A Statistical Inference Method for Interpreting the CLASP Observations

J. Štěpán; J. Trujillo Bueno; L. Belluzzi; A. Asensio Ramos; R. Manso Sainz; T. Del Pino Alemán; R. Casini; R. Kano; A. Winebarger; F. Auchere; R. Ishikawa; N. Narukage; K. Kobayashi; T. Bando; Y. Katsukawa; M. Kubo; S. Ishikawa; G. Giono; H. Hara; Y. Suematsu; T. Shimizu; T. Sakao; S. Tsuneta; K. Ichimoto; J. Cirtain; P. Champey; B. De Pontieu; M. Carlsson

doi:10.3847/1538-4357/aad910

A Statistical Inference Method for Interpreting the CLASP Observations

J. Štěpán, J. Trujillo Bueno, L. Belluzzi, A. Asensio Ramos, R. Manso Sainz, T. Del Pino Alemán, R. Casini, R. Kano, A. Winebarger, F. Auchere, R. Ishikawa, N. Narukage, K. Kobayashi, T. Bando, Y. Katsukawa, M. Kubo, S. Ishikawa, G. Giono, H. Hara, Y. SuematsuT. Shimizu, T. Sakao, S. Tsuneta, K. Ichimoto, J. Cirtain, P. Champey, B. De Pontieu, M. Carlsson

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4 Scopus citations

Abstract

On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Lyα 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 Lyα line-center polarization observed by CLASP.

Original language	English
Article number	48
Journal	Astrophysical Journal
Volume	865
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/aad910
State	Published - Sep 20 2018
Externally published	Yes

Keywords

Sun: chromosphere
Sun: transition region
methods: statistical
polarization
radiative transfer

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10.3847/1538-4357/aad910

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Štěpán, J., Bueno, J. T., Belluzzi, L., Ramos, A. A., Sainz, R. M., Alemán, T. D. P., Casini, R., Kano, R., Winebarger, A., Auchere, F., Ishikawa, R., Narukage, N., Kobayashi, K., Bando, T., Katsukawa, Y., Kubo, M., Ishikawa, S., Giono, G., Hara, H., ... Carlsson, M. (2018). A Statistical Inference Method for Interpreting the CLASP Observations. Astrophysical Journal, 865(1), Article 48. https://doi.org/10.3847/1538-4357/aad910

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title = "A Statistical Inference Method for Interpreting the CLASP Observations",

abstract = "On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Lyα 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 Lyα line-center polarization observed by CLASP.",

keywords = "Sun: chromosphere, Sun: transition region, methods: statistical, polarization, radiative transfer",

author = "J. {\v S}t{\v e}p{\'a}n and Bueno, \{J. Trujillo\} and L. Belluzzi and Ramos, \{A. Asensio\} and Sainz, \{R. Manso\} and Alem{\'a}n, \{T. Del Pino\} and R. Casini and R. Kano and A. Winebarger and F. Auchere and R. Ishikawa and N. Narukage and K. Kobayashi and T. Bando and Y. Katsukawa and M. Kubo and S. Ishikawa and G. Giono and H. Hara and Y. Suematsu and T. Shimizu and T. Sakao and S. Tsuneta and K. Ichimoto and J. Cirtain and P. Champey and Pontieu, \{B. De\} and M. Carlsson",

year = "2018",

month = sep,

day = "20",

doi = "10.3847/1538-4357/aad910",

language = "English",

volume = "865",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

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Štěpán, J, Bueno, JT, Belluzzi, L, Ramos, AA, Sainz, RM, Alemán, TDP, Casini, R, Kano, R, Winebarger, A, Auchere, 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, BD & Carlsson, M 2018, 'A Statistical Inference Method for Interpreting the CLASP Observations', Astrophysical Journal, vol. 865, no. 1, 48. https://doi.org/10.3847/1538-4357/aad910

TY - JOUR

T1 - A Statistical Inference Method for Interpreting the CLASP Observations

AU - Štěpán, J.

AU - Bueno, J. Trujillo

AU - Belluzzi, L.

AU - Ramos, A. Asensio

AU - Sainz, R. Manso

AU - Alemán, T. Del Pino

AU - Casini, R.

AU - Kano, R.

AU - Winebarger, A.

AU - Auchere, F.

AU - Ishikawa, R.

AU - Narukage, N.

AU - Kobayashi, K.

AU - Bando, T.

AU - Katsukawa, Y.

AU - Kubo, M.

AU - Ishikawa, S.

AU - Giono, G.

AU - Hara, H.

AU - Suematsu, Y.

AU - Shimizu, T.

AU - Sakao, T.

AU - Tsuneta, S.

AU - Ichimoto, K.

AU - Cirtain, J.

AU - Champey, P.

AU - Pontieu, B. De

AU - Carlsson, M.

PY - 2018/9/20

Y1 - 2018/9/20

N2 - On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Lyα 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 Lyα line-center polarization observed by CLASP.

AB - On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Lyα 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 Lyα line-center polarization observed by CLASP.

KW - Sun: chromosphere

KW - Sun: transition region

KW - methods: statistical

KW - polarization

KW - radiative transfer

UR - https://www.scopus.com/pages/publications/85053884799

U2 - 10.3847/1538-4357/aad910

DO - 10.3847/1538-4357/aad910

M3 - Article

AN - SCOPUS:85053884799

SN - 0004-637X

VL - 865

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 48

ER -

A Statistical Inference Method for Interpreting the CLASP Observations

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Keywords

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