3D spectrography at high spatial resolution. I. Concept and realization of the integral field spectrograph TIGER.
Abstract
The instrument TIGER is the first prototype of an integral field spectrograph using a microlenses array to perform bidimensional high spatial resolution spectrographic observations. It has been in operation at CFHT for a few years and has been successfully used on a large variety of astrophysical objects, ranging from the planet Mars to distant radio-galaxies and quasars. We discuss the fundamentals of the TIGER design and show that it is superior to long-slit spectrography for high spatial resolution purposes. The main characteristics of the instrument are given and some of the astrophysical results are briefly reviewed.
- Publication:
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Astronomy and Astrophysics Supplement Series
- Pub Date:
- October 1995
- Bibcode:
- 1995A&AS..113..347B
- Keywords:
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- INSTRUMENTATION: SPECTROGRAPHES