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The Solar-C_EUVST mission
Author(s): Toshifumi Shimizu; Shinsuke Imada; Tomoko Kawate; Kiyoshi Ichimoto; Yoshinori Suematsu; Hirohisa Hara; Yukio Katsukawa; Masahito Kubo; Shin Toriumi; Tetsuya Watanabe; Takaaki Yokoyama; Clarence M. Korendyke; Harry P. Warren; Ted Tarbell; Bart De Pontieu; Luca Teriaca; Udo H. Schühle; Sami Solanki; Louise K. Harra; Sarah Matthews; A. Fludra; F. Auchère; V. Andretta; G. Naletto; A. Zhukov
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Paper Abstract

Solar-C EUVST (EUV High-Throughput Spectroscopic Telescope) is a solar physics mission concept that was selected as a candidate for JAXA competitive M-class missions in July 2018. The onboard science instrument, EUVST, is an EUV spectrometer with slit-jaw imaging system that will simultaneously observe the solar atmosphere from the photosphere/chromosphere up to the corona with seamless temperature coverage, high spatial resolution, and high throughput for the first time. The mission is designed to provide a conclusive answer to the most fundamental questions in solar physics: how fundamental processes lead to the formation of the solar atmosphere and the solar wind, and how the solar atmosphere becomes unstable, releasing the energy that drives solar flares and eruptions. The entire instrument structure and the primary mirror assembly with scanning and tip-tilt fine pointing capability for the EUVST are being developed in Japan, with spectrograph and slit-jaw imaging hardware and science contributions from US and European countries. The mission will be launched and installed in a sun-synchronous polar orbit by a JAXA Epsilon vehicle in 2025. ISAS/JAXA coordinates the conceptual study activities during the current mission definition phase in collaboration with NAOJ and other universities. The team is currently working towards the JAXA final down-selection expected at the end of 2019, with strong support from US and European colleagues. The paper provides an overall description of the mission concept, key technologies, and the latest status.

Paper Details

Date Published: 9 September 2019
PDF: 11 pages
Proc. SPIE 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI, 1111807 (9 September 2019); doi: 10.1117/12.2528240
Show Author Affiliations
Toshifumi Shimizu, Institute of Space and Astronautical Science (Japan)
Shinsuke Imada, Nagoya Univ. (Japan)
Tomoko Kawate, Institute of Space and Astronautical Science (Japan)
Kiyoshi Ichimoto, Kyoto Univ. (Japan)
Yoshinori Suematsu, National Astronomical Observatory of Japan (Japan)
Hirohisa Hara, National Astronomical Observatory of Japan (Japan)
Yukio Katsukawa, National Astronomical Observatory of Japan (Japan)
Masahito Kubo, National Astronomical Observatory of Japan (Japan)
Shin Toriumi, Institute of Space and Astronautical Science (Japan)
Tetsuya Watanabe, Institute of Space and Astronautical Science (Japan)
Takaaki Yokoyama, The Univ. of Tokyo (Japan)
Clarence M. Korendyke, U.S. Naval Research Lab. (United States)
Harry P. Warren, U.S. Naval Research Lab. (United States)
Ted Tarbell, Lockheed Martin Space Systems Co. (United States)
Bart De Pontieu, Lockheed Martin Space Systems Co. (United States)
Luca Teriaca, Max-Planck-Institut für Sonnensystemforschung (Germany)
Udo H. Schühle, Max-Planck-Institut für Sonnensystemforschung (Germany)
Sami Solanki, Max-Planck-Institut für Sonnensystemforschung (Germany)
Louise K. Harra, Mullard Space Science Lab. (United Kingdom)
Sarah Matthews, Mullard Space Science Lab. (United Kingdom)
A. Fludra, STFC Rutherford Appleton Lab. (United Kingdom)
F. Auchère, Institut d'Astrophysique Spatiale (France)
V. Andretta, Istituto Nazionale di Astrofisica (Italy)
G. Naletto, Univ. degli Studi di Padova (Italy)
A. Zhukov, Royal Observatory of Belgium (Belgium)


Published in SPIE Proceedings Vol. 11118:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI
Oswald H. Siegmund, Editor(s)

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