The ESA DARWIN Nulling Interferometer Breadboard

Details The ESA DARWIN Nulling Interferometer Breadboard The ESA DARWIN Nulling Interferometer Breadboard

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.522e...4f&link_type=abstract

Proceedings of GENIE - DARWIN Workshop - Hunting for Planets (ESA SP-522). 3-6 June 2002. Leiden, The Netherlands. Editor: H. La

Physics

Scientific paper

An interferometric nulling device plays an essential role in the search for extra terrestrial life like for the most popular TPF (NASA) and DARWIN (ESA) missions. A bright star seen on-axis must be suppressed by 6-9 magnitudes to detect the weak planetary signal carrying information on an eventually existing atmosphere. The current DARWIN configuration is based on a planar hexagon of equal sized free-flying telescopes to detect potential targets up to 30 light years distance from Earth. A central hub arranged in plane collects the light from the six telescopes. An additional out of plane satellite serves as relay for the scientific data and maintains the relative position of the free-flyers via laser metrology.

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