FIRST, a pupil-remapping fiber interferometer at the Subaru Telescope: on-sky results

S. Vievard; E. Huby; S. Lacour; K. Barjot; G. Martin; N. Cvetojevic; V. Deo; O. Guyon; J. Lozi; T. Kotani; N. Jovanovic; F. Marchis; G. Duchêne; V. Lapeyrere; D. Rouan; G. Perrin

doi:10.1117/12.2563033

13 December 2020 FIRST, a pupil-remapping fiber interferometer at the Subaru Telescope: on-sky results

S. Vievard, E. Huby, S. Lacour, K. Barjot, G. Martin, N. Cvetojevic, V. Deo, O. Guyon, J. Lozi, T. Kotani, N. Jovanovic, F. Marchis, G. Duchêne, V. Lapeyrere, D. Rouan, G. Perrin

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Proceedings Volume 11446, Optical and Infrared Interferometry and Imaging VII; 1144629 (2020) https://doi.org/10.1117/12.2563033
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

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Abstract

FIRST, the Fibered Imager foR a Single Telescope, is a spectro-imager using single-mode fibers for pupil remap- ping, allowing measurements beyond the telescope diffraction limit. Integrated on the Subaru Coronagraphic Extreme Adaptive Optics instrument at the Subaru Telescope, it benefits from a very stable visible light wave- front allowing to acquire long exposure and operate on significantly fainter sources than previously possible. On-sky results demonstrated the ability of the instrument to detect stellar companions separated 43mas in the case of the Capella binary system. A similar approach on an extremely large telescope would offer unique scientific opportunities for companion detection and characterization at very high angular resolution.

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S. Vievard, E. Huby, S. Lacour, K. Barjot, G. Martin, N. Cvetojevic, V. Deo, O. Guyon, J. Lozi, T. Kotani, N. Jovanovic, F. Marchis, G. Duchêne, V. Lapeyrere, D. Rouan, and G. Perrin "FIRST, a pupil-remapping fiber interferometer at the Subaru Telescope: on-sky results", Proc. SPIE 11446, Optical and Infrared Interferometry and Imaging VII, 1144629 (13 December 2020); https://doi.org/10.1117/12.2563033

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