A versatile fiber coupled ccd/echelle spectrograph system

Lawrence W. Ramsey, David P. Huenemoerder

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We have developed a versatile echelle spectrograph capable of moderate to high resolution precision spectroscopy. This highly stable instrument is in a temperature and humidity controlled room and is coupled to our 1.6 meter telescope via an optical fiber. Moderate resolution (X/AX = 10000) spectra with near total spectral coverage from 400-900 nm are done at a Quasi-Littrow focus with no anamorphic magnification. A 200 mm f/2 camera focuses thirty-four orders of prism cross dispersed spectra onto a RCA SID501 CCD. A simple grating tilt can switch the beam to a cross-dispersing grating and long focus cameras allowing resolutions up to 80000. The high resolution beam has a more typical geometry with anamorphic magnification greater than one. Either small fibers or an image slicer can be used to obtain the highest resolution spectra. Observations conducted since Winter 1985 have shown the system to have excellent photometric and radial velocity characteristics; it is especially suited to long term, high signal-to-noise monitoring programs.

Original languageEnglish (US)
Pages (from-to)282-290
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume627
DOIs
StatePublished - Oct 13 1986

Fingerprint

Echelle
Optical fiber coupling
Spectrographs
Spectrograph
spectrographs
High Resolution
Cameras
Fiber
magnification
Gratings
fibers
high resolution
Prisms
Camera
cameras
Charge coupled devices
Telescopes
gratings
Optical fibers
Radial velocity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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A versatile fiber coupled ccd/echelle spectrograph system. / Ramsey, Lawrence W.; Huenemoerder, David P.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 627, 13.10.1986, p. 282-290.

Research output: Contribution to journalArticle

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