PFS presentations at the international conference SPIE

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There was an international conference called “SPIE 2022 Astronomical telescope + Instrumentation” from 17 to 22 July 2022 in Montreal, Canada. People working for research institutes and companies in the world which relate with the telescope and astronomical instruments participate in this meeting, and exchange information and do networking. SPIE conference is held every other year. The last one (in… Read more »

The second fiber cable system is now on the Subaru telescope!

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As we reported in the previous article, the second fiber cable system was standing by in Hilo, Hawaii, for its installation to the Subaru telescope. Thanks to the schedule arrangement by the observatory, we had a 2-week slot in April to install and test the second fiber cable system. We are going to report the installation and test activities in… Read more »

13th PFS collaboration meeting

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Since the project launched, we have had collaboration meetings rather annually. We had the 13th collaboration meeting from 22nd to 24th March 2022. Due to the COVID situation, we meeting was held online using the platforms Zoom and Gather Town as we did in the last year. As PFS participant institutes are from all over the world, the meeting time,… Read more »

Hitoshi Murayama was elected as honored AAAS fellow!

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We got an exciting news — our PI, professor Hitoshi Murayama was elected as a fellow of AAAS, American Association for the Advancement of Science in 2021!! AAAS is the world’s largest general scientific society to advance science, engineering and innovation for the benefit of all people all over the world. AAAS is the publisher of famous journal “Science”. Every… Read more »

The second fiber cable unit has arrived in Hawaii

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Happy new year! The first article in 2022 is about the subsystem delivered to Subaru telescope a while ago. In October 2021, the second fiber cable unit was shipped to Subaru telescope. PFS fiber cable system is ~55m cable connecting Prime Focus Instrument on the top of the Subaru telescope and Spectrograph System on 4th floor in the dome building…. Read more »

Engineering Observation in November 2021

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Two months after on-telescope test by integrating subsystems, we had another engineering observation (engineering run) on three nights in November 2021. In this article, we’re going to tell a story about our work around the engineering nights. Although we made big progresses in fiber configuration etc. during the September run, we also found a couple of major issues on Prime… Read more »

The first on-telescope test integrating all the delivered subsystems

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We PFS project met a big milestone in September 2021. We finally carried out on-telescope test integrating the subsystems Prime Focus Instrument, Spectrograph Module 1, Fiber Cable System 1, and Metrology Camera System!! PFS instrument consists of four major subsystems: Prime Focus Instrument (PFI) on the prime focus of Subaru Telescope, Metrology Camera System (MCS) on Cassegrain Focus, four identical… Read more »

News about activities of Spectrograph integration

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At Laboratoire d’Astrophysique de Marseille (LAM), integration of the second and the third Spectrograph Modules is on-going. We are talking about the recent activities in this post. PFS project is developing four spectrograph modules to observe about 2400 objects simultaneously. We designed the system for each module to evenly cover the field of view on the telescope’s prime focal plane… Read more »

Prime Focus Instrument has arrived at Subaru Telescope

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Time flies and a half of 2021 has already passed. Earlier this year, the first fiber cable unit and the miniature telescope for night sky study “SuNSS” was installed on Subaru telescope. In this article, we report a big news of our project. Finally the Prime Focus Instrument has delivered from Taiwan to Subaru Telescope in June 2021!! Prime Focus… Read more »

Obituary: Prof. Naruhisa Takato

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Professor Naruhisa Takato passed away on May 14, 2021. He got ill on April 24 while he was staying in Taichung to participate in the final phase of integration and test of Prime Focus Instrument (PFI) of the PFS instrument. An emergency surgery was operated on the same day and then he was under intensive cares, but he never returned…. Read more »