A Special Configuration for Future Giant Telescope

Details A Special Configuration for Future Giant Telescope A Special Configuration for Future Giant Telescope

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004acasn..45..105s&link_type=abstract

Acta Astronomica Sinica, vol. 45, no.1, p. 105-114

Physics

Optics

1

Telescope, Instrumentation: Adaptive Optics, Instrumentation: High Angular Resolution, Future Giant Telescope, Extremely Large Telescope

Scientific paper

A special configuration of Future Giant Telescope is proposed. It is a 30m telescope with segmented primary mirror and alt-azimuth mounting. The aspherical primary mirror with f-ratio 1.2 consists of 1095 partial annular sub-mirrors. The optical system includes Nasmyth system, coude system and a wide field of view FOV system. A new type of Nasmyth system which consists of four mirrors is put forward. In such a Nasmyth system the diffraction-limited image can be obtained in about 10 arcmin field of view which is much larger than that obtained by traditional Nasmyth system. Several diffraction-limited observations with narrow FOV can be operated simultaneously in such a large FOV. By using active optics method to change the surface shape, tip, tilt and piston of sub-mirrors to get a new aspherical surface of the primary , the excellent image qualities can be obtained for coude system and wide field of view system. In the wide field of view system, the diameter of FOV is 25', the focal surface is only slightly curved and the atmospheric dispersion could be corrected. The tolerances of the surface shape and position for sub-mirrors, the telescope mounting and structure are also discussed. The creations in this configuration have general meaning for future giant telescopes.

Affiliated with

Also associated with

No associations

Rating

A Special Configuration for Future Giant Telescope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Special Configuration for Future Giant Telescope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Special Configuration for Future Giant Telescope will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1601173