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Proceedings Paper

The Fourier-Kelvin stellar interferometer (FKSI): a progress report and preliminary results from our nulling testbed
Author(s): R. K. Barry; W. C. Danchi; V. J. Chambers; J. Rajagopal; L. J. Richardson; A. Martino; D. Deming; M. Kuchner; R. Linfield; R. Millan-Gabet; L. A. Lee; J. D. Monnier; L. G. Mundy; C. Noecker; S. Seager; D. J. Wallace; R. J. Allen; W. A. Traub; H. C. Ford
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Paper Abstract

The Fourier-Kelvin Stellar Interferometer (FKSI) is a mission concept for an imaging and nulling interferometer for the near infrared to mid-infrared spectral region (3-8 microns). FKSI is a scientific and technological pathfinder to TPF/DARWIN as well as SPIRIT, SPECS, and SAFIR. It will also be a high angular resolution system complementary to JWST. There are four key scientific issues the FKSI mission is designed to address. First, we plan to characterize the atmospheres of the known extra-solar giant planets. Second, we will explore the morphology of debris disks to look for resonant structures to find and characterize extrasolar planets. Third, we will observe young stellar systems to understand their evolution and planet forming potential, and study circumstellar material around a variety of stellar types to better understand their evolutionary state. Finally, we plan to measure detailed structures inside active galactic nuclei. We report results of simulation studies of the imaging capabilities of the FKSI with various configurations of two to five telescopes including the effects of thermal noise and local and exozodiacal dust emission. We also report preliminary results from our symmetric Mach-Zehnder nulling testbed.

Paper Details

Date Published: 15 September 2005
PDF: 11 pages
Proc. SPIE 5905, Techniques and Instrumentation for Detection of Exoplanets II, 59050Z (15 September 2005); doi: 10.1117/12.627827
Show Author Affiliations
R. K. Barry, NASA Goddard Space Flight Ctr. (United States)
The John Hopkins Univ. (United States)
W. C. Danchi, NASA Goddard Space Flight Ctr. (United States)
V. J. Chambers, NASA Goddard Space Flight Ctr. (United States)
J. Rajagopal, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland/College Park (United States)
L. J. Richardson, NASA Goddard Space Flight Ctr. (United States)
A. Martino, NASA Goddard Space Flight Ctr. (United States)
D. Deming, NASA Goddard Space Flight Ctr. (United States)
M. Kuchner, NASA Goddard Space Flight Ctr. (United States)
R. Linfield, Ball Aerospace (United States)
R. Millan-Gabet, California Institute of Technology (United States)
L. A. Lee, Princeton Univ. (United States)
J. D. Monnier, Univ. of Michigan (United States)
L. G. Mundy, Univ. of Maryland/College Park (United States)
C. Noecker, Ball Aerospace (United States)
S. Seager, Carnegie Institution of Washington (United States)
D. J. Wallace, NASA Goddard Space Flight Ctr. (United States)
R. J. Allen, Space Telescope Science Institute (United States)
W. A. Traub, Harvard-Smithsonian Ctr. for Astrophysics (United States)
H. C. Ford, The Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 5905:
Techniques and Instrumentation for Detection of Exoplanets II
Daniel R. Coulter, Editor(s)

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