Introduction to the 30m Ring Interferometric Telescope

Details Introduction to the 30m Ring Interferometric Telescope Introduction to the 30m Ring Interferometric Telescope

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spie.6267e..84l&link_type=abstract

Ground-based and Airborne Telescopes. Edited by Stepp, Larry M.. Proceedings of the SPIE, Volume 6267, pp. 62672L (2006).

Astronomy and Astrophysics

Astronomy

1

Scientific paper

For the demand of astronomical limitation observations, such as exploring extra-terrestrial planets, black hole accretion disk and jet in the near-infrared and optical wave band, extremely large telescopes (optical and infrared) have become the principal ground-based astronomical instrumentation. With the maturation of interferometric imaging theory, the borderline between new generation ground-based extremely large telescope and interferometric array for aperture synthesis imaging is increasingly going blurring and the only differences in their technical methods and characteristics are also gradually disappearing. This report introduces some fruitful study results on the next generation ground-based extremely large telescopes, especially the results about the PSF and MTF of the telescope system and the interferometric imaging reconstruction arithmetic. The results not only can be used in the design of large interferometric array for aperture synthesis imaging but also adaptable to the design of single aperture telescope. On the foundation of our results, we bring forward a new concept ground-based extremely large telescope - 30m Ring Interferometric Telescope (30mRIT). It has the direct imaging ability and resolution like single aperture telescope, and it also can image with high resolution like the aperture synthesis imaging mode. The 30mRIT project is remarkably different from the conventional ground-base telescopes and its pivotal techniques have got the support of CAS and China NSF.

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