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Transit Telescope Designs Optimized for Multiple Object Spectroscopy with Fibers

Published online by Cambridge University Press:  12 April 2016

J.R.P. Angel
J.R.P. Angel*
Affiliation:
Steward Observatory, University of Arizona

Extract

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Instruments to study simultaneously the spectra of many objects in the field of view of a telescope can be made with the aid of fused silica fibers. The spectrograph at the 2.3m telescope of the University of Arizona has been modified for such operation, and is used routinely to investigate the dynamics of clusters of galaxies (Hill et al. 1981). The system presently in use locates up to 40 fibers in the telescope's Cassegrain focal plane, with the aid of plates previously drilled with holes in the configuration of the objects to be studied. Each field must be set up by hand by inserting fibers into a hole plate. An obvious improvement to this method would be to mount each fiber on a mechanical actuator, so new field configurations can be set up by remote control. It is our intention to make such a system with 32 fibers for the 2.3m telescope, over the next two years.

Type
Section II: Spectrographs and Spectrometers
Information
International Astronomical Union Colloquium , Volume 67: Instrumentation for Astronomy with Large Optical Telescopes , 1982 , pp. 117 - 122
Copyright
Copyright © Reidel 1982

References

Angel, J.R.P. 1980, Optical and Infrared Telescopes for the 1990’s, ed. Hewitt, A., Kitt Peak National Observatory, Tucson, p.263.Google Scholar
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Hill, J.M., Angel, J.R.P., Scott, J.S., Lindley, D. and Hintzen, P. 1980, Ap. J. (Letters), 242, L49.CrossRefGoogle Scholar
McGraw, J.T., Angel, J.R.P. and Sargent, T.A. 1980, SPIE Proc. 264, p.20.CrossRefGoogle Scholar
Nelson, J., Gabor, G., Hunt, L., Lubliner, J. and Mast, T. 1980, Applied Optics, 19, 2341.CrossRefGoogle Scholar