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Proceedings Paper

DARWIN mission and configuration trade-off
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Paper Abstract

The European DARWIN mission aims at detection and characterization of Earth-like exo-planets as well as at aperture synthesis imaging. The method to be applied is nulling interferometry in the mid-infrared wavelength regime. The DARWIN instrument consists of a flotilla of free-flying spacecraft, one spacecraft carrying the optics for beam recombination and three or more spacecraft carrying the large collector telescopes. We provide a trade-off of different configuration, payload, and mission concepts. We discuss various two and three-dimensional aperture configurations with three or four telescopes, beam routing schemes, phase modulation methods, and beam recombination and detection schemes as well as different launch vehicle configurations, launch scenarios, and orbits. We trade the different DARWIN concepts by assessing the performance in terms of science return, development risk, and planning.

Paper Details

Date Published: 28 June 2006
PDF: 11 pages
Proc. SPIE 6268, Advances in Stellar Interferometry, 626827 (28 June 2006); doi: 10.1117/12.671658
Show Author Affiliations
Oswald Wallner, EADS Astrium GmbH (Germany)
Klaus Ergenzinger, EADS Astrium GmbH (Germany)
Reinhold Flatscher, EADS Astrium GmbH (Germany)
Ulrich Johann, EADS Astrium GmbH (Germany)

Published in SPIE Proceedings Vol. 6268:
Advances in Stellar Interferometry
John D. Monnier; Markus Schöller; William C. Danchi, Editor(s)

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