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Characterizing closure-phase measurements at IOTA

Ragland, S. and Traub, W. and Berger, J.-P. and Millan-Gabet, R. and Monnier, J. D. and Pedretti, E. and Schloerb, F. P. and Carleton, N. P. and Haguenauer, P. and Kern, P. and Labeye, P. and Lacasse, M. G. and Malbet, F. and Rousselet-Perraut, K. (2004) Characterizing closure-phase measurements at IOTA. In: New Frontiers in Stellar Interferometry. Proceedings of SPIE. No.5491. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 1390-1397. ISBN 9780819454232.

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We are working towards imaging the surfaces and circumstellar envelopes of Mira stars in the near-infrared, using the IOTA interferometer and the IONIC integrated-optics 3-beam combiner. In order to study atmospheric structures of these stars, we installed 3 narrow-band filters that subdivide H-band into 3 roughly equal-width sub-bands - a central one for continuum, and 2 adjacent ones to sample Mira star's (mostly water) absorption-bands. We present here our characterization of the IOTA 3-Telescope interferometer for closure-phase measurements with broad and narrow-band filters in the H atmospheric window. This includes characterizing the stability, chromaticity, and polarization effects of the present IOTA optics with the IONIC beam-combiner, and characterizing the accuracy of our closure phase measurements.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Berger, J.-P.0000-0001-5025-0428
Millan-Gabet, R.0000-0003-0447-5866
Monnier, J. D.0000-0002-3380-3307
Lacasse, M. G.0000-0001-8627-9708
Additional Information:© 2004 Society of Photo-optical Instrumentation Engineers (SPIE). This work was performed in part under contract with the Jet Propulsion Laboratory (JPL) through the Michelson Fellowship to Ragland, funded by NASA as an element of the Navigator (planet finder) program. JPL is managed for NASA by the California Institute of Technology.
Funding AgencyGrant Number
Subject Keywords:optical interferometry, closure phase technique, spatial filtering, integrated optics, imaging
Series Name:Proceedings of SPIE
Issue or Number:5491
Record Number:CaltechAUTHORS:20190118-155747787
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Official Citation:Sam Ragland, Wesley Arthur Traub, Jean-Philippe Berger, Rafael Millan-Gabet, John D. Monnier, Ettore Pedretti, F. Peter Schloerb, Nathaniel P. Carleton, Pierre Haguenauer, Pierre Y. Kern, Pierre R. Labeye, Marc G. Lacasse, Fabien Malbet, Karine Rousselet-Perraut, "Characterizing closure-phase measurements at IOTA," Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); doi: 10.1117/12.552447
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92381
Deposited By: Tony Diaz
Deposited On:22 Jan 2019 05:10
Last Modified:16 Nov 2021 03:49

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