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TOI-969: a late-K d...
TOI-969: a late-K dwarf with a hot mini-Neptune in the desert and an eccentric cold Jupiter
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- Lillo-Box, J. (author)
- European Space Astronomy Centre (ESAC)
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- Gandolfi, D. (author)
- Universita degli Studi di Torino,University of Turin
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- Armstrong, D. J. (author)
- The University of Warwick
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- Collins, K. A. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Nielsen, L. D. (author)
- Université de Genève,University of Geneva,European Southern Observatory (ESO)
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- Luque, R. (author)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Korth, Judith, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Sousa, S. G. (author)
- Universidade do Porto,University of Porto
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- Quinn, S. N. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Acuña, L. (author)
- Laboratoire d'Astrophysique de Marseille
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- Howell, S. B. (author)
- NASA Ames Research Center
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- Morello, Giuseppe (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Hellier, Coel (author)
- Keele University
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- Giacalone, S. (author)
- University of California
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- Hoyer, S. (author)
- Laboratoire d'Astrophysique de Marseille
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- Stassun, K. (author)
- Vanderbilt University
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- Palle, E. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Aguichine, A. (author)
- Laboratoire d'Astrophysique de Marseille
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- Mousis, O. (author)
- Laboratoire d'Astrophysique de Marseille
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- Adibekyan, V. (author)
- Universidade do Porto,University of Porto
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- Silva, T. Azevedo (author)
- Universidade do Porto,University of Porto
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- Barrado, D. (author)
- European Space Astronomy Centre (ESAC)
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- Deleuil, M. (author)
- Laboratoire d'Astrophysique de Marseille
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- Eastman, J. D. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Fukui, A. (author)
- University of Tokyo, Japan,Instituto de Astrofísica de Canarias
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- Hawthorn, F. (author)
- The University of Warwick
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- Irwin, J. M. (author)
- University Of Cambridge
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- Jenkins, Jon M. (author)
- NASA Ames Research Center
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- Latham, D. W. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Muresan, Alexandra, 1997 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Narita, N. (author)
- University of Tokyo, Japan,Instituto de Astrofísica de Canarias,National Institutes of Natural Sciences (NINS)
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- Persson, Carina, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Santerne, A. (author)
- Laboratoire d'Astrophysique de Marseille
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- Santos, N. C. (author)
- Universidade do Porto,University of Porto
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- Savel, A. B. (author)
- University of Maryland
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- Osborn, H. P. (author)
- Universität Bern,University of Bern
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- Teske, J. K. (author)
- Carnegie Observatories
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- Wheatley, P. J. (author)
- The University of Warwick
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- Winn, J. N. (author)
- Princeton University
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- Barros, S. C.C. (author)
- Universidade do Porto,University of Porto
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- Butler, R. P. (author)
- Carnegie Observatories
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- Caldwell, D. A. (author)
- NASA Ames Research Center
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- Charbonneau, D. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Cloutier, R. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Crane, J. D. (author)
- Carnegie Observatories
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- Demangeon, O. (author)
- Universidade do Porto,University of Porto
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- Díaz, R. F. (author)
- Consejo Nacional de Investigaciones Cientificas y Tecnicas
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- Dumusque, X. (author)
- Université de Genève,University of Geneva
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- Esposito, M. (author)
- Thüringer Landessternwarte Tautenburg
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- Falk, B. (author)
- Space Telescope Science Institute (STScI)
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- Gill, H. (author)
- University of California
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- Hojjatpanah, S. (author)
- Laboratoire d'Astrophysique de Marseille
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- Kreidberg, L. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Mireles, Ismael (author)
- University of New Mexico
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- Osborn, A. (author)
- The University of Warwick
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- Ricker, G. R. (author)
- Massachusetts Institute of Technology (MIT)
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- Rodriguez, J. E. (author)
- Michigan State University
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- Schwarz, R. P. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Seager, S. (author)
- Massachusetts Institute of Technology (MIT)
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- Bell, J. Serrano (author)
- Universidad Nacional de La Plata (UNLP),National University of La Plata (UNLP)
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- Shectman, S.A. (author)
- Carnegie Observatories
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- Shporer, Avi (author)
- Massachusetts Institute of Technology (MIT)
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- Vezie, Michael L. (author)
- Massachusetts Institute of Technology (MIT)
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- Wang, S. X. (author)
- Tsinghua University
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- Zhou, G. (author)
- University of Southern Queensland
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(creator_code:org_t)
- 2023-01-24
- 2023
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 669
- Related links:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Context. The current architecture of a given multi-planetary system is a key fingerprint of its past formation and dynamical evolution history. Long-term follow-up observations are key to complete their picture. Aims. In this paper, we focus on the confirmation and characterization of the components of the TOI-969 planetary system, where TESS detected a Neptune-size planet candidate in a very close-in orbit around a late K-dwarf star. Methods. We use a set of precise radial velocity observations from HARPS, PFS, and CORALIE instruments covering more than two years in combination with the TESS photometric light curve and other ground-based follow-up observations to confirm and characterize the components of this planetary system. Results. We find that TOI-969 b is a transiting close-in (Pb ∼ 1.82 days) mini-Neptune planet (Formula Presented), placing it on the lower boundary of the hot-Neptune desert (Teq,b = 941 ± 31 K). The analysis of its internal structure shows that TOI-969 b is a volatile-rich planet, suggesting it underwent an inward migration. The radial velocity model also favors the presence of a second massive body in the system, TOI-969 c, with a long period of (Formula Presented) days, a minimum mass of (Formula Presented), and a highly eccentric orbit of (Formula Presented). Conclusions. The TOI-969 planetary system is one of the few around K-dwarfs known to have this extended configuration going from a very close-in planet to a wide-separation gaseous giant. TOI-969 b has a transmission spectroscopy metric of 93 and orbits a moderately bright (G = 11.3 mag) star, making it an excellent target for atmospheric studies. The architecture of this planetary system can also provide valuable information about migration and formation of planetary systems.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Inbäddad systemteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Embedded Systems (hsv//eng)
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
Keyword
- planets and satellites: fundamental parameters
- planets and satellites: composition
- techniques: photometric
- planets and satellites: detection
- stars: individual: TOI-969
- techniques: radial velocities
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
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Lillo-Box, J.
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Gandolfi, D.
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Armstrong, D. J.
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Collins, K. A.
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Nielsen, L. D.
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Luque, R.
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show more...
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Korth, Judith, 1 ...
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Sousa, S. G.
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Quinn, S. N.
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Acuña, L.
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Howell, S. B.
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Morello, Giusepp ...
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Hellier, Coel
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Giacalone, S.
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Hoyer, S.
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Stassun, K.
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Palle, E.
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Aguichine, A.
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Mousis, O.
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Adibekyan, V.
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Silva, T. Azeved ...
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Barrado, D.
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Deleuil, M.
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Eastman, J. D.
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Fukui, A.
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Hawthorn, F.
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Irwin, J. M.
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Jenkins, Jon M.
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Latham, D. W.
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Muresan, Alexand ...
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Narita, N.
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Persson, Carina, ...
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Santerne, A.
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Santos, N. C.
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Savel, A. B.
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Osborn, H. P.
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Teske, J. K.
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Wheatley, P. J.
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Winn, J. N.
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Barros, S. C.C.
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Butler, R. P.
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Caldwell, D. A.
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Charbonneau, D.
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Cloutier, R.
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Crane, J. D.
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Demangeon, O.
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Díaz, R. F.
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Dumusque, X.
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Esposito, M.
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Falk, B.
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Gill, H.
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Hojjatpanah, S.
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Kreidberg, L.
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Mireles, Ismael
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Osborn, A.
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Ricker, G. R.
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Rodriguez, J. E.
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Schwarz, R. P.
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Seager, S.
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Bell, J. Serrano
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Shectman, S.A.
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Shporer, Avi
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Vezie, Michael L ...
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Wang, S. X.
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Zhou, G.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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and Embedded Systems
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Computer and Inf ...
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and Computer Science ...
- Articles in the publication
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Astronomy and As ...
- By the university
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Chalmers University of Technology