A Statistical Inference Method for Interpreting the CLASP Observations

被引：4

作者：

Stepan, J. ^{[1
,2
]}

Trujillo Bueno, J. ^{[2
,3
,4
]}

Belluzzi, L. ^{[5
,6
]}

Asensio Ramos, A. ^{[2
]}

Sainz, R. Manso ^{[7
]}

del Pino Aleman, T. ^{[2
]}

Casini, R. ^{[8
]}

Kano, R. ^{[9
]}

Winebarger, A. ^{[10
]}

Aucherer, F. ^{[11
]}

Ishikawa, R. ^{[9
]}

Narukage, N. ^{[9
]}

Kobayashi, K. ^{[10
]}

Bando, T. ^{[9
]}

Katsukawa, Y. ^{[9
]}

Kubo, M. ^{[9
]}

Ishikawa, S. ^{[12
]}

Giono, G. ^{[9
]}

Hara, H. ^{[9
]}

Suematsu, Y. ^{[9
]}

Shimizu, T. ^{[12
]}

Sakao, T. ^{[12
]}

Tsuneta, S. ^{[9
]}

Ichimoto, K. ^{[9
,13
]}

Cirtain, J. ^{[10
]}

Champey, P. ^{[10
]}

De Pontieu, B. ^{[14
,15
,16
]}

Carlsson, M. ^{[15
,16
]}

机构：

[1] Astron Inst ASCR, Fricova 298, Ondrejov 25165, Czech Republic

[2] Inst Astrofis Canarias, E-38205 San Cristobal la Laguna, Tenerife, Spain

[3] Univ La Laguna, Dept Astrofis, E-38206 San Cristobal la Laguna, Tenerife, Spain

[4] CSIC, Madrid, Spain

[5] Ist Ric Solari Locarno, CH-6605 Locarno, Switzerland

[6] Kiepenheuer Inst Sonnenphys, D-79104 Freiburg, Germany

[7] Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany

[8] Natl Ctr Atmospher Res, High Altitude Observ, Post Off Box 3000, Boulder, CO 80307 USA

[9] Natl Inst Nat Sci, Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan

[10] NASA, Marshall Space Flight Ctr, ZP 13, Huntsville, AL 35812 USA

[11] Univ Paris Sud, CNRS, Inst Astrophys Spatiale, Baiment 121, F-91405 Orsay, France

[12] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan

[13] Kyoto Univ, Hida Observ, Takayama, Gifu 5061314, Japan

[14] Lockheed Martin Solar & Astrophys Lab, Palo Alto, CA USA

[15] Univ Oslo, Rosseland Ctr Solar Phys, POB 1029 Blindern, NO-0315 Oslo, Norway

[16] Univ Oslo, Inst Theoret Astrophys, POB 1029 Blindern, NO-0315 Oslo, Norway

来源：

ASTROPHYSICAL JOURNAL | 2018年 / 865卷 / 01期

基金：

欧洲研究理事会;

关键词：

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

D O I：

10.3847/1538-4357/aad910

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：11

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