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T A U M O K—Multi-Object Spectroscopy with the Tautenburg Schmidt Telescope

Published online by Cambridge University Press:  12 April 2016

S. Marx
Affiliation:
Thüringer Landesstemwarte, D-07778 Tautenburg, F. R. Germany
H. Lehmann
Affiliation:
Thüringer Landesstemwarte, D-07778 Tautenburg, F. R. Germany
M. Pluto
Affiliation:
Thüringer Landesstemwarte, D-07778 Tautenburg, F. R. Germany
R. Ziener
Affiliation:
Thüringer Landesstemwarte, D-07778 Tautenburg, F. R. Germany

Extract

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A multi-object camera for the Tautenburg Schmidt Telescope (134/200/400) was developed and constructed in cooperation with the Max-Planck-Institut für Astronomie in Heidelberg and the Thüringer Landesstemwarte Tautenburg. The experience with the “Spaltspinne” for the 3.5 m Telescope of the Calar Alto Observatory (Pitz 1993) was the foundation of TAUMOK. The technical concept was given by Pitz et al. (1993).

Thirty six rods controlled by a processor can be moved in an area with a diameter of 16 cm. This area covers a field of 2.3° in the focal plane which is flattened by a plano-convex lens. Each of 34 rods carry two fibres with diameters of 100/µm with one fibre for the object and another for the background light. The fibres have a length of 7 m and their opposite faces form the entrance slit of a spectrograph. At present, reciprocal dispersions of 3.4, 10, 20 and 40 nm/mm can be realized. A CCD camera with a chip-size of 1152 × 770 pixels (pixel size 22.5/µm) is used as detector. Two of the 36 rods are equipped with image bundles for telescope guiding.

Type
III. The Use of CCDs in Schmidt Telescopes
Copyright
Copyright © Astronomical Society of the Pacific 1995

References

Pitz, E., 1993, In Fiber Optics in Astronomy II, ASP Conf. Ser. 37, Gray, P.M., ed., p. 20 Google Scholar
Pitz, E., Lorenz, H. & Elsässer, H., 1993, In Fiber Optics in Astronomy II, ASP Conf. Ser. 37, Gray, P.M., ed., p. 166 Google Scholar