Working model of a gossamer membrane spectrographic space telescope
| Autor: | John Valliant, Joseph M. Ritter, Thomas D. Ditto |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Physics
business.product_category Spectrometer business.industry Astrophysics::Instrumentation and Methods for Astrophysics Grating law.invention Telescope Optics Spitzer Space Telescope Rocket law Cylinder Astrophysics::Earth and Planetary Astrophysics business Diffraction grating Free spectral range |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.826377 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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