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      Control interface concepts for CHARA 6-telescope fringe tracking with CHAMP+MIRC

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          Abstract

          Cophasing six telescopes from the CHARA array, the CHARA-Michigan Phasetracker (CHAMP) and Michigan Infrared Combiner (MIRC) are pushing the frontiers of infrared long-baseline interferometric imaging in key scientific areas such as star- and planet-formation. Here we review our concepts and recent improvements on the CHAMP and MIRC control interfaces, which establish the communication to the real-time data recording & fringe tracking code, provide essential performance diagnostics, and assist the observer in the alignment and flux optimization procedure. For fringe detection and tracking with MIRC, we have developed a novel matrix approach, which provides predictions for the fringe positions based on cross-fringe information.

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          Journal
          14 December 2013
          Article
          10.1117/12.926559
          1312.4098

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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          Optical and Infrared Interferometry III. Proceedings of the SPIE, Volume 8445, article id. 84453A, 6 pp. (2012)
          6 pages, 4 figures, published in SPIE conference proceedings (http://dx.doi.org/10.1117/12.926559)
          astro-ph.IM

          Instrumentation & Methods for astrophysics

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