TESS-Keck Survey. XIV. Two Giant Exoplanets from the Distant Giants Survey
Article
Van Zandt, Judah, Petigura, Erik A., MacDougall, Mason, Gilbert, Gregory J., Lubin, Jack, Barclay, Thomas, Batalha, Natalie M., Crossfield, Ian J. M., Dressing, Courtney, Fulton, Benjamin, Howard, Andrew W. and Isaacson, Howard. 2023. "TESS-Keck Survey. XIV. Two Giant Exoplanets from the Distant Giants Survey." The Astronomical Journal. 165 (2). https://doi.org/10.3847/1538-3881/aca6ef
Article Title | TESS-Keck Survey. XIV. Two Giant Exoplanets from the Distant Giants Survey |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Van Zandt, Judah, Petigura, Erik A., MacDougall, Mason, Gilbert, Gregory J., Lubin, Jack, Barclay, Thomas, Batalha, Natalie M., Crossfield, Ian J. M., Dressing, Courtney, Fulton, Benjamin, Howard, Andrew W. and Isaacson, Howard |
Journal Title | The Astronomical Journal |
Journal Citation | 165 (2) |
Article Number | 60 |
Number of Pages | 13 |
Year | 2023 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/aca6ef |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/aca6ef |
Abstract | We present the Distant Giants Survey, a three-year radial velocity campaign to measure P(DG?CS), the conditional occurrence of distant giant planets (DG; M p ? 0.3-13 M J, P > 1 yr) in systems hosting a close-in small planet (CS; R p < 10 R ?). For the past two years, we have monitored 47 Sun-like stars hosting small transiting planets detected by TESS. We present the selection criteria used to assemble our sample and report the discovery of two distant giant planets, TOI-1669 b and TOI-1694 c. For TOI-1669 b we find that M sin i = 0.573 ± 0.074 M J , P = 502 ± 16 days, and e < 0.27, while for TOI-1694 c, M sin i = 1.05 ± 0.05 M J , P = 389.2 ± 3.9 days, and e = 0.18 ± 0.05. We also confirmed the 3.8 days transiting planet TOI-1694 b by measuring a true mass of M = 26.1 ± 2.2 M ?. At the end of the Distant Giants Survey, we will incorporate TOI-1669 b and TOI-1694 c into our calculation of P(DG?CS), a crucial statistic for understanding the relationship between outer giants and small inner companions. |
Keywords | Radial velocity (1332); Extrasolar gaseous giant planets (509); Exoplanet detection methods (489); Transits (1711) |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Byline Affiliations | University of California Los Angeles, United States |
University of California Irvine, United States | |
NASA Goddard Space Flight Center, United States | |
University of Maryland, United States | |
University of California Santa Cruz, United States | |
University of Kansas, United States | |
University of California Berkeley, United States | |
NASA Exoplanet Science Institute, United States | |
California Institute of Technology (Caltech), United States | |
Centre for Astrophysics |
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