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Indiana University Bloomington
 
Department of Astronomy
Spectrabot

SpectraBot is a new 50-inch automated telescope located 16 miles north of campus at the Morgan-Monroe Station of the Goethe Link Observatories.  It will be devoted to automated long-term monitoring (both CCD imaging and spectroscopy) of time-variable sources.  The telescope is now (2005) undergoing commissioning.

  • Latitude: +39 18 49 
  • Longitude: -86 26.4
  • Elevation: 245 m
  • Aperture: 1.25 m
  • Optical Configuration: f/8 Ritchey-Chretien
  • Optics: Gas-fusion lightweight blanks by Hextek, Inc. Optical figuring by Univ. of Arizona Optical Science Center (primary) and Brashear LP (secondary).
  • Plate Scale: 20"/mm
  • Detector: Liquid nitrogen cooled, thinned CCD, 1024x1024 pixels, each pixel 24 microns.
  • Filters: U,B,V,R,I
  • Spectrograph: Fiber-fed crossed-dispersed echelle with R = 5000.

The SpectraBot approach of combined unattended photometry and spectroscopy in the same telescope and instrument is described in:

"An Integrated Program for Automated CCD Photometry and Spectroscopy", Honeycutt, K. 1994, in Optical Astronomy from the Earth and Moon, ASP Conf Series Vol 55, ed. D.M. Pyper & J. Angione (San Francisco, ASP), 103

The technique that will be used for SpectraBot unattended spectroscopy is described in:

"Unattended H-alpha Spectroscopy of P Cygni and Beta Lyrae", Honeycutt, R.K., Turner, G.W., Vesper, D.N., Robertson, J.W. & White, J.C. 1993, PASP, 105, 426

The echelle spectrograph design is described in:

"Medium-resolution Echelle Spectrograph Design", Honeycutt, R.K.,Robertson, J.W., & Pier, J.R. 1998, in Proc. SPIE Conf. on Optical Astronomical Instrumentation, Vol. 3355, p. 696

 


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Last updated: 21 November 2005
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