The Apache Point Observatory Galactic Evolution Experiment (APOGEE) high-resolution near-infrared multi-object fiber spectrograph

John C. Wilson; Fred Hearty; Michael F. Skrutskie; Steven Majewski; Ricardo Schiavon; Daniel Eisenstein; Jim Gunn; Basil Blank; Chuck Henderson; Stephen Smee; Robert Barkhouser; Al Harding; Greg Fitzgerald; Todd Stolberg; Jim Arns; Matt Nelson; Sophia Brunner; Adam Burton; Eric Walker; Charles Lam; Paul Maseman; Jim Barr; French Leger; Larry Carey; Nick MacDonald; Todd Horne; Erick Young; George Rieke; Marcia Rieke; Tom O'Brien; Steve Hope; John Krakula; Jeff Crane; Bo Zhao; Mike Carr; Craig Harrison; Robert Stoll; Mary Ann Vernieri; Jon Holtzman; Matt Shetrone; Carlos Allende-Prieto; Jennifer Johnson; Peter Frinchaboy; Gail Zasowski; Dmitry Bizyaev; Bruce Gillespie; David Weinberg

doi:10.1117/12.856708

15 July 2010 The Apache Point Observatory Galactic Evolution Experiment (APOGEE) high-resolution near-infrared multi-object fiber spectrograph

John C. Wilson, Fred Hearty, Michael F. Skrutskie, Steven Majewski, Ricardo Schiavon, Daniel Eisenstein, Jim Gunn, Basil Blank, Chuck Henderson, Stephen Smee, Robert Barkhouser, Al Harding, Greg Fitzgerald, Todd Stolberg, Jim Arns, Matt Nelson, Sophia Brunner, Adam Burton, Eric Walker, Charles Lam, Paul Maseman, Jim Barr, French Leger, Larry Carey, Nick MacDonald, Todd Horne, Erick Young, George Rieke, Marcia Rieke, Tom O'Brien, Steve Hope, John Krakula, Jeff Crane, Bo Zhao, Mike Carr, Craig Harrison, Robert Stoll, Mary Ann Vernieri, Jon Holtzman, Matt Shetrone, Carlos Allende-Prieto, Jennifer Johnson, Peter Frinchaboy, Gail Zasowski, Dmitry Bizyaev, Bruce Gillespie, David Weinberg

Author Affiliations +

Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 77351C (2010) https://doi.org/10.1117/12.856708
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The Apache Point Observatory Galactic Evolution Experiment (APOGEE) will use a dedicated 300-fiber, narrow-band (1.5-1.7 micron), high resolution (R~30,000), near-infrared spectrograph to survey approximately 100,000 giant stars across the Milky Way. This survey, conducted as part of the Sloan Digital Sky Survey III (SDSS III), will revolutionize our understanding of kinematical and chemical enrichment histories of all Galactic stellar populations. The instrument, currently in fabrication, will be housed in a separate building adjacent to the 2.5 m SDSS telescope and fed light via approximately 45-meter fiber runs from the telescope. The instrument design includes numerous technological challenges and innovations including a gang connector that allows simultaneous connection of all fibers with a single plug to a telescope cartridge that positions the fibers on the sky, numerous places in the fiber train in which focal ratio degradation must be minimized, a large (290 mm x 475 mm elliptically-shaped recorded area) mosaic-VPH, an f/1.4 sixelement refractive camera featuring silicon and fused silica elements with diameters as large as 393 mm, three near-within a custom, LN2-cooled, stainless steel vacuum cryostat with dimensions 1.4 m x 2.3 m x 1.3 m.

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John C. Wilson, Fred Hearty, Michael F. Skrutskie, Steven Majewski, Ricardo Schiavon, Daniel Eisenstein, Jim Gunn, Basil Blank, Chuck Henderson, Stephen Smee, Robert Barkhouser, Al Harding, Greg Fitzgerald, Todd Stolberg, Jim Arns, Matt Nelson, Sophia Brunner, Adam Burton, Eric Walker, Charles Lam, Paul Maseman, Jim Barr, French Leger, Larry Carey, Nick MacDonald, Todd Horne, Erick Young, George Rieke, Marcia Rieke, Tom O'Brien, Steve Hope, John Krakula, Jeff Crane, Bo Zhao, Mike Carr, Craig Harrison, Robert Stoll, Mary Ann Vernieri, Jon Holtzman, Matt Shetrone, Carlos Allende-Prieto, Jennifer Johnson, Peter Frinchaboy, Gail Zasowski, Dmitry Bizyaev, Bruce Gillespie, and David Weinberg "The Apache Point Observatory Galactic Evolution Experiment (APOGEE) high-resolution near-infrared multi-object fiber spectrograph", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77351C (15 July 2010); https://doi.org/10.1117/12.856708

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