New beam-combination techniques at IOTA

Wesley A. Traub; Angela Ahearn; Nathaniel P. Carleton; Jean-Philippe Berger; Michael K. Brewer; Karl-Heinz Hofmann; Pierre Y. Kern; Marc G. Lacasse; Fabien Malbet; Rafael Millan-Gabet; John D. Monnier; Keiichi Ohnaka; Ettore Pedretti; Sam Ragland; F. Peter Schloerb; Kamal Souccar; Gerd Weigelt

doi:10.1117/12.459718

21 February 2003 New beam-combination Techniques at IOTA

Wesley A. Traub, Angela Ahearn, Nathaniel P. Carleton, Jean-Philippe Berger, Michael K. Brewer, Karl-Heinz Hofmann, Pierre Y. Kern, Marc G. Lacasse, Fabien Malbet, Rafael Millan-Gabet, John D. Monnier, Keiichi Ohnaka, Ettore Pedretti, Sam Ragland, F. Peter Schloerb, Kamal Souccar, Gerd Weigelt

Author Affiliations +

Proceedings Volume 4838, Interferometry for Optical Astronomy II; (2003) https://doi.org/10.1117/12.459718
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

New beam combination techniques, using two and three telescopes, have been the focus of activity at IOTA during the past two years since our last update. In particular, we have added a third telescope, made closure-phase measurements, demonstrated two- and three-beam combination with integrated optics combiners, demonstrated two-beam combination with an asymmetric coupler, and made simultaneous JHK visibility measurements with an image-plane combiner.

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Wesley A. Traub, Angela Ahearn, Nathaniel P. Carleton, Jean-Philippe Berger, Michael K. Brewer, Karl-Heinz Hofmann, Pierre Y. Kern, Marc G. Lacasse, Fabien Malbet, Rafael Millan-Gabet, John D. Monnier, Keiichi Ohnaka, Ettore Pedretti, Sam Ragland, F. Peter Schloerb, Kamal Souccar, and Gerd Weigelt "New beam-combination Techniques at IOTA", Proc. SPIE 4838, Interferometry for Optical Astronomy II, (21 February 2003); https://doi.org/10.1117/12.459718

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