A simple active corrector for liquid mirror telescopes observing at large zenith angles

Details A simple active corrector for liquid mirror telescopes observing at large zenith angles A simple active corrector for liquid mirror telescopes observing at large zenith angles

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...285..344w&link_type=abstract

Astronomy and Astrophysics 285, 344-353 (1994)

Astronomy and Astrophysics

Astrophysics

8

Telescopes, Instrumentation: Miscellaneous

Scientific paper

We investigate a corrector system, having a single spherical active secondary, that compensates the large aberrations of a liquid mirror observing at large angles from the zenith. This simple system gives subarcsecond images in small subregions within a 20 degree field. Although the performance is insufficient for imagery, it would be useful for high-resolution spectroscopy of compact objects. Adding adaptive optics to the system would greatly improve its performance, extending its accessible field and rendering it useful for high-resolution imagery.

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