journal. Supplement series 2017-03, Vol.229 (1), p.15-15 |
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| creator | Requerey, Iker S. Cobo, B. Ruiz Iniesta, J. C. Del Toro Suárez, D. Orozco Rodríguez, J. Blanco Solanki, S. K. Barthol, P. Gandorfer, A. Gizon, L. Hirzberger, J. Riethmüller, T. L. Noort, M. van Schmidt, W. Pillet, V. Martínez Knölker, M. |
| description | We study the dynamics and topology of an emerging magnetic flux concentration using high spatial resolution spectropolarimetric data acquired with the Imaging Magnetograph eXperiment on board the sunrise balloon-borne solar observatory. We obtain the full vector magnetic field and the line of sight (LOS) velocity through inversions of the Fe i line at 525.02 nm with the SPINOR code. The derived vector magnetic field is used to trace magnetic field lines. Two magnetic flux concentrations with different polarities and LOS velocities are found to be connected by a group of arch-shaped magnetic field lines. The positive polarity footpoint is weaker (1100 G) and displays an upflow, while the negative polarity footpoint is stronger (2200 G) and shows a downflow. This configuration is naturally interpreted as a siphon flow along an arched magnetic flux tube. |
| doi_str_mv | 10.3847/1538-4365/229/1/15 |
| format | Article |
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Ruiz ; Iniesta, J. C. Del Toro ; Suárez, D. Orozco ; Rodríguez, J. Blanco ; Solanki, S. K. ; Barthol, P. ; Gandorfer, A. ; Gizon, L. ; Hirzberger, J. ; Riethmüller, T. L. ; Noort, M. van ; Schmidt, W. ; Pillet, V. Martínez ; Knölker, M.</creator><creatorcontrib>Requerey, Iker S. ; Cobo, B. Ruiz ; Iniesta, J. C. Del Toro ; Suárez, D. Orozco ; Rodríguez, J. Blanco ; Solanki, S. K. ; Barthol, P. ; Gandorfer, A. ; Gizon, L. ; Hirzberger, J. ; Riethmüller, T. L. ; Noort, M. van ; Schmidt, W. ; Pillet, V. Martínez ; Knölker, M.</creatorcontrib><description>We study the dynamics and topology of an emerging magnetic flux concentration using high spatial resolution spectropolarimetric data acquired with the Imaging Magnetograph eXperiment on board the sunrise balloon-borne solar observatory. We obtain the full vector magnetic field and the line of sight (LOS) velocity through inversions of the Fe i line at 525.02 nm with the SPINOR code. The derived vector magnetic field is used to trace magnetic field lines. Two magnetic flux concentrations with different polarities and LOS velocities are found to be connected by a group of arch-shaped magnetic field lines. The positive polarity footpoint is weaker (1100 G) and displays an upflow, while the negative polarity footpoint is stronger (2200 G) and shows a downflow. 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Ruiz</creatorcontrib><creatorcontrib>Iniesta, J. C. Del Toro</creatorcontrib><creatorcontrib>Suárez, D. Orozco</creatorcontrib><creatorcontrib>Rodríguez, J. Blanco</creatorcontrib><creatorcontrib>Solanki, S. K.</creatorcontrib><creatorcontrib>Barthol, P.</creatorcontrib><creatorcontrib>Gandorfer, A.</creatorcontrib><creatorcontrib>Gizon, L.</creatorcontrib><creatorcontrib>Hirzberger, J.</creatorcontrib><creatorcontrib>Riethmüller, T. L.</creatorcontrib><creatorcontrib>Noort, M. van</creatorcontrib><creatorcontrib>Schmidt, W.</creatorcontrib><creatorcontrib>Pillet, V. Martínez</creatorcontrib><creatorcontrib>Knölker, M.</creatorcontrib><title>Spectropolarimetric Evidence for a Siphon Flow along an Emerging Magnetic Flux Tube</title><title>The Astrophysical journal. Supplement series</title><addtitle>APJS</addtitle><addtitle>Astrophys. J. Suppl</addtitle><description>We study the dynamics and topology of an emerging magnetic flux concentration using high spatial resolution spectropolarimetric data acquired with the Imaging Magnetograph eXperiment on board the sunrise balloon-borne solar observatory. We obtain the full vector magnetic field and the line of sight (LOS) velocity through inversions of the Fe i line at 525.02 nm with the SPINOR code. The derived vector magnetic field is used to trace magnetic field lines. Two magnetic flux concentrations with different polarities and LOS velocities are found to be connected by a group of arch-shaped magnetic field lines. The positive polarity footpoint is weaker (1100 G) and displays an upflow, while the negative polarity footpoint is stronger (2200 G) and shows a downflow. 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| subjects | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY BALLOONS CONCENTRATION RATIO Imaging Inversions IRON IONS Line of sight MAGNETIC FIELDS MAGNETIC FLUX methods: observational PHOTOSPHERE POLARIMETRY Polarity S CODES Siphons SOLAR FLARES SPATIAL RESOLUTION SPINORS SUN Sun: magnetic fields Sun: photosphere techniques: polarimetric TOPOLOGY Tubes VELOCITY |
| title | Spectropolarimetric Evidence for a Siphon Flow along an Emerging Magnetic Flux Tube |
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