Prime Focus Spectrograph - Subaru's future -
Abstract
The Prime Focus Spectrograph (PFS) of the Subaru Measurement of Images and Redshifts (SuMIRe) project has been endorsed by Japanese community as one of the main future instruments of the Subaru 8.2-meter telescope at Mauna Kea, Hawaii. This optical/near-infrared multi-fiber spectrograph targets cosmology with galaxy surveys, Galactic archaeology, and studies of galaxy/AGN evolution. Taking advantage of Subaru's wide field of view, which is further extended with the recently completed Wide Field Corrector, PFS will enable us to carry out multi-fiber spectroscopy of 2400 targets within 1.3 degree diameter. A microlens is attached at each fiber entrance for F-ratio transformation into a larger one so that difficulties of spectrograph design are eased. Fibers are accurately placed onto target positions by positioners, each of which consists of two stages of piezo-electric rotary motors, through iterations by using back-illuminated fiber position measurements with a wide-field metrology camera. Fibers then carry light to a set of four identical fast-Schmidt spectrographs with three color arms each: the wavelength ranges from 0.38 {\mu}m to 1.3 {\mu}m will be simultaneously observed with an average resolving power of 3000. Before and during the era of extremely large telescopes, PFS will provide the unique capability of obtaining spectra of 2400 cosmological/astrophysical targets simultaneously with an 8-10 meter class telescope. The PFS collaboration, led by IPMU, consists of USP/LNA in Brazil, Caltech/JPL, Princeton, & JHU in USA, LAM in France, ASIAA in Taiwan, and NAOJ/Subaru.
Keywords
Cite
@article{arxiv.1210.2719,
title = {Prime Focus Spectrograph - Subaru's future -},
author = {Hajime Sugai and Hiroshi Karoji and Naruhisa Takato and Naoyuki Tamura and Atsushi Shimono and Youichi Ohyama and Akitoshi Ueda and Hung-Hsu Ling and Marcio Vital de Arruda and Robert H. Barkhouser and Charles L. Bennett and Steve Bickerton and David F. Braun and Robin J. Bruno and Michael A. Carr and João Batista de Carvalho Oliveira and Yin-Chang Chang and Hsin-Yo Chen and Richard G. Dekany and Tania Pereira Dominici and Richard S. Ellis and Charles D. Fisher and James E. Gunn and Timothy M. Heckman and Paul T. P. Ho and Yen-Shan Hu and Marc Jaquet and Jennifer Karr and Masahiko Kimura and Olivier Le Fèvre and David Le Mignant and Craig Loomis and Robert H. Lupton and Fabrice Madec and Lucas Souza Marrara and Laurent Martin and Hitoshi Murayama and Antonio Cesar de Oliveira and Claudia Mendes de Oliveira and Ligia Souza de Oliveira and Joe D. Orndorff and Rodrigo de Paiva Vilaça and Vanessa Bawden de Paula Macanhan and Eric Prieto and Jesulino Bispo dos Santos and Michael D. Seiffert and Stephen A. Smee and Roger M. Smith and Laerte Sodré and David N. Spergel and Christian Surace and Sebastien Vives and Shiang-Yu Wang and Chi-Hung Yan},
journal= {arXiv preprint arXiv:1210.2719},
year = {2012}
}
Comments
13 pages, 11 figures, submitted to "Ground-based and Airborne Instrumentation for Astronomy IV, Ian S. McLean, Suzanne K. Ramsay, Hideki Takami, Editors, Proc. SPIE 8446 (2012)"