The Sydney University Stellar Interferometer - I. The instrument

Details The Sydney University Stellar Interferometer - I. The instrument The Sydney University Stellar Interferometer - I. The instrument

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.303..773d&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 303, Issue 4, pp. 773-782.

Astronomy and Astrophysics

Astronomy

27

Atmospheric Effects, Instrumentation: Interferometers, Techniques: Interferometric, Stars: General

Scientific paper

The Sydney University Stellar Interferometer (SUSI) is a new long-baseline optical interferometer located in northern New South Wales, Australia. SUSI has been developed to tackle a range of problems in stellar astrophysics, and its design is based on a successful prototype instrument. In its initial configuration, observations are made with a single baseline selected from an array of fixed north-south baselines covering the range from 5 to 640 m. Small apertures, wavefront-tilt correction and rapid signal sampling are employed to overcome the effects of atmospheric turbulence, and optical path equality is maintained by a dynamic optical delay line. The planned astrophysical programmes, the resulting design criteria, the instrument and its current status are described.

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