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Proceedings Paper

Hypertelescope imaging: from exoplanets to neutron stars
Author(s): Antoine Labeyrie; Herve Le Coroller; Julien Dejonghe; Frantz Martinache; Virginie Borkowski; Olivier Lardiere; Laurent Koechlin
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Paper Abstract

'Densified-pupil multi-aperture imaging arrays', also called hypertelescopes, provide a path towards rich images obtained directly at the focal plane. They typically involve a large Fizeau arrangement, with a small attached 'pupil densifier' serving to gain luminosity at the expense of field. At scales ranging from kilometers to perhaps a million kilometers, such architectures appear of interest for stellar physics, galaxies, cosmology, and neutron star imaging with the larger sizes. Ground testing is initiated and space versions are proposed, particularly to NASA for its Terrestrial Planet Finder. The coronagraphic imaging achievable with this space version is expected to improve the detection sensitivity to attenuating the sky background contribution. Subsequent laser versions can in principle resolve the 'green spots' on an Earth seen at several parsecs. Current design work for a precursor array of 'flying mirrors' driven by solar sails in geostationary orbit will be presented.

Paper Details

Date Published: 26 February 2003
PDF: 12 pages
Proc. SPIE 4852, Interferometry in Space, (26 February 2003); doi: 10.1117/12.460844
Show Author Affiliations
Antoine Labeyrie, Collège de France (France)
Lab. d'Interféromètrie Stellaire et Exoplanétaire (France)
Herve Le Coroller, Collège de France (France)
Lab. d'Interféromètrie Stellaire et Exoplanétaire (France)
Julien Dejonghe, Collège de France (France)
Lab. d'Interféromètrie Stellaire et Exoplanétaire (France)
Frantz Martinache, Collège de France (France)
Lab. d'Interféromètrie Stellaire et Exoplanétaire (France)
Virginie Borkowski, Collège de France (France)
Lab. d'Interféromètrie Stellaire et Exoplanétaire (France)
Olivier Lardiere, Collège de France (France)
Lab. d'Interféromètrie Stellaire et Exoplanétaire (France)
Laurent Koechlin, Observatoire Midi-Pyrénées (France)


Published in SPIE Proceedings Vol. 4852:
Interferometry in Space
Michael Shao, Editor(s)

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