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Mapping the Magneti...
Mapping the Magnetic Field of Flare Coronal Loops
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Kuridze, D. (author)
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Mathioudakis, M. (author)
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Morgan, H. (author)
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Oliver, R. (author)
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Kleint, L. (author)
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Zaqarashvili, T. (author)
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Reid, A. (author)
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Koza, J. (author)
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- Löfdahl, Mats G. (author)
- Stockholms universitet,Institutionen för astronomi
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- Hillberg, Tomas (author)
- Stockholms universitet,Institutionen för astronomi
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Kukhianidze, V (author)
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Hanslmeier, A. (author)
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(creator_code:org_t)
- 2019-03-29
- 2019
- English.
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In: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 874:2
- Related links:
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https://doi.org/10.3...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- instrumentation: polarimeters
- Sun: chromosphere
- Sun: corona
- Sun: flares
- Sun: magnetic fields
- techniques: polarimetric
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Kuridze, D.
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Mathioudakis, M.
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Morgan, H.
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Oliver, R.
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Kleint, L.
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Zaqarashvili, T.
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show more...
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Reid, A.
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Koza, J.
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Löfdahl, Mats G.
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Hillberg, Tomas
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Kukhianidze, V
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Hanslmeier, A.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Astrophysical Jo ...
- By the university
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Stockholm University