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Adverse effects in dual-star interferometry

Show simple item record Colavita, M. Mark 2014-12-13T00:09:35Z 2014-12-13T00:09:35Z 2008-06-02
dc.identifier.citation Astrometry and Imaging with the Very Large Telescope Interferometer, Keszthely, Hungary, June 2-13, 2008 en_US
dc.identifier.clearanceno 08-3125
dc.description.abstract Narrow-angle dual-star interferometric astrometry can provide very high accuracy in the presence of the Earth’s turbulent atmosphere. However, to exploit the high atmospherically-limited accuracy requires control of systematic errors in measurement of the interferometer baseline, internal OPDs, and fringe phase. In addition, as high photometric SNR is required, care must be taken to maximize throughput and coherence to obtain high accuracy on faint stars. This article reviews: the keys aspects of the dual-star approach and implementation; the main contributors to the systematic error budget; and the coherence terms in the photometric error budget. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008 en_US
dc.subject astrometry en_US
dc.subject phase referencing en_US
dc.title Adverse effects in dual-star interferometry en_US
dc.type Preprint en_US

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