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Five-Hundred-Meter Aperture Spherical Telescope Project

  • B. Peng
  • R. Nan
  • Y. Su
  • Y. Qiu
  • L. Zhu
  • W. Zhu
Chapter

Abstract

A Five hundred meter Aperture Spherical Telescope (FAST) is proposed to be built in theunique karst area of southwest China, and will act, in a sense, as a prototype for the Square KilometerArray (SKA). It will be over twice as large as the Arecibo telescope coupled with much wider skycoverage. Some results from site surveys for such a SKA concept are briefly reported. Technically,FAST is not simply a copy of the existing Arecibo telescope but has rather a number of innovations.Firstly, the proposed main spherical reflector, by conforming to a paraboloid of revolution in real timethrough actuated active control, enables the realization of both wide bandwidth and full polarizationcapability while using standard feed design. Secondly, a feed support system which integrates optical,mechanical and electronic technologies will effectively reduce the cost of the support structure andcontrol system. Pre-research on FAST has become a key project in the CAS.

Keyword

Spherical telescope, karst depression, active reflector, cable supporting 

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References

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Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • B. Peng
    • 1
  • R. Nan
    • 1
  • Y. Su
    • 1
  • Y. Qiu
    • 1
  • L. Zhu
    • 1
  • W. Zhu
    • 1
  1. 1.Beijing Astronomical ObservatoryNational Astronomical Observatories, CASP.R. China

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