Schuster Colloquium 11th Mar - Professor Stephen Padin

Prospects for far-infrared surveys

Enormous progress has been made in far-infrared detector arrays over the past two decades, and we will soon be able to build imaging sensors with 100,000 pixels. The new sensors, on a 30-50m diameter, wide-field telescope, at a good observing site, will provide unprecedented survey speed, giving enough sensitivity and sky coverage to find typical dusty galaxies at high redshift. New, far-infrared surveys will be able to measure the star formation rate for dusty galaxies over cosmic time. Such measurements are critical for understanding the origin of dusty galaxies and how they came to dominate during the peak epoch of star formation. Far-infrared surveys present significant technical challenges in detectors, readout electronics, wide-field telescopes, and coupling optics. I will explain how these challenges are being met, and describe prospects for far-infrared, multi-object spectrometers that will measure redshifts and physical conditions for large numbers of galaxies.

The Lecture will be delivered on Wednesday 11th March at 14.30 in the Rutherford Lecture Theatre, Schuster Building

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