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Chromospheric polar...
Chromospheric polarimetry through multiline observations of the 850nm spectral region III : Chromospheric jets driven by twisted magnetic fields
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Quintero Noda, C. (author)
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Iijima, H. (author)
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Katsukawa, Y. (author)
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Shimizu, T. (author)
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Carlsson, M. (author)
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- de la Cruz Rodríguez, Jaime (author)
- Stockholms universitet,Institutionen för astronomi
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Ruiz Cobo, B. (author)
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Orozco Suárez, D. (author)
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Oba, T. (author)
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Anan, T. (author)
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Kubo, M. (author)
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Kawabata, Y. (author)
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Ichimoto, K. (author)
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Suematsu, Y. (author)
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(creator_code:org_t)
- 2019-04-20
- 2019
- English.
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In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 486:3, s. 4203-4215
- Related links:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We investigate the diagnostic potential of the spectral lines at 850 nm for understanding the magnetism of the lower atmosphere. For that purpose, we use a newly developed 3D simulation of a chromospheric jet to check the sensitivity of the spectral lines to this phenomenon as well as our ability to infer the atmospheric information through spectropolarimetric inversions of noisy synthetic data. We start comparing the benefits of inverting the entire spectrum at 850 nm versus only the Ca II 8542 angstrom spectral line. We found a better match of the input atmosphere for the former case, mainly at lower heights. However, the results at higher layers were not accurate. After several tests, we determined that we need to weight more the chromospheric lines than the photospheric ones in the computation of the goodness of the fit. The new inversion configuration allows us to obtain better fits and consequently more accurate physical parameters. Therefore, to extract the most from multiline inversions, a proper set of weights needs to be estimated. Besides that, we conclude again that the lines at 850 nm, or a similar arrangement with Ca II 8542 angstrom plus Zeeman-sensitive photospheric lines, pose the best-observing configuration for examining the thermal and magnetic properties of the lower solar atmosphere.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- techniques: polarimetric
- Sun: chromosphere
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Quintero Noda, C ...
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Iijima, H.
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Katsukawa, Y.
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Shimizu, T.
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Carlsson, M.
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de la Cruz Rodrí ...
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show more...
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Ruiz Cobo, B.
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Orozco Suárez, D ...
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Oba, T.
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Anan, T.
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Kubo, M.
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Kawabata, Y.
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Ichimoto, K.
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Suematsu, Y.
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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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Monthly notices ...
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Stockholm University