The Magdalena Ridge Interferometer: Telescope Delivery to Laboratory Fringe Measurements

Computer Science – Performance

Scientific paper

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Scientific paper

This report focuses on recent developments at the Magdalena Ridge Observatory Interferometer (MROI) in three major areas: 1) telescope delivery and array infrastructure construction, 2) installation of the first vacuum delay line and 3) laboratory fringe measurements with the first fringe beam combiner. Construction of the telescope foundations and utilities began in August of 2010 and will be complete in September of 2011 for delivery of the first of ten telescopes. The MROI now has the longest (100m) evacuated fast delay line in the world. Initial performance tests that began in November of 2010 are reported here. First broadband fringe measurements have been recorded in the laboratory with the fringe tracking beam combiner. These measurements demonstrate high optical quality, and visibilities matching the predicted values for its architecture type.

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