DIOS: the Diffuse Intergalactic Oxygen Surveyor

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

doi:10.1117/12.671199

15 June 2006 DIOS: the Diffuse Intergalactic Oxygen Surveyor

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

Author Affiliations +

Proceedings Volume 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray; 62660G (2006) https://doi.org/10.1117/12.671199
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

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.

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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, and T. Kitayama "DIOS: the Diffuse Intergalactic Oxygen Surveyor", Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 62660G (15 June 2006); https://doi.org/10.1117/12.671199

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