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21 July 2010 High precision interferometer: MIRC with photometric channels
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Abstract
We have designed and constructed a prototype of Photometric Channels for Michigan Infrared Combiner (MIRC). Photometric Channels provide direct real-time measurements of fluxes from individual telescopes, improving the precision of visibility and close phase calibration. While this prototype has increased the MIRC data quality since the commissioning in August 2009, it leaves several issues unresolved, such as the changing polarization of starlight due to the CHARA beam train. We are planning to make an improvement of the prototype in conjunction with the six-beam combiner upgrade in the summer 2011.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiao Che, John D. Monnier, and Scott Webster "High precision interferometer: MIRC with photometric channels", Proc. SPIE 7734, Optical and Infrared Interferometry II, 77342V (21 July 2010); https://doi.org/10.1117/12.857848
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