Category Archives: Development

The prototype fiber cable has been installed on the telescope/ 試作ファイバーケーブルを望遠鏡に敷設

We reported that Metrology Camera System had been installed to the Subaru Telescope for the test. MCS, however, is not the only instrument for PFS to have been installed to the telescope. The prototype fiber cable was also routed on the telescope to test the optical performance about a half year ago. The work was done a little long time… Read more »

Fiber slit test done for the first spectrograph module / 分光器1台目のファイバースリット試験

In this article, we are going to show recent news at Laboratoire d’Astrophysique de Marseille (LAM, France), where the first PFS Spectrograph module is being integrated. The assemblies for the first spectrograph module, such as the visible-blue and red cameras, optical bench and optical components have been delivered to LAM, as we showed in the previous article. Since then, the fiber… Read more »

After the arrival of metrology camera at the Subaru telescope… / すばる望遠鏡到着後メトロロジカメラは…

Since we published the article about the delivery of the Metrology Camera System (MCS) to Subaru Telescope in May this year, the member mainly from ASIAA (Academia Sinica Institute of Astronomy and Astrophysics, Taiwan) have visited Subaru Telescope a few times, in order to finalize the integration and proceed the on-site tests. In this article, we are going to talk… Read more »

Presence of PFS at the SPIE conference / PFS プロジェクト@SPIE国際会議

On June 10-15 2018, there was the SPIE conference titled “Astronomical Telescope and Instrumentation” at Austin Convention Center, in Austin, Texas, USA. This is a big international conference of astronomical instrumentation held every two years. Hundreds of presentations are given about a wide range of topics across ground-based facilities, space missions, and R&D studies. Like many other projects did so… Read more »

First “Cobra” Module is under the Test in Taiwan / 最初のファイバー配置システム、台湾で試験中

To talk about this story, one should go back in time a little … Some time ago, the Metrology Camera System was shipped over the Pacific Ocean(from Taiwan to Hawaii).  In fact, around the same time, the first fiber positioner module was also shipped over the Pacific Ocean, from California to Taiwan. The PFS instrument catches the light from galaxies and… Read more »

Metrology Camera is at Subaru Telescope Now! / メトロロジカメラ、すばる望遠鏡へ到着

About one month has passed since Metrology Camera was shipped from Taiwan. Now it has arrived at Subaru Telescope at Maunakea in Hawaii. After shipping, from 23 April 2018, members from Academia Sinica, Institute of Astronomy and Astrophysics (ASIAA) visited to Hawaii Observatory of National Astronomical Observatory of Japan for final development. At Hilo base, ASIAA inspected Metrology Camera and… Read more »

Updates about Spectrograph Development / 分光器開発は今…

It has been about 3 months since the first blue camera cryostat was shipped to France. In this post, we are showing the updates on development of the Spectrograph systems. At Laboratorie d’Astorophysique de Marseille (LAM), we finished the performance test using only a red camera unit, and started fully integrating the first spectrograph module (called SM1). We have already… Read more »

Metrology Camera left Taiwan to Hawaii / メトロロジカメラがハワイに向けて台湾を出発しました

One of the PFS instrument “Metrology Camera” was finally shipped from Taiwan to Hawaii!! Metrology Camera  is an instrument used to measure the fibers position while we configure fibers to target objects. Academia Sinica Institute of Astronomy and Astrophysics (ASIAA) in Taiwan has the responsibility for Metrology Camera development, and they tested its performances before shipping in the last a… Read more »

Database prototype was opened to PFS collaboration / データベース・プロトタイプシステムの内部公開

Written by Masayuki Tanaka (NAOJ) PFS survey is going to collect a huge amount of data.  Thanks to the high multiplexity with 2400 fibers, we are going to collect as many as 67,000 spectra in a single night according to the current survey plan.  In addition, we will measure a variety of physical parameters  — redshifts of galaxies, strengths of emission and absorption… Read more »

Updates on Development of Metrology Camera System / メトロロジカメラ開発は今…

“Metrology Camera System” is one of the PFS instrument subsystems under development by ASIAA (Academia Sinica Institute of Astronomy and Astrophysics, Taiwan). This is a small telescope system installed onto the Cassegrain Focus at the bottom of the Subaru telescope to look up the Prime focus, take the image of approximately 2400 back-illuminated fiber spots in one exposure with the large… Read more »