A Dedicated Echelle Spectrometer for the Anglo-Australian Telescope

Details A Dedicated Echelle Spectrometer for the Anglo-Australian Telescope A Dedicated Echelle Spectrometer for the Anglo-Australian Telescope

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.210..463m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 210, NO.2, P.463, 1984

Astronomy and Astrophysics

Astronomy

147

Scientific paper

An echelle spectrometer has been manufactured for use combined with the image photon counting system (IPCS) on the Anglo-Australian Telescope. This instrument employs a collimator/camera lens and in its principal configuration uses broad interference filters to isolate separate echelle orders. Very long multi-slits or multi-image masks can cover large areas of extended sources to obtain profiles of single emission lines, or interstellar absorption lines, from many spatial elements simultaneously. Provision is made for a grism to be inserted to achieve cross-dispersion with a short slit or, when rotated by 90°, produce a simple low dispersion spectrum of the source. Furthermore, the insertion of a plane mirror produces a direct image of the field when a clear area is driven into position to replace the multi-slits. All complex operations are remotely controlled with a BBC microcomputer.

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