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Proceedings Paper

The x-ray/EUV telescope for the Solar-C mission: science and development activities
Author(s): Taro Sakao; Noriyuki Narukage; Shinsuke Imada; Yoshinori Suematsu; Masumi Shimojo; Saku Tsuneta; Edward E. DeLuca; Kyoko Watanabe; Shin-nosuke Ishikawa
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Paper Abstract

We report science and development activities of the X-ray/EUV telescope for the Japanese Solar-C mission whose projected launch around 2019. The telescope consists of a package of (a) a normal-incidence (NI) EUV telescope and (b) a grazing-incidence (GI) soft X-ray telescope. The NI telescope chiefly provides images of low corona (whose temperature 1 MK or even lower) with ultra-high angular resolution (0.2-0.3"/pixel) in 3 wavelength bands (304, 171, and 94 angstroms). On the other hand, the GI telescope provides images of the corona with a wide temperature coverage (1 MK to beyond 10 MK) with the highest-ever angular resolution (~0.5"/pixel) as a soft X-ray coronal imager. The set of NI and GI telescopes should provide crucial information for establishing magnetic and gas-dynamic connection between the corona and the lower atmosphere of the Sun which is essential for understanding heating of, and plasma activities in, the corona. Moreover, we attempt to implement photon-counting capability for the GI telescope with which imaging-spectroscopy of the X-ray corona will be performed for the first time, in the energy range from ~0.5 keV up to 10 keV. The imaging-spectroscopic observations will provide totally-new information on mechanism(s) for the generation of hot coronal plasmas (heated beyond a few MK), those for magnetic reconnection, and even generation of supra-thermal electrons associated with flares. An overview of instrument outline and science for the X-ray photoncounting telescope are presented, together with ongoing development activities in Japan towards soft X-ray photoncounting observations, focusing on high-speed X-ray CMOS detector and sub-arcsecond-resolution GI mirror.

Paper Details

Date Published: 17 September 2012
PDF: 11 pages
Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84430A (17 September 2012); doi: 10.1117/12.926850
Show Author Affiliations
Taro Sakao, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Noriyuki Narukage, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Shinsuke Imada, National Astronomical Observatory of Japan (Japan)
Yoshinori Suematsu, National Astronomical Observatory of Japan (Japan)
Masumi Shimojo, National Astronomical Observatory of Japan (Japan)
Saku Tsuneta, National Astronomical Observatory of Japan (Japan)
Edward E. DeLuca, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Kyoko Watanabe, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Shin-nosuke Ishikawa, National Astronomical Observatory of Japan (Japan)


Published in SPIE Proceedings Vol. 8443:
Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Stephen S. Murray; Jan-Willem A. den Herder, Editor(s)

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