TY - GEN
T1 - The Keck Cosmic Web Imager
T2 - Ground-Based and Airborne Instrumentation for Astronomy IV
AU - Morrissey, Patrick
AU - Matuszewski, Mateusz
AU - Martin, Chris
AU - Moore, Anna
AU - Adkins, Sean
AU - Epps, Harland
AU - Bartos, Randy
AU - Cabak, Jerry
AU - Cowley, Dave
AU - Davis, Jack
AU - Delacroix, Alex
AU - Fucik, Jason
AU - Hilliard, David
AU - James, Ean
AU - Kaye, Steve
AU - Lingner, Nicole
AU - Neill, James D.
AU - Pistor, Christoph
AU - Phillips, Drew
AU - Rockosi, Connie
AU - Weber, Bob
PY - 2012
Y1 - 2012
N2 - The Keck Cosmic Web Imager (KCWI) is a new facility instrument being developed for the W. M. Keck Observatory and funded for construction by the Telescope System Instrumentation Program (TSIP) of the National Science Foundation (NSF). KCWI is a bench-mounted spectrograph for the Keck II right Nasmyth focal station, providing integral field spectroscopy over a seeing-limited field up to 20"x33" in extent. Selectable Volume Phase Holographic (VPH) gratings provide high efficiency and spectral resolution in the range of 1000 to 20000. The dual-beam design of KCWI passed a Preliminary Design Review in summer 2011. The detailed design of the KCWI blue channel (350 to 700 nm) is now nearly complete, with the red channel (530 to 1050 nm) planned for a phased implementation contingent upon additional funding. KCWI builds on the experience of the Caltech team in implementing the Cosmic Web Imager (CWI), in operation since 2009 at Palomar Observatory. KCWI adds considerable flexibility to the CWI design, and will take full advantage of the excellent seeing and dark sky above Mauna Kea with a selectable nod-and-shuffle observing mode. In this paper, models of the expected KCWI sensitivity and background subtraction capability are presented, along with a detailed description of the instrument design. The KCWI team is lead by Caltech (project management, design and implementation) in partnership with the University of California at Santa Cruz (camera optical and mechanical design) and the W. M. Keck Observatory (program oversight and observatory interfaces).
AB - The Keck Cosmic Web Imager (KCWI) is a new facility instrument being developed for the W. M. Keck Observatory and funded for construction by the Telescope System Instrumentation Program (TSIP) of the National Science Foundation (NSF). KCWI is a bench-mounted spectrograph for the Keck II right Nasmyth focal station, providing integral field spectroscopy over a seeing-limited field up to 20"x33" in extent. Selectable Volume Phase Holographic (VPH) gratings provide high efficiency and spectral resolution in the range of 1000 to 20000. The dual-beam design of KCWI passed a Preliminary Design Review in summer 2011. The detailed design of the KCWI blue channel (350 to 700 nm) is now nearly complete, with the red channel (530 to 1050 nm) planned for a phased implementation contingent upon additional funding. KCWI builds on the experience of the Caltech team in implementing the Cosmic Web Imager (CWI), in operation since 2009 at Palomar Observatory. KCWI adds considerable flexibility to the CWI design, and will take full advantage of the excellent seeing and dark sky above Mauna Kea with a selectable nod-and-shuffle observing mode. In this paper, models of the expected KCWI sensitivity and background subtraction capability are presented, along with a detailed description of the instrument design. The KCWI team is lead by Caltech (project management, design and implementation) in partnership with the University of California at Santa Cruz (camera optical and mechanical design) and the W. M. Keck Observatory (program oversight and observatory interfaces).
KW - Integral field spectrograph Keck Observatory KCWI
UR - http://www.scopus.com/inward/record.url?scp=84871996423&partnerID=8YFLogxK
U2 - 10.1117/12.924729
DO - 10.1117/12.924729
M3 - Conference contribution
SN - 9780819491473
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Ground-Based and Airborne Instrumentation for Astronomy IV
Y2 - 1 July 2012 through 6 July 2012
ER -