Image of Alice in Wonderland at the Mad Hatter's tea party You are cordially invited to afternoon tea and biscuits wine and chocolate

Astronomy Tea Talks at Caltech

Mondays, Hameetman auditorium (Cahill)
Tea:  4.00pm
Talk: 4.15pm

Organized by:

2010 - 2011 season:
11 April 2011 Stephen Padin (Caltech)

'How to build CCAT'

CCAT will be a 25m diameter submillimeter-wave telescope, located at an altitude of 5600 m on Cerro Chajnantor in northern Chile. CCAT will emphasize wide-field surveys for galaxies out to z~10, with a goal of measuring the mass function across cosmic time to gain an understanding of how galaxies were assembled. CCAT will operate in the 0.2-2 mm wavelength range, with high efficiency even at the shorter wavelengths. This requires wavefront errors <25 um rms and pointing errors <0.3" rms, which are challenging given the inexpensive materials typically used in radio telescopes. CCAT will be equipped with wide-field, multi-color cameras and multi-object spectrometers, with up to 1 degree field of view. The large field of view will allow us to take full advantage ongoing rapid advances in submillimeter detectors. In this talk, I will describe the technology that is needed to build CCAT.

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Last modified on 20th Jul 2011 by Dominik A. Riechers.  

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