Introduction to the 30m Ringy Interferometric Telescope

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

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pnaoc...3...64l&link_type=abstract

Astronomical Research and Technology. Publications of National Astronomical Observatories of China (ISSN 1672-7673), Vol. 3, No.

Other

Interferometric Imaging, Telescope, Ringy Aperture, High-Resolution Imaging

Scientific paper

In order to meet the demands of exploring extra-terrestrial planets, black holes and other astronomical utmost observation in the near infrared and optical regions, several extremely large telescopes (optical and infrared) with the aperture diameter larger than 30m and the long baseline optical synthetic aperture imaging arrays have been proposed. We advise to build a ringy shape telescope with a large primary mirror, and the telescope with such formation is called Ringy Interferometric Telescope - RIT. The form of the RIT is between the forms of a traditional ELT and an interferometric array. The paper also shows our research results about the ringy aperture. We propose to build a segmented RIT with outer diameter 30m and effective ring width 1m. Because of the whole spatial-frequency coverage characteristic, images photographed by RIT can have the same spatial resolution with a 30m full aperture telescope, need only some simple processes. The resolution (FWHM) of RIT can reach to 0.003 arcsec, its light-gathering area equivalent to that of a 10m full aperture telescope. Since its simple configuration, the cost of building the 30m RIT will not exceed that of a 10m segmented telescope a lot.

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