Reference : The potential of rotating-baseline nulling interferometers operating within large single...
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
The potential of rotating-baseline nulling interferometers operating within large single-telescope apertures
Serabyn, E. [Jet Propulsion Lab. (USA)]
Mennesson, B. [Jet Propulsion Lab. (USA)]
Martin, Stefan [ > > ]
Liewer, K. [Jet Propulsion Lab. (USA)]
Mawet, D. [Jet Propulsion Lab. (USA)]
Hanot, Charles [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Loya, F. [Jet Propulsion Lab. (USA)]
Colavita, M. M. [Jet Propulsion Lab. (USA)]
Ragland, Sam [W. M. Keck Observatory (USA)]
Optical and Infrared Interferometry II
Danchi, W. C.
Delplancke, F.
Rajagopal, J. K.
Proc. SPIE 7734
[en] The use of a rotating-baseline nulling interferometer for exoplanet detection was proposed several decades ago, but the technique has not yet been fully demonstrated in practice. Here we consider the faint companion and exozodiacal disk detection capabilities of rotating-baseline nulling interferometers, such as are envisioned for space-based infrared nullers, but operating instead within the aperture of large single telescopes. In particular, a nulling interferometer on a large aperture corrected by a next-generation extreme adaptive optics system can provide deep interferometric contrasts, and also reach smaller angles (sub λ/D) than classical coronagraphs. Such rotating nullers also provide validation for an eventual space-based rotating-baseline nulling interferometer. As practical examples, we describe ongoing experiments with rotating nullers at Palomar and Keck, and consider briefly the case of the Thirty Meter Telescope.

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