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Proceedings Paper

High precision interferometer: MIRC with photometric channels
Author(s): Xiao Che; John D. Monnier; Scott Webster
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Paper 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.

Paper Details

Date Published: 21 July 2010
PDF: 9 pages
Proc. SPIE 7734, Optical and Infrared Interferometry II, 77342V (21 July 2010); doi: 10.1117/12.857848
Show Author Affiliations
Xiao Che, Univ. of Michigan (United States)
John D. Monnier, Univ. of Michigan (United States)
Scott Webster, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 7734:
Optical and Infrared Interferometry II
William C. Danchi; Françoise Delplancke; Jayadev K. Rajagopal, Editor(s)

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