Mexican infrared optical new technology telescope (TIM) project

Details Mexican infrared optical new technology telescope (TIM) project Mexican infrared optical new technology telescope (TIM) project

Aug 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3352...44s&link_type=abstract

Proc. SPIE Vol. 3352, p. 44-51, Advanced Technology Optical/IR Telescopes VI, Larry M. Stepp; Ed.

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the Mexican Infrared-Optical New Technology Telescope Project (TIM). The design and construction of a 7.8 m telescope, which will operate at the Observatorio Astronomico Nacional in San Pedro Martir, B.C. (Mexico), are described. The site has been selected based on seeing and sky condition measurements taken for several years. The f/1.5 primary mirror consists of 19 hexagonal off-axis parabolic Zerodur segments. The telescope structure will be alt-az, lightweight, low cost, and high stiffness. It will be supported by hydrostatic bearings. The single secondary will complement a Ritchey-Chretien f/15 design, delivering to Cassegrain focus instrumentation. The telescope will be infrared optimized to allow observations ranging from 0.3 to 20 microns. The TIM mirror cell provides an independent and full active support system for each segment, in order to achieve both, phasing capability and very high quality imaging (0.25 arcsec).

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