Towards a Square-Kilometer Optical Telescope: The Potential of Intensity Interferometry

Details Towards a Square-Kilometer Optical Telescope: The Potential of Intensity Interferometry Towards a Square-Kilometer Optical Telescope: The Potential of Intensity Interferometry

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010rmxac..38...17d&link_type=abstract

The Interferometric View on Hot Stars (Eds. Th. Rivinius & M. Curé) Revista Mexicana de Astronomía y Astrofísica (Serie de Confe

Physics

Optics

Instrumentation: High Angular Resolution, Instrumentation: Interferometers, Stars: Individual

Scientific paper

Kilometric-scale optical baselines are required for imaging features across stellar disks. Ground-based intensity interferometry is insensitive to both atmospheric turbulence and to imperfections in telescope optics, permitting long-baseline observations even at short optical wavelengths. Its required large flux collectors are becoming available as arrays of atmospheric Cherenkov telescopes set up for studying energetic gamma rays. High-speed detectors and digital signal handling enable very many baselines to be synthesized in software between numerous pairs of telescopes in a digital revival of a technique once pioneered by Hanbury Brown & Twiss.

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