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Proceedings Paper

DIOS: the Diffuse Intergalactic Oxygen Surveyor
Author(s): T. Ohashi; M. Ishida; S. Sasaki; Y. Ishisaki; K. Mitsuda; N. Y. Yamasaki; R. Fujimoto; Y. Takei; Y. Tawara; A. Furuzawa; Y. Suto; Y. Yoshikawa; H. Kawayara; N. Kawai; T. G. Tsuru; K. Matsushita; T. Kitayama
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Paper Abstract

We present our proposal for a small X-ray mission DIOS (Diffuse Intergalactic Oxygen Surveyor), consisting of a 4-stage X-ray telescope and an array of TES microcalorimeters, cooled with mechanical coolers, with a total weight of about 400 kg. The mission will perform survey observations of warm-hot intergalactic medium using OVII and OVIII emission lines, with the energy coverage up to 1.5 keV. The wide field of view of about 50' diameter, superior energy resolution close to 2 eV FWHM, and very low background will together enable us a wide range of science for diffuse X-ray sources. We briefly describe the design of the satellite, performance of the subsystems and the expected results.

Paper Details

Date Published: 15 June 2006
PDF: 9 pages
Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 62660G (15 June 2006); doi: 10.1117/12.671199
Show Author Affiliations
T. Ohashi, Tokyo Metropolitan Univ. (Japan)
M. Ishida, Tokyo Metropolitan Univ. (Japan)
S. Sasaki, Tokyo Metropolitan Univ. (Japan)
Y. Ishisaki, Tokyo Metropolitan Univ. (Japan)
K. Mitsuda, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
N. Y. Yamasaki, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
R. Fujimoto, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Y. Takei, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Y. Tawara, Nagoya Univ. (Japan)
A. Furuzawa, Nagoya Univ. (Japan)
Y. Suto, Univ. of Tokyo (Japan)
Y. Yoshikawa, Univ. of Tokyo (Japan)
H. Kawayara, Univ. of Tokyo (Japan)
N. Kawai, Tokyo Institute of Technology (Japan)
T. G. Tsuru, Kyoto Univ. (Japan)
K. Matsushita, Tokyo Univ. of Science (Japan)
T. Kitayama, Toho Univ. (Japan)


Published in SPIE Proceedings Vol. 6266:
Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray
Martin J. L. Turner; Günther Hasinger, Editor(s)

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