A statistical inference method for interpreting the CLASP observations

On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Ly alpha line of the solar disk radiation, revealing conspicuous spatial variations in the Q/I and U/I signals. Via the Hanle effect, the line-center Q/I and U/I amplitudes encode information on the magnetic field of the chromosphere-corona transition region, but they are also sensitive to the three-dimensional structure of this corrugated interface region. With the help of a simple line-formation model, here we propose a statistical inference method for interpreting the Ly alpha line-center polarization observed by CLASP.

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Author Štěpán, J.
Bueno, J. Trujillo
Belluzzi, L.
Ramos, A. Asensio
Sainz, R. Manso
Alemán, T. del Pino
Casini, R.
Kano, R.
Winebarger, A.
Auchère, F.
Ishikawa, R.
Narukage, N.
Kobayashi, K.
Bando, T.
Katsukawa, Y.
Kubo, M.
Ishikawa, S.
Giono, G.
Hara, H.
Suematsu, Y.
Shimizu, T.
Sakao, T.
Tsuneta, S.
Ichimoto, K.
Cirtain, J.
Champey, P.
Pontieu, B. De
Carlsson, M.
Publisher UCAR/NCAR - Library
Publication Date 2018-09-20T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T19:20:46.067000
Metadata Record Identifier edu.ucar.opensky::articles:21984
Metadata Language eng; USA
Suggested Citation Štěpán, J., Bueno, J. Trujillo, Belluzzi, L., Ramos, A. Asensio, Sainz, R. Manso, Alemán, T. del Pino, Casini, R., Kano, R., Winebarger, A., Auchère, F., Ishikawa, R., Narukage, N., Kobayashi, K., Bando, T., Katsukawa, Y., Kubo, M., Ishikawa, S., Giono, G., Hara, H., Suematsu, Y., Shimizu, T., Sakao, T., Tsuneta, S., Ichimoto, K., Cirtain, J., Champey, P., Pontieu, B. De, Carlsson, M.. (2018). A statistical inference method for interpreting the CLASP observations. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d70c4zp0. Accessed 23 February 2025.

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