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Development of a statistical reduction method for the Palomar Fiber Nuller

Hanot, Charles and Mennesson, Bertrand and Serabyn, Eugene and Martin, Stefan and Liewer, Kurt and Loya, Frank and Mawet, Dimitri and Riaud, Pierre and Absil, Olivier (2010) Development of a statistical reduction method for the Palomar Fiber Nuller. In: Optical and Infrared Interferometry II. Proceedings of SPIE. No.7734. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 77342S. ISBN 978-0-8194-8224-2. http://resolver.caltech.edu/CaltechAUTHORS:20150526-130111425

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Abstract

A unique statistical data analysis method has been developed for reducing nulling interferometry data. The idea is to make use of the statistical distributions of the fluctuating null depths and beam intensities to retrieve the astrophysical null depth in the presence of fluctuations. The approach yields an accuracy much better than is possible with standard data reduction methods, because the accuracy of the null depth is not limited by the sizes of the phase and intensity errors but by the uncertainties on their statistical distributions. The result is an improvement in the instrumental null depth measurement limit of roughly an order of magnitude. We show in this paper that broadband null depths of 10^(-4) can be measured in the lab with our infrared Fiber Nuller without achromatic phase shifters. On sky results are also dramatically improved, with measured contrasts up to a couple of 10^(-4) with our instrument mounted on the Hale telescope at the Palomar Observatory. This statistical analysis is not specific to our instrument and may be applicable to other interferometers.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1346445PublisherArticle
http://dx.doi.org/10.1117/12.857014 DOIArticle
ORCID:
AuthorORCID
Mawet, Dimitri0000-0002-8895-4735
Absil, Olivier0000-0002-4006-6237
Additional Information:© 2010 Society of Photo-Optical Instrumentation Engineers (SPIE). July 21, 2010. This work was carried out at the Jet propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. The research was supported by the Fond National de la Recherche scientifique de Belgique (FNRS), by the Fonds pour la formation à la Recherche dans l’Industrie et dans l’Agriculture de Belgique (FRIA) and by the Communauté Francaise de Belgique - Action de recherche concertée - Académie Wallonie - Europe and by the Center for Exoplanet Science.
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
Fond National de la Recherche scientifique de Belgique (FNRS)UNSPECIFIED
Fonds pour la formation à la Recherche dans l’Industrie et dans l’Agriculture de Belgique (FRIA)UNSPECIFIED
Communauté Francaise de Belgique-Action de recherche concertée-Académie Wallonie-EuropeUNSPECIFIED
Center for Exoplanet ScienceUNSPECIFIED
Subject Keywords:Statistics, Nulling interferometry, Coronagraphy, stellar diameters
Record Number:CaltechAUTHORS:20150526-130111425
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150526-130111425
Official Citation:Charles Hanot ; Bertrand Mennesson ; Eugene Serabyn ; Stefan Martin ; Kurt Liewer, et al. "Development of a statistical reduction method for the Palomar Fiber Nuller", Proc. SPIE 7734, Optical and Infrared Interferometry II, 77342S (July 21, 2010); doi:10.1117/12.857014
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57812
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:26 May 2015 20:46
Last Modified:26 Mar 2019 16:58

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