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''Suzaku'' (formerly ASTRO-EII) was an X-ray astronomy satellite developed jointly by NASA's Goddard Space Flight Center and the Institute of Space and Aeronautical Science at JAXA to probe high energy X-ray sources, such as supernova explosions, black holes and galactic clusters. It was launched on 10 July 2005 aboard the M-V-6 rocket. After its successful launch, the satellite was renamed ''Suzaku'' after the mythical Vermilion bird of the South.〔(すざく（朱雀、''Suzaku''） 命名の理由 ), JAXA〕 Just weeks after launch, on 29 July 2005 the first of a series of cooling system malfunctions occurred. These ultimately caused the entire reservoir of liquid helium to boil off into space by 8 August 2005. This effectively shut down the X-ray Spectrometer (XRS), which was the spacecraft's primary instrument. The two other instruments, the X-ray Imaging Spectrometer (XIS) and the Hard X-ray Detector (HXD), were unaffected by the malfunction. As a result, there are plans to integrate another XRS into the NeXT X-ray observation satellite, planned for launch in 2015 or 2016. On 26 August 2015, JAXA announced that communications with ''Suzaku'' had been intermittent since 1 June, and that the resumption of scientific operations would be difficult to accomplish given the spacecraft's condition. Mission operators decided to complete the mission imminently, as ''Suzaku'' had exceeded its design lifespan by 8 years at this point. The mission came to an end on 2 September 2015, when JAXA commanded the radio transmitters on ''Suzaku'' to switch themselves off.〔 ==Spacecraft instruments== ''Suzaku'' is carrying high spectroscopic resolution, very wide energy band instruments for detecting signals ranging from soft X-rays up to gamma-rays (0.3–600 keV). High resolution spectroscopy and wide-band are essential factors to physically investigate high energy astronomical phenomena, such as black holes and supernovae. One such feature, the broad iron K line, may be key to more direct imaging of black holes. * X-ray Telescope (XRT) * X-ray Spectrometer (XRS) * X-ray Imaging Spectrometer (XIS) * Hard X-ray Detector (HXD) * * Uses Gadolinium Silicate crystal (GSO), Gd2SiO5(Ce) * * Uses Bismuth Germanate crystal (BGO), Bi4Ge3O12〔 File:ASTRO-EII XRT.JPG|X-ray Telescope (XRT) File:Suzaku HXD.jpg|Hard X-ray Detector (HXD) File:Suzaku XIS.jpg|X-ray Imaging Spectrometer (XIS) File:Suzaku XRS.jpg|X-ray Spectrometer (XRS) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Suzaku (satellite)」の詳細全文を読む スポンサード リンク
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