Year: 2022
Type: article
Abstract: Hot Jupiters—short-period giant planets—were the first extrasolar planets to be discovered, but many questions about their origin remain. NASA’s Transiting Exoplanet Survey Satellite (TESS), an all-sky search for transiting planets, presents an opportunity to address these questions by constructing a uniform sample of hot Jupiters for demographic study through new detections and unifying the work of previous ground-based transit surveys. As the first results of an effort to build this large sample of planets, we report here the discovery of 10 new hot Jupiters (TOI-2193A b, TOI-2207b, TOI-2236b, TOI-2421b, TOI-2567b, TOI-2570b, TOI-3331b, TOI-3540A b, TOI-3693b, TOI-4137b). All of the planets were identified as planet candidates based on periodic flux dips observed by TESS, and were subsequently confirmed using ground-based time-series photometry, high-angular-resolution imaging, and high-resolution spectroscopy coordinated with the TESS Follow-up Observing Program. The 10 newly discovered planets orbit relatively bright F and G stars ( G < 12.5, T eff between 4800 and 6200 K). The planets’ orbital periods range from 2 to 10 days, and their masses range from 0.2 to 2.2 Jupiter masses. TOI-2421b is notable for being a Saturn-mass planet and TOI-2567b for being a “sub-Saturn,” with masses of 0.322 ± 0.073 and 0.195 ± 0.030 Jupiter masses, respectively. We also measured a detectably eccentric orbit ( e = 0.17 ± 0.05) for TOI-2207b, a planet on an 8 day orbit, while placing an upper limit of e < 0.052 for TOI-3693b, which has a 9 day orbital period. The 10 planets described here represent an important step toward using TESS to create a large and statistically useful sample of hot Jupiters.
Source: The Astronomical Journal
Authors: Samuel W. Yee, Joshua N. Winn, Joel D. Hartman, Joseph E. Rodriguez, George Zhou, Samuel N. Quinn, David W. Latham, Allyson Bieryla, Karen A. Collins, Brett C. Addison, Isabel Angelo, Khalid Barkaoui, Paul Benni, Andrew W. Boyle, Rafael Brahm, R. Paul Butler, David R. Ciardi, Kevin I. Collins, Dennis M. Conti, Jeffrey D. Crane, Fei Dai, Courtney D. Dressing, Jason D. Eastman, Zahra Essack, Raquel Forés-Toribio, Elise Furlan, Tianjun Gan, Steven Giacalone, Holden Gill, Eric Girardin, Thomas Henning, Christopher E. Henze, Melissa J. Hobson, Jonathan Horner, Andrew W. Howard, Steve B. Howell, Chelsea X. Huang, Howard Isaacson, Jon M. Jenkins, Eric L. N. Jensen, Andrés Jordán, Stephen R. Kane, John F. Kielkopf, Slawomir Lasota, Alan M. Levine, Jack Lubin, Andrew W. Mann, Bob Massey, Kim K. McLeod, Matthew W. Mengel, Jose A. Muñoz, Felipe Murgas, Enric Palle, Peter Plavchan, Adam Popowicz, Don J. Radford, George R. Ricker, Pamela Rowden, Boris S. Safonov, Arjun B. Savel, Richard P. Schwarz, S. Seager, Ramotholo Sefako, Avi Shporer, Gregor Srdoc, Ivan S. Strakhov, Johanna K. Teske, C. G. Tinney, Dakotah Tyler, Robert A. Wittenmyer, Hui Zhang, Carl Ziegler
Institutions: Princeton University, Michigan State University, University of Southern Queensland, Center for Astrophysics Harvard & Smithsonian, George Mason University, University of California, Los Angeles, University of Liège, Instituto de Astrofísica de Canarias, Massachusetts Institute of Technology, California Institute of Technology, NASA Exoplanet Science Institute, Adolfo Ibáñez University, Millennium Institute of Astrophysics, Carnegie Institution for Science, Earth and Planets Laboratory, American Association of Variable Star Observers, University of California, Berkeley, Universitat de València, Tsinghua University, Max Planck Institute for Astronomy, Ames Research Center, Swarthmore College, University of California, Riverside, University of Louisville, Silesian University of Technology, University of California, Irvine, University of North Carolina at Chapel Hill, Wellesley College, Universidad de La Laguna, Royal Astronomical Society, Lomonosov Moscow State University, University of Maryland, College Park, South African Astronomical Observatory, UNSW Sydney, Chinese Academy of Sciences, Shanghai Astronomical Observatory, Stephen F. Austin State University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,499
Funders: National Science Foundation, Smithsonian Institution, National Aeronautics and Space Administration, W. M. Keck Foundation, John Templeton Foundation, George Mason University, California Institute of Technology, Harvard University, University of Louisville, University of Texas at Austin, NASA Exoplanet Science Institute, University of New South Wales, University of Southern Queensland, Ministry of Science, ICT and Future Planning, Nuclear Safety and Security Commission, Nanjing University, Agencia Nacional de Investigación y Desarrollo, Ames Research Center, Jet Propulsion Laboratory, Smithsonian Astrophysical Observatory, Science Mission Directorate, Australian Research Council
Awards: Light from darkness: understanding extrasolar planets from their shadows, The MEarth Project: An All Sky Survey of the Closest Low-mass Stars to Uncover the Very Best Terrestrial Exoplanets for Further Study, G2539692506, Catch me if you can: The race to rescue the smallest planets, THE BULK AND ATMOSPHERIC COMPOSITION OF GIANT EXOPLANETS, The MEarth Project: A Transit Search for Rocky Planets in the Habitable Zones of Low-mass Stars, DISCOVERY AND ATMOSPHERIC RECONNAISSANCE OF THE MOST SPECTROSCOPICALLY ACCESSIBLE TEMPERATE TRANSITING TERRESTRIAL EXOPLANETS, G57481727, G6584649838, The MEarth Project: An All-sky Transit Search for Rocky Planets in the Habitable Zones of Low-mass Stars, 2009 Waterman Award, G715574138, G722162065, MINERVA-Australis: A dedicated southern hemisphere exoplanet observatory
OpenAlex ID: W4281251662