Eighth‐Order Image Masks for Terrestrial Planet Finding
| Autor: | Marc J. Kuchner, Justin Crepp, Jian Ge |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
FOS: Physical sciences
Binary number Astrophysics Band-stop filter 01 natural sciences Image (mathematics) law.invention Optics Robustness (computer science) law 0103 physical sciences 010303 astronomy & astrophysics Throughput (business) Coronagraph Physics 010308 nuclear & particles physics business.industry Astrophysics (astro-ph) Astrophysics::Instrumentation and Methods for Astrophysics Astronomy and Astrophysics Terrestrial Planet Finder Space and Planetary Science Terrestrial planet Astrophysics::Earth and Planetary Astrophysics business |
| Zdroj: | The Astrophysical Journal. 628:466-473 |
| ISSN: | 1538-4357 0004-637X |
| DOI: | 10.1086/430200 |
| Popis: | We describe a new series of band-limited image masks for coronagraphy that are insensitive to pointing errors and other low-spatial-frequency optical aberrations. For a modest cost in throughput, these ``eighth-order'' masks would allow the Terrestrial Planet Finder Coronagraph (TPF-C) to operate with a pointing accuracy no better than that of the Hubble Space Telescope. We also provide eighth-order notch filter masks that offer the same robustness to pointing errors combined with more manageable construction tolerances: binary masks and graded masks with moderate optical density requirements. 21 pages, including 6 figures. Accepted to ApJ |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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