The Astronomical Journal (Jan 2023)
Three Long-period Transiting Giant Planets from TESS
- Rafael Brahm,
- Solène Ulmer-Moll,
- Melissa J. Hobson,
- Andrés Jordán,
- Thomas Henning,
- Trifon Trifonov,
- Matías I. Jones,
- Martin Schlecker,
- Nestor Espinoza,
- Felipe I. Rojas,
- Pascal Torres,
- Paula Sarkis,
- Marcelo Tala,
- Jan Eberhardt,
- Diana Kossakowski,
- Diego J. Muñoz,
- Joel D. Hartman,
- Gavin Boyle,
- Vincent Suc,
- François Bouchy,
- Adrien Deline,
- Guillaume Chaverot,
- Nolan Grieves,
- Monika Lendl,
- Olga Suarez,
- Tristan Guillot,
- Amaury H. M. J. Triaud,
- Nicolas Crouzet,
- Georgina Dransfield,
- Ryan Cloutier,
- Khalid Barkaoui,
- Rick P. Schwarz,
- Chris Stockdale,
- Mallory Harris,
- Ismael Mireles,
- Phil Evans,
- Andrew W. Mann,
- Carl Ziegler,
- Diana Dragomir,
- Steven Villanueva,
- Christoph Mordasini,
- George Ricker,
- Roland Vanderspek,
- David W. Latham,
- Sara Seager,
- Joshua N. Winn,
- Jon M. Jenkins,
- Michael Vezie,
- Allison Youngblood,
- Tansu Daylan,
- Karen A. Collins,
- Douglas A. Caldwell,
- David R. Ciardi,
- Enric Palle,
- Felipe Murgas
Affiliations
- Rafael Brahm
- ORCiD
- Facultad de Ingeniera y Ciencias, Universidad Adolfo Ibáñez , Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile ; [email protected]; Millennium Institute for Astrophysics , Chile; Data Observatory Foundation , Chile
- Solène Ulmer-Moll
- ORCiD
- Physikalisches Institut, University of Bern , Gesellsschaftstrasse 6, 3012 Bern, Switzerland; Observatoire astronomique de l’Université de Genève , chemin Pegasi 51, 1290 Versoix, Switzerland
- Melissa J. Hobson
- ORCiD
- Millennium Institute for Astrophysics , Chile; Max-Planck-Institut für Astronomie , Königstuhl 17, D-69117 Heidelberg, Germany
- Andrés Jordán
- ORCiD
- Facultad de Ingeniera y Ciencias, Universidad Adolfo Ibáñez , Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile ; [email protected]; Millennium Institute for Astrophysics , Chile; Data Observatory Foundation , Chile
- Thomas Henning
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, D-69117 Heidelberg, Germany
- Trifon Trifonov
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, D-69117 Heidelberg, Germany; Department of Astronomy, Sofia University “St Kliment Ohridski,” 5 James Bourchier Boulevard, BG-1164 Sofia, Bulgaria
- Matías I. Jones
- European Southern Observatory , Casilla 19001, Santiago, Chile
- Martin Schlecker
- ORCiD
- Steward Observatory and Department of Astronomy, The University of Arizona , Tucson, AZ 85721, USA
- Nestor Espinoza
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Felipe I. Rojas
- ORCiD
- Millennium Institute for Astrophysics , Chile; Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile , Chile
- Pascal Torres
- ORCiD
- Millennium Institute for Astrophysics , Chile; Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile , Chile
- Paula Sarkis
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, D-69117 Heidelberg, Germany
- Marcelo Tala
- Facultad de Ingeniera y Ciencias, Universidad Adolfo Ibáñez , Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile ; [email protected]
- Jan Eberhardt
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, D-69117 Heidelberg, Germany
- Diana Kossakowski
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, D-69117 Heidelberg, Germany
- Diego J. Muñoz
- ORCiD
- Facultad de Ingeniera y Ciencias, Universidad Adolfo Ibáñez , Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile ; [email protected]; Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University , 2145 Sheridan Road, Evanston, IL 60208, USA
- Joel D. Hartman
- ORCiD
- Department of Astrophysical Sciences, Princeton University , 4 Ivy Lane, Princeton, NJ 08544, USA
- Gavin Boyle
- El Sauce Observatory , Coquimbo Province, Chile; Cavendish Laboratory , J J Thomson Avenue, Cambridge, CB3 0HE, UK
- Vincent Suc
- ORCiD
- Facultad de Ingeniera y Ciencias, Universidad Adolfo Ibáñez , Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile ; [email protected]; El Sauce Observatory—Obstech , Chile
- François Bouchy
- ORCiD
- Observatoire astronomique de l’Université de Genève , chemin Pegasi 51, 1290 Versoix, Switzerland
- Adrien Deline
- Observatoire astronomique de l’Université de Genève , chemin Pegasi 51, 1290 Versoix, Switzerland
- Guillaume Chaverot
- ORCiD
- Observatoire astronomique de l’Université de Genève , chemin Pegasi 51, 1290 Versoix, Switzerland
- Nolan Grieves
- Observatoire astronomique de l’Université de Genève , chemin Pegasi 51, 1290 Versoix, Switzerland
- Monika Lendl
- ORCiD
- Observatoire astronomique de l’Université de Genève , chemin Pegasi 51, 1290 Versoix, Switzerland
- Olga Suarez
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Bd de l’Observatoire, CS 34229, F-06304 Nice cedex 4, France
- Tristan Guillot
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Bd de l’Observatoire, CS 34229, F-06304 Nice cedex 4, France
- Amaury H. M. J. Triaud
- ORCiD
- School of Physics & Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT, UK
- Nicolas Crouzet
- ORCiD
- European Space Agency (ESA), European Space Research and Technology Centre (ESTEC) , Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
- Georgina Dransfield
- ORCiD
- School of Physics & Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT, UK
- Ryan Cloutier
- ORCiD
- Dept. of Physics & Astronomy, McMaster University , 1280 Main Street West, Hamilton, ON L8S 4L8, Canada; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Khalid Barkaoui
- ORCiD
- Astrobiology Research Unit, Université de Liège , Allée du 6 Août 19C, B-4000 Liège, Belgium; Department of Earth, Atmospheric and Planetary Science, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain
- Rick P. Schwarz
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Chris Stockdale
- ORCiD
- Hazelwood Observatory , Australia
- Mallory Harris
- ORCiD
- Department of Physics and Astronomy, University of New Mexico , 210 Yale Boulevard NE, Albuquerque, NM 87106, USA
- Ismael Mireles
- ORCiD
- Department of Physics and Astronomy, University of New Mexico , 210 Yale Boulevard NE, Albuquerque, NM 87106, USA
- Phil Evans
- ORCiD
- El Sauce Observatory , Coquimbo Province, Chile
- Andrew W. Mann
- ORCiD
- Department of Physics and Astronomy, The University of North Carolina at Chapel Hill , Chapel Hill, NC 27599, USA
- Carl Ziegler
- Department of Physics, Engineering and Astronomy, Stephen F. Austin State University , 1936 North Street, Nacogdoches, TX 75962, USA
- Diana Dragomir
- ORCiD
- Department of Physics and Astronomy, University of New Mexico , 1919 Lomas Boulevard NE, Albuquerque, NM 87131, USA
- Steven Villanueva
- ORCiD
- NASA Goddard Space Flight Center , Exoplanets and Stellar Astrophysics Laboratory (Code 667), Greenbelt, MD 20771, USA
- Christoph Mordasini
- ORCiD
- Center for Space and Habitability, Universitat Bern , Gesellshaftsstrasse 6, 3012 Bern, Switzerland
- George Ricker
- ORCiD
- Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
- Roland Vanderspek
- ORCiD
- Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
- David W. Latham
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Sara Seager
- ORCiD
- Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology , Cambridge, MA 02139, USA; Department of Aeronautics and Astronautics , MIT, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Joshua N. Winn
- ORCiD
- Department of Astrophysical Sciences, Princeton University , 4 Ivy Lane, Princeton, NJ 08544, USA
- Jon M. Jenkins
- ORCiD
- NASA Ames Research Center , Moffett Field, CA 94035, USA
- Michael Vezie
- Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
- Allison Youngblood
- ORCiD
- NASA Goddard Space Flight Center , 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Tansu Daylan
- ORCiD
- Department of Astrophysical Sciences, Princeton University , 4 Ivy Lane, Princeton, NJ 08544, USA
- Karen A. Collins
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Douglas A. Caldwell
- ORCiD
- SETI Institute/NASA Ames Research Center , USA
- David R. Ciardi
- ORCiD
- Caltech/IPAC-NASA Exoplanet Science Institute , 770 S. Wilson Avenue, Pasadena, CA 91106, USA
- Enric Palle
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain
- Felipe Murgas
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- DOI
- https://doi.org/10.3847/1538-3881/accadd
- Journal volume & issue
-
Vol. 165,
no. 6
p. 227
Abstract
We report the discovery and orbital characterization of three new transiting warm giant planets. These systems were initially identified as presenting single-transit events in the light curves generated from the full-frame images of the Transiting Exoplanet Survey Satellite. Follow-up radial velocity measurements and additional light curves were used to determine the orbital periods and confirm the planetary nature of the candidates. The planets orbit slightly metal-rich late F- and early G-type stars. We find that TOI 4406b has a mass of M _P = 0.30 ± 0.04 M _J , a radius of R _P = 1.00 ± 0.02 R _J , and a low-eccentricity orbit ( e = 0.15 ± 0.05) with a period of P = 30.08364 ±0.00005 days. TOI 2338b has a mass of M _P = 5.98 ± 0.20 M _J , a radius of R _P = 1.00 ± 0.01 R _J , and a highly eccentric orbit ( e = 0.676 ± 0.002) with a period of P = 22.65398 ± 0.00002 days. Finally, TOI 2589b has a mass of M _P = 3.50 ± 0.10 M _J , a radius of R _P = 1.08 ± 0.03 R _J , and an eccentric orbit ( e = 0.522 ± 0.006) with a period of P = 61.6277 ± 0.0002 days. TOI 4406b and TOI 2338b are enriched in metals compared to their host stars, while the structure of TOI 2589b is consistent with having similar metal enrichment to its host star.
Keywords