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Low-Resolution Imaging Spectrometer for the Keck Telescope

Oke, J. Beverly and Cohen, Judith G. and Carr, Michael M. and Dingiziam, Arsham and Harris, Frederick H. and Lucinio, Richard and Labrecque, S. and Schaal, W. A. and Southard, S., Jr. (1994) Low-Resolution Imaging Spectrometer for the Keck Telescope. In: Instrumentation in Astronomy VIII. Proceedings of SPIE. No.2198. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 178-184. ISBN 0-8194-1493-X. https://resolver.caltech.edu/CaltechAUTHORS:20161019-074955837

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Abstract

The Low Resolution Imaging Spectrometer is designed for use at the Cassegrain focus of the Keck 10-m telescope. It provides the capability of acquiring low resolution (R equals 1000 to 5000) digital spectra, as well as 6 X 8 arc-minute moderately high spatial resolution (4.65 pixels/arc-second) direct images. Spectroscopy can be carried out with single slits which are 3 arc-minutes long. In addition punched multi-slits can also be employed which allow for the acquisition of at least forty spectra simultaneously. Since the instrument is designed to be as efficient as possible, it is a double spectrograph, with a dichroic splitting the blue and red light into separate optical paths after the collimator. Only the red side has been constructed thus far. With a 2048 by 2048 thinned Tektronix CCD as the detector the total efficiency of the red side at the peak of the grating blaze is predicted to be nearly 40%. Results of the commissioning observing runs will be described.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.176745DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=959767PublisherArticle
ORCID:
AuthorORCID
Cohen, Judith G.0000-0002-8039-4673
Additional Information:© 1994 The International Society for Optical Engineering, SPIE. This is one phase of work at the W.M. Keck Observatory, jointly operated by the California Institute of Technology and the University of California. We are greatful to Mr. Howard Keck for his magnificent gift in support of astronomy.
Funders:
Funding AgencyGrant Number
Howard KeckUNSPECIFIED
Series Name:Proceedings of SPIE
Issue or Number:2198
Record Number:CaltechAUTHORS:20161019-074955837
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161019-074955837
Official Citation:J. Beverly Oke ; Judith G. Cohen ; Michael M. Carr ; Arsham Dingiziam ; Frederick H. Harris ; Richard Lucinio ; S. Labrecque ; W. A. Schaal ; S. Southard, Jr.; Low-Resolution Imaging Spectrometer for the Keck Telescope. Proc. SPIE 2198, Instrumentation in Astronomy VIII, 178 (June 1, 1994); doi:10.1117/12.176745.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71251
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:19 Oct 2016 16:20
Last Modified:03 Oct 2019 16:05

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