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Proceedings Paper

NIRSPEC: a near-infrared cross-dispersed echelle spectrograph for the Keck II telescope
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Paper Abstract

NIRSPEC is a recently funded, high-resolution, 1 - 5 micrometers cryogenic spectrograph for the Keck II telescope. The design of this new instrument is based on 1024 X 1024 InSb arrays and provides resolving powers of R equals 2,000 in non-cross-dispersed mode and R equals 25,000 in echelle mode with typically 5 to 6 orders on the array covering 60 - 90% of the selected waveband, J, H, K, or L, in a single observation. Later, even higher resolution can be achieved by using the proposed adaptive optics facility at Keck II and replacing some of the internal modules of NIRSPEC. This paper gives a brief description of the proposed design concepts, and a discussion of the detector and system constraints required to achieve the scientific goals of the instrument.

Paper Details

Date Published: 6 June 1995
PDF: 9 pages
Proc. SPIE 2475, Infrared Detectors and Instrumentation for Astronomy, (6 June 1995); doi: 10.1117/12.211272
Show Author Affiliations
Ian S. McLean, Univ. of California/Los Angeles (United States)
Eric E. Becklin, Univ. of California/Los Angeles (United States)
Donald Frank Figer, Univ. of California/Los Angeles (United States)
Samuel B. Larson, Univ. of California/Los Angeles (United States)
W. Timothy Liu, Univ. of California/Los Angeles (United States)
James R. Graham, Univ. of California/Berkeley (United States)


Published in SPIE Proceedings Vol. 2475:
Infrared Detectors and Instrumentation for Astronomy
Albert M. Fowler, Editor(s)

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