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Proceedings Article

Giant segmented mirror telescope: a point design based on science drivers

[+] Author Affiliations
Stephen E. Strom, Larry M. Stepp, Brooke Gregory

AURA Inc. (USA)

Proc. SPIE 4840, Future Giant Telescopes, 116 (January 1, 2003); doi:10.1117/12.459863
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From Conference Volume 4840

  • Future Giant Telescopes
  • J. Roger P. Angel; Roberto Gilmozzi
  • Waikoloa, Hawai'i, United States | August 22, 2002

abstract

We describe a 'point design' for a 30m Giant Segmented Mirror Telescope (GSMT) aimed at meeting a set of initial science goals developed over a period of two years by working groups comprised of more than 60 astronomers. The paper summarizes these goals briefly, captures the top-level performance requirements that follow from them, and describes a plausible, first-cut technical solution developed as part of an overall systems-level analysis. The key features of the point design are: (1) a fast (f/1) primary; (2) an adaptive secondary that serves both to compensate for the effects of wind buffeting and as the first stage of three adaptive optics systems: (i) multi-conjugate AO; (ii) high-performance on-axis AO; (iii) ground-level seeing compensation; (3) a radio telescope structure; (4) multiple instrument ports (prime focus; Nasmyth foci; direct Cass); (5) an hierarchical control system comprising multiple active and adaptive elements.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Stephen E. Strom ; Larry M. Stepp and Brooke Gregory
"Giant segmented mirror telescope: a point design based on science drivers", Proc. SPIE 4840, Future Giant Telescopes, 116 (January 1, 2003); doi:10.1117/12.459863; http://dx.doi.org/10.1117/12.459863


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