TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS
Article
Article Title | TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Lendl, Monika (Author), Bouchy, Francois (Author), Gill, Samuel (Author), Nielsen, Louise D. (Author), Turner, Oliver (Author), Stassun, Keivan (Author), Acton, Jack S. (Author), Anderson, David R. (Author), Armstrong, David J. (Author), Bayliss, Daniel (Author), Belardi, Claudia (Author), Bryant, Edward M. (Author), Burleigh, Matthew R. (Author), Chaushev, Alexander (Author), Casewell, Sarah L. (Author), Cooke, Benjamin F. (Author), Eigmuller, Philipp (Author), Gillen, Edward (Author), Goad, Michael R. (Author), Gunther, Maximilian N. (Author), Hagelberg, Janis (Author), Jenkins, James S. (Author), Louden, Tom (Author), Marmier, Maxime (Author), McCormac, James (Author), Moyano, Maximiliano (Author), Pollacco, Don (Author), Raynard, Liam (Author), Tilbrook, Rosanna H. (Author), Udry, Stephane (Author), Vines, Jose I. (Author), West, Richard G. (Author), Wheatley, Peter J. (Author), Ricker, George (Author), Vanderspek, Roland (Author), Latham, David W. (Author), Seager, Sara (Author), Winn, Josh (Author), Jenkins, Jon M. (Author), Addison, Brett (Author), Briceno, Cesar (Author), Brahm, Rafael (Author), Caldwell, Douglas A. (Author), Doty, John (Author), Espinoza, Nestor (Author), Goeke, Bob (Author), Henning, Thomas (Author), Jordan, Andres (Author), Krishnamurthy, Akshata (Author), Law, Nicholas (Author), Morris, Robert (Author), Okumura, Jack (Author), Mann, Andrew W. (Author), Rodriguez, Joseph E. (Author), Sarkis, Paula (Author), Schlieder, Joshua (Author), Twicken, Joseph D. (Author), Villanueva, Steven, Jr. (Author), Wittenmyer, Robert A. (Author), Wright, Duncan J. (Author) and Ziegler, Carl (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 492 (2), pp. 1761-1769 |
Number of Pages | 9 |
Year | 2019 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stz3545 |
Web Address (URL) | https://academic.oup.com/mnras/article/492/2/1761/5685968 |
Abstract | We report the period, eccentricity, and mass determination for the Transiting Exoplanet Survey Satellite (TESS) single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS 2-min cadence data from Sector 2. We determine the orbital period via radial velocity measurements (P = 33.9 d), which allowed for ground-based photometric detection of two subsequent transits. Our data show that the companion to TOI-222 is a low-mass star, with a radius of 0.18_{-0.10}^{+0.39} R☉ and a mass of 0.23 ± 0.01 M☉. This discovery showcases the ability to efficiently discover long-period systems from TESS single-transit events using a combination of radial velocity monitoring coupled with high-precision ground-based photometry. |
Keywords | techniques: photometric; stars: individual: TOI-222; planetary systems; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. Published by Oxford University Press on behalf of the Royal Astronomical Society. C 2019 The Author(s). |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | University of Geneva, Switzerland |
University of Warwick, United Kingdom | |
Vanderbilt University, United States | |
University of Leicester, United Kingdom | |
German Aerospace Centre, Germany | |
University of Cambridge, United Kingdom | |
Massachusetts Institute of Technology, United States | |
University of Chile, Chile | |
Catholic University of the North, Chile | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Princeton University, United States | |
NASA Ames Research Center, United States | |
Centre for Astrophysics | |
Cerro Tololo Inter-American Observatory, Chile | |
Pontifical Catholic University of Chile, Chile | |
Noqsi Aerospace, United States | |
Max Planck Society, Germany | |
Adolfo Ibanez University, Chile | |
University of North Carolina, United States | |
National Aeronautics and Space Administration (NASA), United States | |
NASA Goddard Space Flight Center, United States | |
University of Toronto, Canada |
https://research.usq.edu.au/item/q5qw6/toi-222-a-single-transit-tess-candidate-revealed-to-be-a-34-d-eclipsing-binary-with-coralie-eulercam-and-ngts
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