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|Title: ||Long baseline nulling interferometry with the Keck Telescopes : a progress report|
|Authors: ||Mennesson, Bertrand|
Colavita, M. M.
Creech-Eakman, M. J.
Mignant, D. Le
|Issue Date: ||3-Oct-2005 |
|Publisher: ||Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005.|
|Citation: ||Direct Imaging of Exoplanets : Science and Techniques, Villefranche-sur-mer (Nice), France, October 3-7, 2005.|
|Abstract: ||The Keck Interferometer Nuller (KIN) is one of the major scientific and technical precursors to the Terrestrial Planet Finder Interferometer (TPF-I) mission. KIN's primary objective is to measure the level of exo-zodiacal mid-infrared emission around nearby main sequence stars, which requires deep broad-band nulling of astronomical sources of a few Janskys at 10 microns. A number of new capabilitites are needed in order to reach that goal with the Keck telescopes: mid-infrared coherent recombination, interferometric operation in "split pupil" mode, N-band optical path stabilization using K-band fringe tracking and internal metrology, and eventually, active atmospheric dispersion correction. We report here on the progress made implementing these new functionalities, and discuss the initial levels of extinction achieved on the sky.|
|Appears in Collections:||JPL TRS 1992+|
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