Working model of a gossamer membrane spectrographic space telescope

Details Working model of a gossamer membrane spectrographic space telescope Working model of a gossamer membrane spectrographic space telescope

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spie.7436e..16d&link_type=abstract

UV/Optical/IR Space Telescopes: Innovative Technologies and Concepts IV. Edited by MacEwen, Howard A.; Breckinridge, James B.

Physics

Scientific paper

The nineteenth century Fraunhofer primary objective grating (POG) telescope has been redesigned with a secondary spectrometer. The POG is embossed on a membrane and placed at an angle of grazing exodus relative to a conventional spectrographic telescope. The result is a new type of telescope that disambiguates overlapping spectra and can capture spectral flux from all objects over its free spectral range, nearly 40°. For space deployment, the ribbon-shaped membrane can be stowed as a cylinder under a rocket fairing for launch and deployed in space from a cylindrical drum. Any length up to kilometer scale could be contemplated.

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