Stellar intensity interferometry: Experimental steps toward long-baseline observations

Details Stellar intensity interferometry: Experimental steps toward long-baseline observations Stellar intensity interferometry: Experimental steps toward long-baseline observations

2010-09-28

arxiv.org/abs/1009.5585v1

Proc. SPIE vol. 7734, 7734-48 (2010)

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

12 pages, 3 figure

Scientific paper

Experiments are in progress to prepare for intensity interferometry with arrays of air Cherenkov telescopes. At the Bonneville Seabase site, near Salt Lake City, a testbed observatory has been set up with two 3-m air Cherenkov telescopes on a 23-m baseline. Cameras are being constructed, with control electronics for either off- or online analysis of the data. At the Lund Observatory (Sweden), in Technion (Israel) and at the University of Utah (USA), laboratory intensity interferometers simulating stellar observations have been set up and experiments are in progress, using various analog and digital correlators, reaching 1.4 ns time resolution, to analyze signals from pairs of laboratory telescopes.

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