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Proceedings Paper

Performance of the Apache Point Observatory Galactic Evolution Experiment (APOGEE) high-resolution near-infrared multi-object fiber spectrograph
Author(s): John C. Wilson; F. Hearty; M. F. Skrutskie; S. R. Majewski; R. Schiavon; D. Eisenstein; J. Gunn; J. Holtzman; D. Nidever; B. Gillespie; D. Weinberg; B. Blank; C. Henderson; S. Smee; R. Barkhouser; A. Harding; S. Hope; G. Fitzgerald; T. Stolberg; J. Arns; M. Nelson; S. Brunner; A. Burton; E. Walker; C. Lam; P. Maseman; J. Barr; F. Leger; L. Carey; N. MacDonald; G. Ebelke; S. Beland; T. Horne; E. Young; G. Rieke; M. Rieke; T. O'Brien; J. Crane; M. Carr; C. Harrison; R. Stoll; M. Vernieri; M. Shetrone; C. Allende-Prieto; J. Johnson; P. Frinchaboy; G. Zasowski; A. Garcia Perez; D. Bizyaev; K. Cunha; V. V. Smith; Sz. Meszaros; B. Zhao; M. Hayden; S. D. Chojnowski; B. Andrews; C. Loomis; R. Owen; M. Klaene; J. Brinkmann; F. Stauffer; D. Long; W. Jordan; D. Holder; F. Cope; T. Naugle; B. Pfaffenberger; D. Schlegel; M. Blanton; D. Muna; B. Weaver; S. Snedden; K. Pan; H. Brewington; E. Malanushenko; V. Malanushenko; A. Simmons; D. Oravetz; S. Mahadevan; S. Halverson
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Paper Abstract

The Apache Point Observatory Galactic Evolution Experiment (APOGEE) uses a dedicated 300-fiber, narrow-band near-infrared (1.51-1.7 μm), high resolution (R~22,500) spectrograph to survey approximately 100,000 giant stars across the Milky Way. This three-year survey, in operation since late-summer 2011 as part of the Sloan Digital Sky Survey III (SDSS III), will revolutionize our understanding of the kinematical and chemical enrichment histories of all Galactic stellar populations. We present the performance of the instrument from its first year in operation. The instrument is 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 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 had to be minimized, a large mosaic-VPH (290 mm x 475 mm elliptically-shaped recorded area), an f/1.4 six-element refractive camera featuring silicon and fused silica elements with diameters as large as 393 mm, three near-infrared detectors mounted in a 1 x 3 mosaic with sub-pixel translation capability, and all of these components housed within a custom, LN2-cooled, stainless steel vacuum cryostat with dimensions 1.4-m x 2.3-m x 1.3-m.

Paper Details

Date Published: 24 September 2012
PDF: 15 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84460H (24 September 2012); doi: 10.1117/12.927140
Show Author Affiliations
John C. Wilson, Univ. of Virginia (United States)
F. Hearty, Univ. of Virginia (United States)
M. F. Skrutskie, Univ. of Virginia (United States)
S. R. Majewski, Univ. of Virginia (United States)
R. Schiavon, Gemini Observatory (United States)
D. Eisenstein, Harvard-Smithsonian Ctr. for Astrophysics (United States)
J. Gunn, Princeton Univ. (United States)
J. Holtzman, New Mexico State Univ. (United States)
D. Nidever, Univ. of Virginia (United States)
B. Gillespie, Apache Point Observatory (United States)
D. Weinberg, The Ohio State Univ. (United States)
B. Blank, PulseRay (United States)
C. Henderson, PulseRay (United States)
S. Smee, The Johns Hopkins Univ. (United States)
R. Barkhouser, The Johns Hopkins Univ. (United States)
A. Harding, The Johns Hopkins Univ. (United States)
S. Hope, The Johns Hopkins Univ. (United States)
G. Fitzgerald, New England Optical Systems (United States)
T. Stolberg, New England Optical Systems (United States)
J. Arns, Kaiser Optical Systems, Inc. (United States)
M. Nelson, Univ. of Virginia (United States)
S. Brunner, Univ. of Virginia (United States)
A. Burton, Univ. of Virginia (United States)
E. Walker, Univ. of Virginia (United States)
C. Lam, Univ. of Virginia (United States)
P. Maseman, Steward Observatory, The Univ. of Arizona (United States)
J. Barr, Univ. of Virginia (United States)
F. Leger, Univ. of Washington (United States)
L. Carey, Univ. of Washington (United States)
N. MacDonald, Univ. of Washington (United States)
G. Ebelke, Apache Point Observatory (United States)
S. Beland, Univ. of Colorado at Boulder (United States)
T. Horne, College of Optical Sciences, The Univ. of Arizona (United States)
E. Young, NASA Ames Research Ctr. (United States)
G. Rieke, The Univ. of Arizona (United States)
M. Rieke, The Univ. of Arizona (United States)
T. O'Brien, The Ohio State Univ. (United States)
J. Crane, Carnegie Observatories (United States)
M. Carr, Princeton Univ. (United States)
C. Harrison, C Technologies, Inc. (United States)
R. Stoll, C Technologies, Inc. (United States)
M. Vernieri, C Technologies, Inc. (United States)
M. Shetrone, McDonald Observatory, The Univ. of Texas at Austin (United States)
C. Allende-Prieto, Instituto de Astrofísica de Canarias (Spain)
J. Johnson, The Ohio State Univ. (United States)
P. Frinchaboy, Texas Christian Univ. (United States)
G. Zasowski, Univ. of Virginia (United States)
A. Garcia Perez, Univ. of Virginia (United States)
D. Bizyaev, Apache Point Observatory (United States)
K. Cunha, Observatorio Nacional, Rio de Janeiro (Brazil)
National Optical Astronomy Observatories (United States)
Steward Observatory, Univ. of Arizona (United States)
V. V. Smith, National Optical Astronomy Observatories (United States)
Sz. Meszaros, Instituto de Astrofísica de Canarias (Spain)
B. Zhao, Univ. of Florida (United States)
M. Hayden, New Mexico State Univ. (United States)
S. D. Chojnowski, Univ. of Virginia (United States)
B. Andrews, The Ohio State Univ. (United States)
C. Loomis, Princeton Univ. (United States)
R. Owen, Univ. of Washington (United States)
M. Klaene, Apache Point Observatory (United States)
J. Brinkmann, Apache Point Observatory (United States)
F. Stauffer, Apache Point Observatory (United States)
D. Long, Apache Point Observatory (United States)
W. Jordan, Apache Point Observatory (United States)
D. Holder, Apache Point Observatory (United States)
F. Cope, Apache Point Observatory (United States)
T. Naugle, Apache Point Observatory (United States)
B. Pfaffenberger, Apache Point Observatory (United States)
D. Schlegel, Lawrence Berkeley National Lab. (United States)
M. Blanton, New York Univ. (United States)
D. Muna, New York Univ. (United States)
B. Weaver, New York Univ. (United States)
S. Snedden, Apache Point Observatory (United States)
K. Pan, Apache Point Observatory (United States)
H. Brewington, Apache Point Observatory (United States)
E. Malanushenko, Apache Point Observatory (United States)
V. Malanushenko, Apache Point Observatory (United States)
A. Simmons, Apache Point Observatory (United States)
D. Oravetz, Apache Point Observatory (United States)
S. Mahadevan, The Pennsylvania State Univ. (United States)
S. Halverson, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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