Design, scientific goals, and performance of the SCExAO survey for planets around accelerating stars

Mona El Morsy; Thayne Currie; Masayuki Kuzuhara; Jeffrey Chilcote; Olivier Guyon; Taylor L. Tobin; Timothy Brandt; Qier An; Kyohoon Anh; Danielle Bovie; Vincent Deo; Tyler Groff; Ziying Gu; Markus Janson; Nemanja Jovanovic; Yiting Li; Kellen Lawson; Julien Lozi; Miles Lucas; Christian Marois; Naoshi Murakami; Eric L. Nielsen; Barnaby Norris; Nour Skaf; Motohide Tamura; William Thomson; Taichi Uyama; Sebastien Vievard

doi:10.1117/12.3019513

12 September 2024 Design, scientific goals, and performance of the SCExAO survey for planets around accelerating stars

Mona El Morsy, Thayne Currie, Masayuki Kuzuhara, Jeffrey Chilcote, Olivier Guyon, Taylor L. Tobin, Timothy Brandt, Qier An, Kyohoon Anh, Danielle Bovie, Vincent Deo, Tyler Groff, Ziying Gu, Markus Janson, Nemanja Jovanovic, Yiting Li, Kellen Lawson, Julien Lozi, Miles Lucas, Christian Marois, Naoshi Murakami, Eric L. Nielsen, Barnaby Norris, Nour Skaf, Motohide Tamura, William Thomson, Taichi Uyama, Sebastien Vievard

Author Affiliations +

Proceedings Volume 13097, Adaptive Optics Systems IX; 130977I (2024) https://doi.org/10.1117/12.3019513
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

We describe the motivation, design, and early results for our 42-night, 125 star Subaru/SCExAO direct imaging survey for planets around accelerating stars. Unlike prior large surveys, ours focuses only on stars showing evidence for an astrometric acceleration plausibly due to the dynamical pull of an unseen planet or brown dwarf. Our program is motivated by results from a recent pilot program that found the first planet jointly discovered from direct imaging and astrometry and resulted in a planet and brown dwarf discovery rate substantially higher than previous unbiased surveys like GPIES. The first preliminary results from our program reveal multiple new companions; discovered planets and brown dwarfs can be further characterized with follow-up data, including higher-resolution spectra. Finally, we describe the critical role this program plays in supporting the Roman Space Telescope Coronagraphic Instrument, providing a currently-missing list of targets suitable for the CGI technological demonstration without which the CGI tech demo risks failure.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Mona El Morsy, Thayne Currie, Masayuki Kuzuhara, Jeffrey Chilcote, Olivier Guyon, Taylor L. Tobin, Timothy Brandt, Qier An, Kyohoon Anh, Danielle Bovie, Vincent Deo, Tyler Groff, Ziying Gu, Markus Janson, Nemanja Jovanovic, Yiting Li, Kellen Lawson, Julien Lozi, Miles Lucas, Christian Marois, Naoshi Murakami, Eric L. Nielsen, Barnaby Norris, Nour Skaf, Motohide Tamura, William Thomson, Taichi Uyama, and Sebastien Vievard "Design, scientific goals, and performance of the SCExAO survey for planets around accelerating stars", Proc. SPIE 13097, Adaptive Optics Systems IX, 130977I (12 September 2024); https://doi.org/10.1117/12.3019513

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