The Sunrise Chromospheric Infrared Spectro-Polarimeter SCIP: An Instrument for SUNRISE III

作者：Yukio Katsukawa, J. C. del Toro Iniesta, S. K. Solanki, Masahito Kubo, Hirohisa Hara, Toshifumi Shimizu, Takayoshi Oba, Yusuke Kawabata, Toshihiro Tsuzuki, F. Uraguchi, K. Shinoda, T. Tamura, Y. Suematsu, Takuma Matsumoto, Ryohtaroh T. Ishikawa, Yoshiyuki Naito, Kiyoshi Ichimoto, S. Nagata, Tetsu Anan, D. Orozco Suárez, E. Sanchis-Kilders, M. Balaguer Jiménez, A. C. López Jiménez, C. Quintero Noda, Daniel Álvarez García, J. L. Ramos Más, Juan Pedro Cobos Carrascosa, P. Labrousse, Beatriz Aparicio del Moral, A. Gomez, D. Hernández Expósito, Eduardo Bailón Martínez, J. M. Morales Fernández, Antonio J. Moreno Mantas, Ángel Tobaruela, I. Bustamante, F. J. Bailén, J. Blanco Rodríguez, J. L. Gasent Blesa, P. Rodríguez Martínez, A. Ferreres, D. Gilabert Palmer, J. Piqueras Carreño, Isabel Pérez-Grande, Ignacio Torralbo, A. Álvarez‐Herrero, A. Lagg, A. Gandorfer, T. Berkefeld, P. N. Bernasconi, A. Feller, T. L. Riethmüller, H. N. Smitha, V. Martı́nez Pillet, B. Grauf, A. Bell, M. Carpenter · 发表于：Solar Physics · 年份：2026 · DOI：10.1007/s11207-026-02696-0 · 被引用次数：5 · 研究领域：Solar and Space Plasma Dynamics、Optical Polarization and Ellipsometry、Adaptive optics and wavefront sensing

Abstract The Sunrise balloon-borne solar observatory is equipped with a one-meter aperture optical telescope, offering a unique platform for uninterrupted seeing-free observations across ultraviolet, visible, and infrared wavelengths from altitudes higher than 33 km. For the third flight of the upgraded Sunrise observatory conducted in 2024, now called Sunrise iii , a new spectro-polarimeter called the Sunrise Chromospheric Infrared spectroPolarimeter (SCIP) was developed for observing near-infrared wavelength ranges around 770 nm and 850 nm. These wavelength ranges contain many spectral lines, including two of the Ca ii infrared triplet, K i D1 and D2 lines, and multiple Fe i lines, that are sensitive to solar magnetic fields and velocities in the photosphere and chromosphere. SCIP consists of a grating spectrograph in which polarimetric measurements are conducted using a rotating waveplate as a modulator and polarizing beam splitters placed in front of the cameras. The spatial and spectral resolutions are $0.21''$ 0.21 ″ and $1\times10^{5}$ 1 × 10 5 , respectively, and a polarimetric sensitivity of 0.03% (1 $\sigma$ σ ) of the continuum intensity is achieved with a 10 s integration time per a resolution element. To achieve high-precision detection of small polarization signals, we carefully designed the optical and mechanical systems, polarization components, control electronics, and onboard data processing. Together with the other ...