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Multiple object fiber optics spectrograph feed for the Hale telescopeThe preliminary design for a computer-controlled fiber-optics feed linking the 5-m Hale telescope at Palomar Observatory to the entrance slit of an astronomical spectrograph is presented. A 76-mm square field will be divided into ten strips containing two movable fibers each; the fibers can be moved by stepper-motor-driven lead screws to any position on the strip. The device is designed to allow the simultaneous spectrographic observation of many astronomical objects in a small angular field. A prototype feed using two fibers and manually commanded digital control is described in detail. Test observations of two bright O stars made in April, 1981 using the prototype with the Hale telescope are considered sufficiently positive to warrant construction of the 20-fiber feed, which would enhance the spectrographic-survey effectiveness of the telescope by a factor of ten.
Document ID
19830050795
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tubbs, E. F.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Goss, W. C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cohen, J. G.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Instrumentation in astronomy IV; Fourth Conference
Location: Tucson, AZ
Start Date: March 8, 1982
End Date: March 10, 1982
Accession Number
83A32013
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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