Design, scientific goals, and performance of the SCExAO survey for planets around accelerating stars
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2024
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| author | Morsy, Mona El Currie, Thayne Kuzuhara, Masayuki Chilcote, Jeffrey Guyon, Olivier Tobin, Taylor L. Brandt, Timothy An, Qier Anh, Kyohoon Bovie, Danielle Deo, Vincent Groff, Tyler Gu, Ziying Janson, Markus Jovanovic, Nemanja Li, Yiting Lawson, Kellen Lozi, Julien Lucas, Miles Marois, Christian Murakami, Naoshi Nielsen, Eric Norris, Barnaby Skaf, Nour Tamura, Motohide Thompson, William Uyama, Taichi Vievard, Sebastien |
| author_facet | Morsy, Mona El Currie, Thayne Kuzuhara, Masayuki Chilcote, Jeffrey Guyon, Olivier Tobin, Taylor L. Brandt, Timothy An, Qier Anh, Kyohoon Bovie, Danielle Deo, Vincent Groff, Tyler Gu, Ziying Janson, Markus Jovanovic, Nemanja Li, Yiting Lawson, Kellen Lozi, Julien Lucas, Miles Marois, Christian Murakami, Naoshi Nielsen, Eric Norris, Barnaby Skaf, Nour Tamura, Motohide Thompson, William Uyama, Taichi Vievard, Sebastien |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_06773 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Design, scientific goals, and performance of the SCExAO survey for planets around accelerating stars Morsy, Mona El Currie, Thayne Kuzuhara, Masayuki Chilcote, Jeffrey Guyon, Olivier Tobin, Taylor L. Brandt, Timothy An, Qier Anh, Kyohoon Bovie, Danielle Deo, Vincent Groff, Tyler Gu, Ziying Janson, Markus Jovanovic, Nemanja Li, Yiting Lawson, Kellen Lozi, Julien Lucas, Miles Marois, Christian Murakami, Naoshi Nielsen, Eric Norris, Barnaby Skaf, Nour Tamura, Motohide Thompson, William Uyama, Taichi Vievard, Sebastien Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics 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. |
| title | Design, scientific goals, and performance of the SCExAO survey for planets around accelerating stars |
| topic | Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2409.06773 |