IRMA - A prototype infrared Michelson stellar interferometer

Details IRMA - A prototype infrared Michelson stellar interferometer IRMA - A prototype infrared Michelson stellar interferometer

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasp..105..610d&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 105, no. 688, p. 610-615.

Computer Science

Performance

14

Astronomical Interferometry, Infrared Interferometers, Michelson Interferometers, Red Giant Stars, Stellar Magnitude, Supergiant Stars, Phase Error, Software Tools

Scientific paper

We describe a prototype near-infrared Michelson stellar interferometer used to estimate stellar diameters by measuring visibility amplitudes. In particular, details are given for the performance of the device, including the stability, limiting sensitivity, and sources of errors in the visibility amplitudes. We compare the results for stars measured in common with the French interferometer at CERGA. An improved diameter for the red supergiant Alpha Herculis is also presented.

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