Future of filled aperture telescopes: is a 100-m feasible?

  title={Future of filled aperture telescopes: is a 100-m feasible?},
  author={Roberto Gilmozzi and Bernard A. Delabre and Philippe Dierickx and Norbert N. Hubin and Franz Koch and Guy J. Monnet and Marco Quattri and François Rigaut and RAYMOND N. Wilson},
  booktitle={Astronomical Telescopes and Instrumentation},
We explore the scientific case and the conceptual feasibility of giant filled aperture telescopes, in the light of science goals needing an order of magnitude increase in aperture size, and investigate the requirements (and challenges) these imply for possible technical options in the case of a 100 m telescope. The 100-m f/6.4 telescope optical concept is of a four mirror design with segmented, spherical primary and secondary mirrors, and 8-m class aspheric tertiary and quaternary mirrors… 
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