Combined approach to the Hubble Space Telescope wave-front distortion analysis
| Autor: | Francois Roddier, Claude Roddier |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
Wavefront Geometrical optics business.industry Materials Science (miscellaneous) Distortion (optics) Astrophysics::Instrumentation and Methods for Astrophysics Iterative reconstruction Industrial and Manufacturing Engineering law.invention Primary mirror Telescope Spherical aberration Optics law Astrophysics::Earth and Planetary Astrophysics Business and International Management business Focus (optics) Astrophysics::Galaxy Astrophysics |
| Zdroj: | Applied optics. 32(16) |
| ISSN: | 1559-128X |
| Popis: | Stellar images taken by the Hubble Space Telescope at various focus positions have been analyzed to estimate wave-front distortion. Rather than using a single algorithm, we found that better results were obtained by combining the advantages of various algorithms. For the planetary camera, the most accurate algorithms consistently gave a spherical aberration of -0.290-µm rms with a maximum deviation of 0.005 µm. Evidence was found that the spherical aberration is essentially produced by the primary mirror. The illumination in the telescope pupil plane was reconstructed and evidence was found for a slight camera misalignment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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