Mapping the Magnetic Field of Flare Coronal Loops
Here, we report on the unique observation of flaring coronal loops at the solar limb using high-resolution imaging spectropolarimetry from the Swedish 1 m Solar Telescope. The vantage position, orientation, and nature of the chromospheric material that filled the flare loops allowed us to determine...
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| Veröffentlicht in: | The Astrophysical journal 2019-04, Vol.874 (2), p.126 |
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| creator | Kuridze, D. Mathioudakis, M. Morgan, H. Oliver, R. Kleint, L. Zaqarashvili, T. V. Reid, A. Koza, J. Löfdahl, M. G. Hillberg, T. Kukhianidze, V. Hanslmeier, A. |
| description | Here, we report on the unique observation of flaring coronal loops at the solar limb using high-resolution imaging spectropolarimetry from the Swedish 1 m Solar Telescope. The vantage position, orientation, and nature of the chromospheric material that filled the flare loops allowed us to determine their magnetic field with unprecedented accuracy using the weak-field approximation method. Our analysis reveals coronal magnetic field strengths as high as 350 G at heights up to 25 Mm above the solar limb. These measurements are substantially higher than a number of previous estimates and may have considerable implications for our current understanding of the extended solar atmosphere. |
| doi_str_mv | 10.3847/1538-4357/ab08e9 |
| format | Article |
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| source | Institute of Physics Open Access Journal Titles; SWEPUB Freely available online; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Approximation method Astrophysics Coronal loops Coronal magnetic fields Image resolution instrumentation: polarimeters Magnetic fields Mapping Solar atmosphere Solar corona Solar limb Solar magnetic field Sun: chromosphere Sun: corona Sun: flares Sun: magnetic fields techniques: polarimetric |
| title | Mapping the Magnetic Field of Flare Coronal Loops |
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