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Proceedings Paper

A high-efficiency near-infrared spectrograph for the Apache Point 3.5 m telescope
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Paper Abstract

A point-source spectrograph under development for the APO 3.5 m telescope offers resolving powers (R = λ/Δλ) of 1000 and 4000 in the near-IR (0.85-2.5 μm) while using wide slits matched to the seeing disk. The use of diamond-turned aluminum and crystal optics in a straightforward optical path coupled with a Hawaii-1RG detector provides excellent end-to-end efficiency of 32%-39% (including the telescope optics). Designed primarily for follow-up studies of brown dwarf and high redshift quasar candidates identified by wide-field surveys such as SDSS and 2MASS, this instrument will afford the 3.5 m telescope superb capability for a wide variety of science programs. In this paper we present the goals and design of the spectrograph and its expected performance.

Paper Details

Date Published: 30 September 2004
PDF: 12 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.552841
Show Author Affiliations
Alan Uomoto, Johns Hopkins Univ. (United States)
Stephen A. Smee, Johns Hopkins Univ. (United States)
Robert H. Barkhouser, Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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