Characterisation of the warm-Jupiter TOI-1130 system with CHEOPS and a photo-dynamical approach
Journal article, 2024
Context. Among the thousands of exoplanets discovered to date, approximately a few hundred gas giants on short-period orbits are classified as 'lonely'and only a few are in a multi-planet system with a smaller companion on a close orbit. The processes that formed multi-planet systems hosting gas giants on close orbits are poorly understood, and only a few examples of this kind of system have been observed and well characterised. Aims. Within the contest of a multi-planet system hosting a gas giant on short orbits, we characterise the TOI-1130 system by measuring masses and orbital parameters. This is a two-transiting planet system with a Jupiter-like planet (c) on a 8.35 days orbit and a Neptune-like planet (b) on an inner (4.07 days) orbit. Both planets show strong anti-correlated transit timing variations (TTVs). Furthermore, radial velocity (RV) analysis showed an additional linear trend, a possible hint of a non-transiting candidate planet on a far outer orbit. Methods. Since 2019, extensive transit and radial velocity observations of the TOI-1130 have been acquired using TESS and various ground-based facilities. We present a new photo-dynamical analysis of all available transit and RV data, with the addition of new CHEOPS and ASTEP+ data, which achieve the best precision to date on the planetary radii and masses and on the timings of each transit. Results. We were able to model interior structure of planet b constraining the presence of a gaseous envelope of H/He, while it was not possible to assess the possible water content. Furthermore, we analysed the resonant state of the two transiting planets, and we found that they lie just outside the resonant region. This could be the result of the tidal evolution that the system underwent. We obtained both masses of the planets with a precision of less than 1.5%, and radii with a precision of about 1% and 3% for planet b and c, respectively.
Techniques: photometric
Methods: data analysis
Methods: observational
Planetary systems
Telescopes
Author
L. Borsato
Istituto nazionale di astrofisica (INAF)
D. Degen
Swiss Federal Institute of Technology in Zürich (ETH)
A. Leleu
University of Geneva
University of Bern
M.J. Hooton
University of Cambridge
J. A. Egger
University of Bern
A. Bekkelien
University of Geneva
A. Brandeker
Stockholm University
A. Collier Cameron
University of St Andrews
Maximilian N. Günther
European Space Agency (ESA)
Valerio Nascimbeni
Istituto nazionale di astrofisica (INAF)
Carina Persson
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
A. Bonfanti
Institut fur Weltraumforschung
T.G. Wilson
The University of Warwick
A. Correia
University of Coimbra
Tiziano Zingales
University of Turin
Istituto nazionale di astrofisica (INAF)
T. Guillot
University of Padua
Amaury Triaud
Laboratoire Joseph-Louis Lagrange
Giampaolo P. Piotto
University of Turin
Istituto nazionale di astrofisica (INAF)
D. Gandolfi
University of Birmingham
L. Abe
University of Padua
Y. Alibert
University of Bern
R. Alonso
University of La Laguna
Instituto de Astrofísica de Canarias
T. Bárczy
Admatis
D. Barrado Navascues
European Space Agency (ESA)
S.C.C. Barros
University of Porto
W. Baumjohann
Institut fur Weltraumforschung
T. Beck
University of Bern
Philippe Bendjoya
University of Padua
W. Benz
University of Bern
N. Billot
University of Geneva
C. Broeg
University of Bern
M.-D. Busch
University of Bern
Szilard Csizmadia
German Aerospace Center (DLR)
P. E. Cubillos
Institut fur Weltraumforschung
Istituto nazionale di astrofisica (INAF)
Melvyn B. Davies
Lund University
M. Deleuil
Laboratoire d'Astrophysique de Marseille
A. Deline
University of Geneva
L. Delrez
University of Liège
KU Leuven
O. Demangeon
University of Porto
B.O. Demory
University of Bern
A. Derekas
Eötvös Loránd University (ELTE)
Billy Edwards
Netherlands Institute for Space Research (SRON)
D. Ehrenreich
University of Geneva
Anders Erikson
German Aerospace Center (DLR)
A. Fortier
University of Bern
L. Fossati
Institut fur Weltraumforschung
Malcolm Fridlund
Leiden University
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
K. Gazeas
University of Athens
Michaël Gillon
University of Liège
M. Gudel
University of Vienna
A. Heitzmann
University of Geneva
Ch. Helling
Technische Universität Graz
Institut fur Weltraumforschung
S. Hoyer
Laboratoire d'Astrophysique de Marseille
K. Isaak
European Space Agency (ESA)
L. L. Kiss
Hungarian Academy of Sciences
Eötvös Loránd University (ELTE)
Judith Korth
Lund University
K. W.F. Lam
German Aerospace Center (DLR)
J. Laskar
Paris Observatory
A. L. des Etangs
Institut d 'Astrophysique de Paris
M. Lendl
University of Geneva
D. Magrin
Istituto nazionale di astrofisica (INAF)
L. Marafatto
Istituto nazionale di astrofisica (INAF)
P. Maxted
Keele University
M. Mecina
University of Vienna
Djamel Mékarnia
University of Padua
C. Mordasini
University of Bern
D. Mura
Programma Nazionale di Ricerche in Antartide (PNRA)
Consiglo Nazionale Delle Richerche
G. Olofsson
Stockholm University
R. Ottensamer
University of Vienna
I. Pagano
Istituto nazionale di astrofisica (INAF)
Enric Palle
University of La Laguna
Instituto de Astrofísica de Canarias
G. Peter
German Aerospace Center (DLR)
Don L. Pollacco
The University of Warwick
D. Queloz
Swiss Federal Institute of Technology in Zürich (ETH)
University of Cambridge
Roberto Ragazzoni
Istituto nazionale di astrofisica (INAF)
University of Turin
N. Rando
European Space Agency (ESA)
F. Ratti
European Space Agency (ESA)
H. Rauer
German Aerospace Center (DLR)
Freie Universität Berlin
I. Ribas
Spanish National Research Council (CSIC)
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
S. Salmon
University of Geneva
N. C. Santos
University of Porto
Gaetano Scandariato
Istituto nazionale di astrofisica (INAF)
D. Segransan
University of Geneva
A.E. Simon
University of Bern
A. M.S. Smith
German Aerospace Center (DLR)
S.G. Sousa
University of Porto
M. Stalport
University of Liège
Olga Suárez
University of Padua
S. Sulis
Laboratoire d'Astrophysique de Marseille
G.M. Szabó
Eötvös Loránd University (ELTE)
S. Udry
University of Geneva
V. Van Grootel
University of Liège
J. Venturini
University of Geneva
E. Villaver
University of La Laguna
Instituto de Astrofísica de Canarias
N. A. Walton
University of Cambridge
D. Wolter
German Aerospace Center (DLR)
Astronomy and Astrophysics
0004-6361 (ISSN) 1432-0746 (eISSN)
Vol. 689 A52Subject Categories (SSIF 2025)
Astronomy, Astrophysics, and Cosmology
DOI
10.1051/0004-6361/202450974
Related datasets
TOI-1130 CHEOPS observations : J/A+A/689/A52 [dataset]
URI: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/689/A52