Journal
JOURNAL OF LOW TEMPERATURE PHYSICS
Volume 167, Issue 5-6, Pages 795-802Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10909-012-0482-1
Keywords
X-ray astronomy; X-ray microcalorimeters; Space cryogenics
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Funding
- Grants-in-Aid for Scientific Research [22340039] Funding Source: KAKEN
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The science and an overview of the Soft X-ray Spectrometer onboard the STRO-H mission are presented. The SXS consists of X-ray focusing mirrors and a microcalorimeter array and is developed by international collaboration lead by JAXA and NASA with European participation. The detector is a 6x6 format microcalorimeter array operated at a cryogenic temperature of 50 mK and covers a 3'x3' field of view of the X-ray telescope of 5.6 m focal length. We expect an energy resolution better than 7 eV (FWHM, requirement) with a goal of 4 eV. The effective area of the instrument will be 225 cm(2) at 7 keV; by a factor of about two larger than that of the X-ray microcalorimeter on board Suzaku. One of the main scientific objectives of the SXS is to investigate turbulent and/or macroscopic motions of hot gas in clusters of galaxies.
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