Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-26T04:40:17.246Z Has data issue: false hasContentIssue false
  • English
  • Français

High Resolution Imagery and Slitless Spectroscopy at the Prime Focus of the CFH Telescope

Published online by Cambridge University Press:  12 April 2016

J.C. Fouéré ,
G. Lelièvre ,
J.P. Lemonier ,
G.J. Odgers ,
E.H. Richardson  and
D.S. Salmon
J.C. Fouéré
Affiliation:
Canada-France-Hawaii Telescope Corporation, P.O. 1597, Kamuela, Hawaii 96743, U.S.A.
G. Lelièvre
Affiliation:
Canada-France-Hawaii Telescope Corporation, P.O. 1597, Kamuela, Hawaii 96743, U.S.A.
J.P. Lemonier
Affiliation:
Canada-France-Hawaii Telescope Corporation, P.O. 1597, Kamuela, Hawaii 96743, U.S.A.
G.J. Odgers
Affiliation:
Canada-France-Hawaii Telescope Corporation, P.O. 1597, Kamuela, Hawaii 96743, U.S.A. Dominion Astrophysical Observatory, Victoria, B.C.
E.H. Richardson
Affiliation:
Canada-France-Hawaii Telescope Corporation, P.O. 1597, Kamuela, Hawaii 96743, U.S.A. Dominion Astrophysical Observatory, Victoria, B.C.
D.S. Salmon
Affiliation:
Canada-France-Hawaii Telescope Corporation, P.O. 1597, Kamuela, Hawaii 96743, U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Direct photographic work over a large field (1°) at the prime focus of the classical Canada-France-Hawaii 3.6m telescope has been achieved with a very good image quality (less than 0.5” FWHM). The basic characteristics of the Wide-Field Corrector are presented. Our Wynne Corrector was in fact redesigned to have the last optical surface flat so that a transmission grating could be replicated thereon. This arrangement with only three optical elements locates the gratings at a maximum distance from the focal surface resulting in improved resolution over a one degree field. The C.F.H.T. grating-plus-lens, or “grens” has a brightness limit which is fainter than the Palomar Sky Survey.

Type
Section II: Spectrographs and Spectrometers
Information
International Astronomical Union Colloquium , Volume 67: Instrumentation for Astronomy with Large Optical Telescopes , 1982 , pp. 143 - 152
Copyright
Copyright © Reidel 1982

References

Bowen, I.S. and Vaughan, A.H. 1973, Pubi. astr. Soc. Pacific 85, p. 175.Google Scholar
Buchroeder, R.A. 1974, “A Raytrace Study of Prime Focus Grisms and the Like”, Report of Optical Sciences Center, University of Arizona, Tucson, Az.Google Scholar
Hoag, A.A. and Schroeder, D.J. 1970, Pubi. astr. Soc. Pacific 82, p. 1141.CrossRefGoogle Scholar
Nieto, J.L. and Leliévre, G. 1981a, Astronomical Photography 1981 (IAU meeting on photographic problems, Nice), ed. Heudier, J.-L. and Sim, M.E. p. 189.Google Scholar
Nieto, J.L. and Leliévre, G. 1981b, submitted to Astron. & Astrophys.Google Scholar
Richardson, E.H. 1979, Can. J. Phys. 57, p. 1365.CrossRefGoogle Scholar
Toraldo di Francia, G. 1949, Nuovo Cimento 6, p.1.Google Scholar
Wynne, C.E. 1974, Mon. Not. R. astr. Soc. 167, p. 189.CrossRefGoogle Scholar