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Moderate Resolution Spectroscopy For The Space Infrared Telescope Facility (SIRTF)

Houck, J. R. and Beckwith, S. V. W. and Herter, T. and Salpeter, E. E. and Forrest, W. J. and Matthews, K. and Soifer, B. T. and Watson, D. and Roellig, T. and Weedman, D. and Bauman, L. R. and Downey, C. H. and Reitsema, H. J. and Strecker, D. W. (1986) Moderate Resolution Spectroscopy For The Space Infrared Telescope Facility (SIRTF). In: Cryogenic Optical Systems and Instruments II. Proceedings of SPIE. No.619. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 69-72. ISBN 9780892526543. https://resolver.caltech.edu/CaltechAUTHORS:20200318-082248223

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Abstract

A conceptual design for an infrared spectrometer capable of both low resolution (λ/Δ-λ = 50; 2.5-200 microns) and moderate resolution (1000; 4-200 microns) and moderate resolution (1000; 4-200 microns) has been developed. This facility instrument will permit the spectroscopic study in the infrared of objects ranging from within the solar system to distant galaxies. The spectroscopic capability provided by this instrument for SIRTF will give astronomers orders of magnitude greater sensitivity for the study of faint objects than had been previously available. The low resolution mode will enable detailed studies of the continuum radiation. The moderate resolution mode of the instrument will permit studies of a wide range of problems, from the infrared spectral signatures of small outer solar system bodies such as Pluto and the satellites of the giant planets, to investigations of more luminous active galaxies and QS0s at substantially greater distances. A simple design concept has been developed for the spectrometer which supports the science investigation with practical cryogenic engineering. Operational flexibility is preserved with a minimum number of mechanisms. The five modules share a common aperture, and all gratings share a single scan mechanism. High reliability is achieved through use of flight-proven hardware concepts and redundancy. The design controls the heat load into the SIRTF cryogen, with all heat sources other than the detectors operating at 7K and isolated from the 4K cold station. Two-dimensional area detector arrays are used in the 2.5-120μm bands to simultaneously monitor adjacent regions in extended objects and to measure the background near point sources.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.966640DOIArticle
ORCID:
AuthorORCID
Herter, T.0000-0002-3856-8385
Additional Information:© 1986 Society of Photo-Optical Instrumentation Engineers (SPIE). This work has been supported by NASA Grant NAG 2-317.
Group:Infrared Processing and Analysis Center (IPAC)
Funders:
Funding AgencyGrant Number
NASANAG 2-317
Series Name:Proceedings of SPIE
Issue or Number:619
Record Number:CaltechAUTHORS:20200318-082248223
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200318-082248223
Official Citation:J. R. Houck, S. V. W. Beckwith, T. Herter, E. E. Salpeter, W. J. Forrest, K. Matthews, B. T. Soifer, D. Watson, T. Roellig, D. Weedman, L. R. Bauman, C. H. Downey, H. J. Reitsema, and D. W. Strecker "Moderate Resolution Spectroscopy For The Space Infrared Telescope Facility (SIRTF)", Proc. SPIE 0619, Cryogenic Optical Systems and Instruments II, (18 July 1986); https://doi.org/10.1117/12.966640
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101958
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Mar 2020 17:03
Last Modified:18 Mar 2020 17:03

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