Integrated approach to the design of a 4-m survey telescope (VISTA) and its instrumentation

Eli Ettedgui-Atad; Will Sutherland; Sue Worswick; Stefano Stanghellini; Brett A. Patterson; Richard Bennett; David M. Henry; Brian Stobie; Simon C. Craig

doi:10.1117/12.489820

30 July 2002 Integrated approach to the design of a 4-m survey telescope (VISTA) and its instrumentation

Eli Ettedgui-Atad, Will Sutherland, Sue Worswick, Stefano Stanghellini, Brett A. Patterson, Richard Bennett, David M. Henry, Brian Stobie, Simon C. Craig

Author Affiliations +

Proceedings Volume 4757, Integrated Modeling of Telescopes; (2002) https://doi.org/10.1117/12.489820
Event: Workshop on Integrated Modeling of Telescopes, 2002, Lund, Sweden

Abstract

The design of VISTA (Visible and Infrared Survey Telescope for Astronomy) requires close interaction between the science requirements, the optical and active mechanical design of the telescope and its instrumentation with the wavefront sensing. The optical design is based on an integrated approach of the telescope with tow separate cameras, one working in the IR waveband and the other working in the Visible waveband. The large field of view (2 degrees in the visible and 1.65 degrees in the IR), the seeing-limited resolution required (FWHM of 0.4 arcsec for the visible and 0.5 arcsec for the IR), the technological advance in active telescopes and large IR arrays and the f/1 quasi Ritchey-Chretien telescope design, makes this telescope a very powerful tool in performing high resolution and large astronomical surveys. A system analysis, modeling the various sources of errors such as optical aberrations, surface errors, control errors, environmental effects and detector effects is presented in this paper.

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Eli Ettedgui-Atad, Will Sutherland, Sue Worswick, Stefano Stanghellini, Brett A. Patterson, Richard Bennett, David M. Henry, Brian Stobie, and Simon C. Craig "Integrated approach to the design of a 4-m survey telescope (VISTA) and its instrumentation", Proc. SPIE 4757, Integrated Modeling of Telescopes, (30 July 2002); https://doi.org/10.1117/12.489820

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KEYWORDS

Telescopes

Infrared telescopes

Image quality

Mirrors

Mathematical modeling

Infrared cameras

Error analysis

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