Skip to main content

Prime Focus Spectrograph for the Subaru telescope: massively multiplexed optical and near-infrared fiber spectrograph

Author(s): Sugai, Hajime; Tamura, Naoyuki; Karoji, Hiroshi; Shimono, Atsushi; Takato, Naruhisa; et al

To refer to this page use:
Abstract: The Prime Focus Spectrograph (PFS) is an optical/near-infrared multifiber spectrograph with 2394 science fibers distributed across a 1.3-deg diameter field of view at the Subaru 8.2-m telescope. The wide wavelength coverage from 0.38 mu m to 1.26 mu m, with a resolving power of 3000, simultaneously strengthens its ability to target three main survey programs: cosmology, galactic archaeology and galaxy/AGN evolution. A medium resolution mode with a resolving power of 5000 for 0.71 mu m to 0.89 mu m will also be available by simply exchanging dispersers. We highlight some of the technological aspects of the design. To transform the telescope focal ratio, a broad-band coated microlens is glued to each fiber tip. A higher transmission fiber is selected for the longest part of the cable system, optimizing overall throughput; a fiber with low focal ratio degradation is selected for the fiber-positioner and fiber-slit components, minimizing the effects of fiber movements and fiber bending. Fiber positioning will be performed by a positioner consisting of two stages of piezo-electric rotary motors. The positions of these motors are measured by taking an image of artificially back-illuminated fibers with the metrology camera located in the Cassegrain container; the fibers are placed in the proper location by iteratively measuring and then adjusting the positions of the motors. Target light reaches one of the four identical fast-Schmidt spectrograph modules, each with three arms. The PFS project has passed several project-wide design reviews and is now in the construction phase. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.
Publication Date: Jul-2015
Electronic Publication Date: 23-Jun-2015
Citation: Sugai, Hajime, Tamura, Naoyuki, Karoji, Hiroshi, Shimono, Atsushi, Takato, Naruhisa, Kimura, Masahiko, Ohyama, Youichi, Ueda, Akitoshi, Aghazarian, Hrand, de Arruda, Marcio Vital, Barkhouser, Robert H, Bennett, Charles L, Bickerton, Steve, Bozier, Alexandre, Braun, David F, Bui, Khanh, Capocasale, Christopher M, Carr, Michael A, Castilho, Bruno, Chang, Yin-Chang, Chen, Hsin-Yo, Chou, Richard CY, Dawson, Olivia R, Dekany, Richard G, Ek, Eric M, Ellis, Richard S, English, Robin J, Ferrand, Didier, Ferreira, Decio, Fisher, Charles D, Golebiowski, Mirek, Gunn, James E, Hart, Murdock, Heckman, Timothy M, Ho, Paul TP, Hope, Stephen, Hovland, Larry E, Hsu, Shu-Fu, Hu, Yen-Shan, Huang, Pin Jie, Jaquet, Marc, Karr, Jennifer E, Kempenaar, Jason G, King, Matthew E, Le Fevre, Olivier, Le Mignant, David, Ling, Hung-Hsu, Loomis, Craig, Lupton, Robert H, Madec, Fabrice, Mao, Peter, Marrara, Lucas Souza, Menard, Brice, Morantz, Chaz, Murayama, Hitoshi, Murray, Graham J, de Oliveira, Antonio Cesar, de Oliveira, Claudia Mendes, de Oliveira, Ligia Souza, Orndorff, Joe D, Vilaca, Rodrigo de Paiva, Partos, Eamon J, Pascal, Sandrine, Pegot-Ogier, Thomas, Reiley, Daniel J, Riddle, Reed, Santos, Leandro, dos Santos, Jesulino Bispo, Schwochert, Mark A, Seiffert, Michael D, Smee, Stephen A, Smith, Roger M, Steinkraus, Ronald E, Sodre, Laerte, Spergel, David N, Surace, Christian, Tresse, Laurence, Vidal, Clement, Vives, Sebastien, Wang, Shiang-Yu, Wen, Chih-Yi, Wu, Amy C, Wyse, Rosie, Yan, Chi-Hung. (2015). Prime Focus Spectrograph for the Subaru telescope: massively multiplexed optical and near-infrared fiber spectrograph. JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS, 1 (10.1117/1.JATIS.1.3.035001
DOI: doi:10.1117/1.JATIS.1.3.035001
ISSN: 2329-4124
EISSN: 2329-4221
Type of Material: Journal Article
Version: Final published version. This is an open access article.

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.