SOLAR ULTRAVIOLET NETWORK (SUN) : An Interferometric Investigation Of The Fundamental Solar Astrophysical Scales
| Autor: | M. Martic, C. Aime, A. M. Title, Jacques Porteneuve, O. Von der Luhe, L. W. Acton, J. Heyvaerts, B. Moreau, R. Jalin, Philippe Lemaire, M. Faucherre, B. Haisch, R. Muller, E. Schulz-Lupertz, B. Braam, J. C. Noens, M. Bruner, H. Visser, L. Damé, T. Cornwell, P. Connes, B. H. Foing, R. Hoekstra |
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| Rok vydání: | 1989 |
| Předmět: |
Physics
business.industry Astrophysics::Instrumentation and Methods for Astrophysics Astronomy Coronal loop Solar physics Solar prominence Solar telescope Interferometry Optics Ultraviolet astronomy Physics::Space Physics Astronomical interferometer Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics business Image resolution |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.961515 |
| Popis: | Present Solar telescope projects, on ground or in Space (like the Orbiting Solar Laboratory) are limited in their ambitions to visible wavelengths and to spatial resolutions not better than a tenth of an arcsec. The Solar Ultraviolet Network (SUN) proposal presented in this paper, is an interferometric concept capable of observations with a spatial resolution better than 0.013" (10 km) on the Sun, in the UV range. Based on Stabilized Interferometry principles it consists in 4 telescopes of 20 cm diameter aligned non-redundantly on a 2 m baseline. Despite its size (2.1 x 1.0 x 0.7 m) and its intrinsic complexity, SUN would be perfectly suited for use on the Space Station, when implemented on a pointing platform of performances comparable with the Instrument Pointing System (flown on Spacelab2). The remarkable capabilities of the SUN instrument, resulting from its "compact" non-redundant configuration of telescopes, allow high resolution imaging on a 2 x 2 arcsec2 field (and with a dynamic on the reconstructed images superior to 100 for phase stabilities ≥ λ/10), on the Solar disk (granulation, flares and micro-flares, prominences and filaments), or at the limb and above, across coronal loops. |
| Databáze: | OpenAIRE |
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