Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apopt..45.4404w&link_type=abstract
Applied Optics IP, vol. 45, Issue 18, pp.4404-4410
Astronomy and Astrophysics
Astrophysics
1
Interferometry, Optical Instruments, Astronomy And Astrophysics
Scientific paper
The Ground-Based European Nulling Interferometry Experiment (GENIE) is intended as an Earth-based precursor for the European Darwin mission that will prepare the Darwin science program and demonstrate the required technology at system level. We propose a compact nulling interferometer design consisting of a two-telescope aperture configuration, an optional split-pupil add-on, and only four active control loops for counteracting environmentally induced disturbances. We show by simulation that the proposed instrument is able to detect, within a few minutes of observation time, exo-zodiacal dust clouds around Sunlike stars at 20 parsecs that are 20 times stronger than the local zodiacal dust cloud density.
Ergenzinger Klaus
Flatscher Reinhold
Wallner Oswald
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