DIOS - The Diffuse Intergalactic Oxygen Surveyor: Status and prospects

T. Ohashi, Y. Ishisaki, Y. Ezoe, S. Sasaki, H. Kawahara, K. Mitsuda, N. Y. Yamasaki, Y. Takei, M. Ishida, Y. Tawara, I. Sakurai, A. Furuzawa, Y. Suto, K. Yoshikawa, N. Kawai, R. Fujimoto, T. G. Tsuru, K. Matsushita, T. Kitayama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)


DIOS (Diffuse Intergalactic Oxygen Surveyor) is a small scientific satellite with a main aim for the search of warm-hot intergalactic medium using redshifted OVII and OVIII lines. The instrument will consist of a 4-stage X-ray telescope and an array of TES microcalorimeters with 256 pixels, cooled with mechanical coolers. Hardware development of DIOS and the expected results are described. Survey observations over about 5°×5°area will reveal new filamentary structures. DIOS will be proposed to the 3rd mission in JAXA's small satellite series in 2011, aiming for launch around 2016 if it will be selected.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2010
Subtitle of host publicationUltraviolet to Gamma Ray
Publication statusPublished - 2010
Externally publishedYes
EventSpace Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray - San Diego, CA, United States
Duration: 28-06-201002-07-2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherSpace Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'DIOS - The Diffuse Intergalactic Oxygen Surveyor: Status and prospects'. Together they form a unique fingerprint.

Cite this