Hypertelescope imaging: from exoplanets to neutron stars

Antoine Labeyrie; Herve Le Coroller; Julien Dejonghe; Frantz Martinache; Virginie Borkowski; Olivier Lardiere; Laurent Koechlin

doi:10.1117/12.460844

26 February 2003 Hypertelescope imaging: from exo-planets to neutron stars

Antoine Labeyrie, Herve Le Coroller, Julien Dejonghe, Frantz Martinache, Virginie Borkowski, Olivier Lardiere, Laurent Koechlin

Author Affiliations +

Proceedings Volume 4852, Interferometry in Space; (2003) https://doi.org/10.1117/12.460844
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

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.

Citation Download Citation

Antoine Labeyrie, Herve Le Coroller, Julien Dejonghe, Frantz Martinache, Virginie Borkowski, Olivier Lardiere, and Laurent Koechlin "Hypertelescope imaging: from exo-planets to neutron stars", Proc. SPIE 4852, Interferometry in Space, (26 February 2003); https://doi.org/10.1117/12.460844

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