Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards Hα imaging of protoplanets

S. Vievard; M. Lallement; E. Huby; S. Lacour; O. Guyon; N. Jovanovic; S. Leon-Saval; J. Lozi; V. Deo; K. Ahn; N. Cvetojevic; K. Barjot; G. Martin; H. D. Kenchington-Goldsmith; G. Duchêne; T. Kotani; F. Marchis; D. Rouan; M. Fitzgerald; S. Sallum; B. Norris; C. Betters; P. Gatkine; J. Lin; Y. J. Kim; C. Pham; C. Cassagnettes; A. Billat; M. Tamura; G. Perrin

doi:10.1117/12.2676319

5 October 2023 Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards Hα imaging of protoplanets

S. Vievard, M. Lallement, E. Huby, S. Lacour, O. Guyon, N. Jovanovic, S. Leon-Saval, J. Lozi, V. Deo, K. Ahn, N. Cvetojevic, K. Barjot, G. Martin, H. D. Kenchington-Goldsmith, G. Duchêne, T. Kotani, F. Marchis, D. Rouan, M. Fitzgerald, S. Sallum, B. Norris, C. Betters, P. Gatkine, J. Lin, Y. J. Kim, C. Pham, C. Cassagnettes, A. Billat, M. Tamura, G. Perrin

Author Affiliations +

Proceedings Volume 12680, Techniques and Instrumentation for Detection of Exoplanets XI; 126800H (2023) https://doi.org/10.1117/12.2676319
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

FIRST is a post Extreme Adaptive-Optics (ExAO) spectro-interferometer operating in the Visible (600-800 nm, R∼400). Its exquisite angular resolution (a sensitivity analysis of on-sky data shows that bright companions can be detected down to 0.25λ/D) combined with its sensitivity to pupil phase discontinuities (from a few nm up to dozens of microns) makes FIRST an ideal self-calibrated solution for enabling exoplanet detection and characterization in the future. We present the latest on-sky results along with recent upgrades, including the integration and on-sky test of a new spectrograph (R∼3,600) optimized for the detection of Hα emission from young exoplanets accreting matter.

Conference Presentation

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S. Vievard, M. Lallement, E. Huby, S. Lacour, O. Guyon, N. Jovanovic, S. Leon-Saval, J. Lozi, V. Deo, K. Ahn, N. Cvetojevic, K. Barjot, G. Martin, H. D. Kenchington-Goldsmith, G. Duchêne, T. Kotani, F. Marchis, D. Rouan, M. Fitzgerald, S. Sallum, B. Norris, C. Betters, P. Gatkine, J. Lin, Y. J. Kim, C. Pham, C. Cassagnettes, A. Billat, M. Tamura, and G. Perrin "Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards Hα imaging of protoplanets", Proc. SPIE 12680, Techniques and Instrumentation for Detection of Exoplanets XI, 126800H (5 October 2023); https://doi.org/10.1117/12.2676319

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