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Proceedings Paper

FINCH: time-dependent simulation of nulling interferometry for the DARWIN mission
Author(s): Klaus Ergenzinger; Michael Kersten; Rainer Sesselmann; Raphael Schwarz; Ulrich Johann; Rainer C. Wilhelm; Kevin L. Scales; Christian Erd
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Paper Abstract

Within the scope of the DARWIN Technology and Research Programme, the European Space Agency (ESA) initiated the development of a dynamic system simulator (called FINCH "Fast Interferometer Characterization") for the spaceborne nulling interferometry mission DARWIN.The FINCH project is realized by two parallel activities: (1) a simulator for the Guidance, Navigation and Control (FINCH/GNC) of the free-flying satellite array, and (2) a simulator for the optical subsystems and the beam propagation within the system (FINCH/OPT). While the GNC activity is handled by EADS Astrium, France, the optical part is performed in a joint effort by EADS Astrium, Germany, and the European Southern Observatory (ESO). In this paper we focus on FINCH/OPT aspects and describe: • DARWIN and the corresponding overall end-to-end simulation approach • the completed FINCH/OPT development for modelling of point sources • modelling of extended objects, exact and with suitable approximations • details of optical modelling of DARWIN configurations within FINCH • applications of FINCH

Paper Details

Date Published: 16 September 2004
PDF: 11 pages
Proc. SPIE 5497, Modeling and Systems Engineering for Astronomy, (16 September 2004); doi: 10.1117/12.552593
Show Author Affiliations
Klaus Ergenzinger, EADS Astrium (Germany)
Michael Kersten, EADS Astrium (Germany)
Rainer Sesselmann, EADS Astrium (Germany)
Raphael Schwarz, EADS Astrium (Germany)
Ulrich Johann, EADS Astrium (Germany)
Rainer C. Wilhelm, European Southern Observatory (Germany)
Kevin L. Scales, European Southern Observatory (Germany)
Christian Erd, European Space Agency ESTEC (Netherlands)

Published in SPIE Proceedings Vol. 5497:
Modeling and Systems Engineering for Astronomy
Simon C. Craig; Martin J. Cullum, Editor(s)

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