Monthly Archives: September 2015

The fiber positionar is under the experiment / ファイバー配置システム試験中

One of the unique features of the PFS instrument is its multiplicity: Using 2400 fibers, a number of spectra of stars and galaxies can be obtained simultaneously. The actuator named “Cobra”, which is comprised of two motors, is used for moving each fiber to the position of an astronomical object of interest on the focal plane. The “patrol area”, where each fiber attached to Cobra… Read more »

Cooling Experiment of Camera Modules is Going on / カメラユニットの試験が進行中

The cooling experiment of camera modules for spectrograph is going on at Johns Hopkins University, the US. In order to observe faint stars and galaxies, astronomical detectors in visible and near infrared are used under very low temperature (-100 degree Celsius / -148 degree Fahrenheit or less than it) and high vacuum (less than one billion of atmospheric pressure). By this experiment… Read more »

Review meeting of design of the Spectrographs Clean Room was held / 分光器設置室の設計レビュー会議をしました

A review meeting for the Clean Room holding the spectrographs was held on 19 and 20 August at Hawaii Observatory, National Astronomical Observatory of Japan. The participants were from Kavli IPMU, collaborators having the responsibility for the Spectrograph, and Hawaii Observatory. The spectrographs are put on the fourth floor in the dome building of  Subaru telescope. The floor will have a huge clean… Read more »