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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Three Long-period Transiting Giant Planets from TESS
Astronomical Journal, Volume 165, No. 6, Article 227, Year 2023
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Description
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. © 2023. The Author(s). Published by the American Astronomical Society.
Authors & Co-Authors
Brahm, Rafael
Chile, Santiago
Universidad Adolfo Ibáñez
Chile, Santiogo
Millennium Institute for Astrophysics
Ulmer-Moll, Solène
Switzerland, Bern
University of Bern
Switzerland, Geneva
Faculty of Science
Hobson, Melissa J.
Chile, Santiogo
Millennium Institute for Astrophysics
Germany, Heidelberg
Max Planck Institute for Astronomy
Jordán, Andrés
Chile, Santiago
Universidad Adolfo Ibáñez
Chile, Santiogo
Millennium Institute for Astrophysics
Henning, Th K.
Germany, Heidelberg
Max Planck Institute for Astronomy
Trifonov, Trifon
Germany, Heidelberg
Max Planck Institute for Astronomy
Bulgaria, Sofia
Sofia University St. Kliment Ohridski
Jones, Matías I.
Chile, Santiago
European Southern Observatory Santiago
Schlecker, Martin
United States, Tucson
The University of Arizona
Espinoza, Néstor
United States, Baltimore
Space Telescope Science Institute
Rojas, Felipe I.
Chile, Santiogo
Millennium Institute for Astrophysics
Chile, Santiago
Pontificia Universidad Católica de Chile
Torres, Pascal J.
Chile, Santiogo
Millennium Institute for Astrophysics
Chile, Santiago
Pontificia Universidad Católica de Chile
Sarkis, Paula
Germany, Heidelberg
Max Planck Institute for Astronomy
Kossakowski, Diana E.
Germany, Heidelberg
Max Planck Institute for Astronomy
Hartman, Joel D.
United States, Princeton
Princeton University
Suc, Vincent
Chile, Santiago
Universidad Adolfo Ibáñez
Bouchy, François
Switzerland, Geneva
Faculty of Science
Chaverot, Guillaume
Switzerland, Geneva
Faculty of Science
Grieves, Nolan
Switzerland, Geneva
Faculty of Science
Lendl, Monika A.
Switzerland, Geneva
Faculty of Science
Suárez, Olga
France, Nice
Laboratoire Joseph-louis Lagrange
Guillot, Tristan
France, Nice
Laboratoire Joseph-louis Lagrange
Triaud, Amaury H.M.J.
United Kingdom, Birmingham
University of Birmingham
Crouzet, Nicolas
Netherlands, Noordwijk Aan Zee
Estec - European Space Research and Technology Centre
Dransfield, Georgina
United Kingdom, Birmingham
University of Birmingham
Cloutier, Ryan
Canada, Hamilton
Mcmaster University
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Barkaoui, Khalid
Belgium, Liege
Université de Liège
United States, Cambridge
Massachusetts Institute of Technology
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Schwarz, Richard P.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Stockdale, Chris J.
Unknown Affiliation
Harris, Mallory
United States, Albuquerque
The University of new Mexico
Mireles, Ismael
United States, Albuquerque
The University of new Mexico
Evans, Phil
Chile, Coquimbo
El Sauce Observatory
Mann, Andrew W.
United States, Chapel Hill
The University of North Carolina at Chapel Hill
Ziegler, Carl A.
Unknown Affiliation
Dragomir, Diana
Unknown Affiliation
Villanueva, Steven
Unknown Affiliation
Mordasini, Christoph
Unknown Affiliation
Ricker, George R.
Unknown Affiliation
Vanderspek, Roland K.
Unknown Affiliation
Latham, David W.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Seager, Sara
Unknown Affiliation
Winn, Joshua N.
United States, Princeton
Princeton University
Jenkins, Jon M.
Unknown Affiliation
Vezie, Michael L.
Unknown Affiliation
Daylan, Tansu
United States, Princeton
Princeton University
Collins, Karen A.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Caldwell, Douglas A.
Unknown Affiliation
Ciardi, David R.
Unknown Affiliation
Palle´, Enric B.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Murgas, Felipe
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Statistics
Authors: 49
Affiliations: 24
Identifiers
Doi:
10.3847/1538-3881/accadd
ISSN:
00046256
Study Design
Cross Sectional Study
Cohort Study
Study Approach
Quantitative