A spectrograph instrument concept for the Prime Focus Spectrograph (PFS) on Subaru Telescope

Sébastien Vives*a, David Le Mignanta, Fabrice Madeca, Marc Jaqueta, Eric Prietoa, Laurent Martina, Olivier Le Fèvrea, James Gunnb, Michael Carrb, Stephen Smeec, Robert Barkhouserc, Hajime Sugaid, Naoyuki Tamurad

aLaboratoire d’Astrophysique de Marseille (CNRS/Aix-Marseille University), France
bDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA
cDepartment of Physics and Astronomy, Johns Hopkins University, Baltimore, MD, USA
dInstitute for the Physics and Mathematics of the Universe (IPMU), University of Tokyo (Japan)

We describe the conceptual design of the spectrograph opto-mechanical concept for the SuMIRe Prime Focus Spectrograph (PFS) being developed for the SUBARU telescope. The SuMIRe PFS will consist of four identical spectrographs, each receiving 600 fibers from a 2400 fiber robotic positioner at the prime focus. Each spectrograph will have three channels covering in total, a wavelength range from 380 nm to 1300 nm. The requirements for the instrument are summarized in Section 1. We present the optical design and the optical performance and analysis in Section 2. Section 3 introduces the mechanical design, its requirements and the proposed concepts. Finally, the AIT phases for the Spectrograph System are described in Section 5.

Sébastien Vives et al., “A spectrograph instrument concept for the Prime Focus Spectrograph (PFS) on Subaru Telescope”, Ground-based and Airborne Instrumentation for Astronomy IV, Ian S. McLean, Suzanne K. Ramsay, Hideki Takami, Editors, Proc. SPIE 8446 (2012).

Copyright 2012 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.