The multi-object double spectrographs for the Large Binocular Telescope

R. W. Pogge; B. Atwood; S. R. Belville; D. F. Brewer; P. L. Byard; D. L. DePoy; M. A. Derwent; J. Eastwood; R. Gonzalez; A. Krygier; J. R. Marshall; P. Martini; J. A. Mason; T. P. O'Brien; P. S. Osmer; D. P. Pappalardo; D. P. Steinbrecher; E. J. Teiga; D. H. Weinberg

doi:10.1117/12.670704

27 June 2006 The multi-object double spectrographs for the Large Binocular Telescope

R. W. Pogge, B. Atwood, S. R. Belville, D. F. Brewer, P. L. Byard, D. L. DePoy, M. A. Derwent, J. Eastwood, R. Gonzalez, A. Krygier, J. R. Marshall, P. Martini, J. A. Mason, T. P. O'Brien, P. S. Osmer, D. P. Pappalardo, D. P. Steinbrecher, E. J. Teiga, D. H. Weinberg

Author Affiliations +

Proceedings Volume 6269, Ground-based and Airborne Instrumentation for Astronomy; 62690I (2006) https://doi.org/10.1117/12.670704
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

Ohio State is building two identical Multi-Object Double Spectrographs (MODS), one for each of the f/15 Gregorian foci of the Large Binocular Telescope (LBT). Each MODS is a high-throughput optical low- to medium-resolution CCD spectrometer operating in the 320-1000nm range with a 6.5-arcminute field-of-view. A dichroic distributes the science beam into separately-optimized red and blue channels that provide for direct imaging and up to 3 spectroscopic modes per channel. The identical MODS instruments may be operated together with digital data combination as a single instrument giving the LBT an effective aperture of 11.8-meter, or separately configured to flexibly use the twin 8.4-meter apertures. This paper describes progress on the integration and testing of MODS1, and plans for the deployment of MODS2 by the end of 2008 at the LBT.

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R. W. Pogge, B. Atwood, S. R. Belville, D. F. Brewer, P. L. Byard, D. L. DePoy, M. A. Derwent, J. Eastwood, R. Gonzalez, A. Krygier, J. R. Marshall, P. Martini, J. A. Mason, T. P. O'Brien, P. S. Osmer, D. P. Pappalardo, D. P. Steinbrecher, E. J. Teiga, and D. H. Weinberg "The multi-object double spectrographs for the Large Binocular Telescope", Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62690I (27 June 2006); https://doi.org/10.1117/12.670704

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