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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Confirmation and characterisation of three giant planets detected by TESS from the FIES/NOT and Tull/McDonald spectrographs
Astronomy and Astrophysics, Volume 667, Article A22, Year 2022
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Description
We report the confirmation and characterisation of TOI-1820 b, TOI-2025 b, and TOI-2158 b, three Jupiter-sized planets on short-period orbits around G-Type stars detected by TESS. Through our ground-based efforts using the FIES and Tull spectrographs, we have confirmed these planets and characterised their orbits, and find periods of around 4.9 d, 8.9 d, and 8.6 d for TOI-1820 b, TOI-2025 b, and TOI-2158 b, respectively. The sizes of the planets range from 0.96 to 1.14 Jupiter radii, and their masses are in the range from 0.8 to 4.4 Jupiter masses. For two of the systems, namely TOI-2025 and TOI-2158, we see a long-Term trend in the radial velocities, indicating the presence of an outer companion in each of the two systems. For TOI-2025 we furthermore find the star to be well aligned with the orbit, with a projected obliquity of 9-31+33. As these planets are all found in relatively bright systems (V ∼ 10.9-11.6 mag), they are well suited for further studies, which could help shed light on the formation and migration of hot and warm Jupiters. ©
Authors & Co-Authors
Knudstrup, Emil
Spain, Brena Baja
Nordic Optical Telescope
Denmark, Aarhus
Aarhus Universitet
Serrano, Luisa Maria
Italy, Turin
Università Degli Studi Di Torino
Gandolfi, Davide
Italy, Turin
Università Degli Studi Di Torino
Albrecht, Simon H.
Denmark, Aarhus
Aarhus Universitet
Cochran, William D.
United States, Austin
The University of Texas at Austin
Endl, Michael
United States, Austin
The University of Texas at Austin
MacQueen, Phillip J.
United States, Austin
The University of Texas at Austin
Tronsgaard, Rene
Denmark, Lyngby
Technical University of Denmark
Bieryla, Allyson
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Buchhave, Lars A.
Denmark, Lyngby
Technical University of Denmark
Stassun, Keivan G.
United States, Nashville
Vanderbilt University
Collins, Karen A.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Nowak, Grzegorz
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Deeg, Hans J.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Barkaoui, Khalid
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Belgium, Liege
Université de Liège
United States, Cambridge
Massachusetts Institute of Technology
Safonov, Boris S.
Russian Federation, Moscow
Lomonosov Moscow State University
Strakhov, Ivan A.
Russian Federation, Moscow
Lomonosov Moscow State University
Belinski, A. A.
Russian Federation, Moscow
Lomonosov Moscow State University
Twicken, Joseph D.
United States, Mountain View
Seti Institute
United States, Moffett Field
Nasa Ames Research Center
Jenkins, Jon M.
United States, Moffett Field
Nasa Ames Research Center
Howard, Andrew W.
United States, Pasadena
California Institute of Technology
United States, Berkeley
University of California, Berkeley
Isaacson, Howard T.
United States, Pasadena
California Institute of Technology
United States, Berkeley
University of California, Berkeley
Australia, Toowoomba
University of Southern Queensland
Winn, Joshua N.
United States, Princeton
Princeton University
Collins, Kevin I.
United States, Fairfax
George Mason University
Conti, Dennis M.
United States, Cambridge
American Association of Variable Star Observers
Fúrész, Gábor
United States, Cambridge
Massachusetts Institute of Technology
Gan, Tianjun
China, Beijing
Tsinghua University
Kielkopf, John F.
United States, Louisville
University of Louisville
Massey, Bob
United States, Landers
Villa '39 Observatory
Murgas, Felipe
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Murphy, Lauren G.
United States, Kutztown
Kutztown University
Palle´, Enric B.
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Spain, San Cristobal de la Laguna
Universidad de la Laguna
Quinn, Samuel N.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Reed, Phillip A.
Denmark, Lyngby
Technical University of Denmark
Ricker, George R.
United States, Cambridge
Massachusetts Institute of Technology
Seager, Sara
United States, Cambridge
Massachusetts Institute of Technology
Shiao, Bernard
United States, Baltimore
Space Telescope Science Institute
Schwarz, Richard P.
United States, Voorheesville
Patashnick Voorheesville Observatory
Srdoč, Gregor
Croatia, Viskovo
Kotizarovci Observatory
Watanabe, David
United States, Fredericksburg
Planetary Discoveries
Statistics
Citations: 6
Authors: 40
Affiliations: 28
Identifiers
Doi:
10.1051/0004-6361/202243656
ISSN:
00046361