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Detecting exoplanets and characterizing their properties with fringe nulling
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Paper Abstract

Detecting exoplanets and characterizing their orbital properties is a difficult task, given the proximity of these objects relative to their host stars, as well as their brightness ratios. We present an interferometric fringe nulling technique, aimed at solving these issues. This technique uses baseline phases and takes advantage of the strong phase fluctuations, due to the presence of an exoplanet, that can be observed at spatial frequencies adjacent to the null crossing. We present initial results based on observations of the multiple stellar system η Aql, obtained with the Navy Precision Optical Interferometer, which indicate the presence of a Δm~5 mag close to the brightest star in this system.

Paper Details

Date Published: 9 July 2018
PDF: 6 pages
Proc. SPIE 10701, Optical and Infrared Interferometry and Imaging VI, 107012I (9 July 2018); doi: 10.1117/12.2312088
Show Author Affiliations
Henrique R. Schmitt, U.S. Naval Research Lab. (United States)
Ellyn K. Baines, U.S. Naval Research Lab. (United States)
J. Thomas Armstrong, U.S. Naval Research Lab. (United States)
Sergio R. Restaino, U.S. Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 10701:
Optical and Infrared Interferometry and Imaging VI
Michelle J. Creech-Eakman; Peter G. Tuthill; Antoine Mérand, Editor(s)

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