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Proceedings Paper

SOLAR ULTRAVIOLET NETWORK (SUN) : An Interferometric Investigation Of The Fundamental Solar Astrophysical Scales
Author(s): L. Dame; B. Moreau; T. Cornwell; H. Visser; A. M. Title; L. Acton; C. Aime; B. Braam; M. Bruner; P. Connes; M. Faucherre; B. H. Foing; B. Haisch; R. Hoekstra; J. Heyvaerts; R. Jalin; P. Lemaire; M. Martic; R. Muller; J. C. Noens; J. Porteneuve; E. Schulz-Lupertz; O. Von der Luhe
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Paper Abstract

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.

Paper Details

Date Published: 26 September 1989
PDF: 12 pages
Proc. SPIE 1130, New Technologies for Astronomy, (26 September 1989); doi: 10.1117/12.961515
Show Author Affiliations
L. Dame, Laboratoire de Physique Stellaire et Planetaire (IAS) (France)
B. Moreau, ONERA (France)
T. Cornwell, National Radio Astronomy Observatory (United States)
H. Visser, TNO-TPD Institute of Applied Physics (The Netherlands)
A. M. Title, Lockheed Palo Alto Research Laboratory (United States)
L. Acton, Lockheed Palo Alto Research Laboratory (United States)
C. Aime, Universite de Nice (France)
B. Braam, TNO-TPD Institute of Applied Physics (The Netherlands)
M. Bruner, Lockheed Palo Alto Research Laboratory (United States)
P. Connes, Service d'Aeronomie (France)
M. Faucherre, Laboratoire de Physique Stellaire et Planetaire (IAS) (France)
B. H. Foing, Laboratoire de Physique Stellaire et Planetaire (IAS) (France)
B. Haisch, Lockheed Palo Alto Research Laboratory (United States)
R. Hoekstra, TNO-TPD Institute of Applied Physics (The Netherlands)
J. Heyvaerts, DAEC (France)
R. Jalin, ONERA (France)
P. Lemaire, Laboratoire de Physique Stellaire et Planetaire (IAS) (France)
M. Martic, Laboratoire de Physique Stellaire et Planetaire (IAS) (France)
R. Muller, Observatoire du Pic-du-Midi (France)
J. C. Noens, Observatoire du Pic-du-Midi (France)
J. Porteneuve, Service d'Aeronomie (France)
E. Schulz-Lupertz, Kommunikationssysteme und Antriebe (Germany)
O. Von der Luhe, Institut fur Astronomie (Switzerland)


Published in SPIE Proceedings Vol. 1130:
New Technologies for Astronomy

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