A joint effort to discover and characterize two resonant mini-Neptunes around TOI-1803 with TESS, HARPS-N, and CHEOPS

Zingales, T. and Malavolta, L. and Borsato, L. and Turrini, D. and Bonfanti, A. and Polychroni, D. and Mantovan, G. and Nardiello, D. and Nascimbeni, V. and Lanza, A. F. and Bekkelien, A. and Sozzetti, A. and Broeg, C. and Naponiello, L. and Lendl, M. and Bonomo, A. S. and Simon, A. E. and Desidera, S. and Piotto, G. and Mancini, L. and Hooton, M. J. and Bignamini, A. and Egger, J. A. and Maggio, A. and Alibert, Y. and Locci, D. and Delrez, L. and Biassoni, F. and Fossati, L. and Cabona, L. and Lacedelli, G. and Carleo, I. and Leonardi, P. and Andreuzzi, G. and Brandeker, A. and Cosentino, R. and Correia, A. C. M. and Claudi, R. and Alonso, R. and Damasso, M. and Wilson, T. G. and Bàrczy, T. and Pinamonti, M. and Baker, D. M. H. and Barkaoui, K. and Barrado Navascues, D. and Barros, S. C. C. and Baumjohann, W. and Beck, T. and Beichman, C. and Benz, W. and Bieryla, A. and Billot, N. and Bosch-Cabot, P. and Bouma, L. G. and Ciardi, D. R. and Collier Cameron, A. and Collins, K. A. and Crossfield, Ian J. M. and Csizmadia, Sz. and Cubillos, P. E. and Davies, M. B. and Deleuil, M. and Deline, A. and Demangeon, O. D. S. and Demory, B. -O. and Derekas, A. and Dragomir, D. and Edwards, B. and Ehrenreich, D. and Erikson, A. and Falk, B. and Fortier, A. and Fridlund, M. and Fukui, A. and Gandolfi, D. and Gazeas, K. and Gillon, M. and Gonzales, E.J. and Güdel, M. and Guerra, P. and Günther, M. N. and Heitzmann, A. and Helling, Ch. and Howell, S. B. and Isaak, K. G. and Jenkins, J. and Kiss, L. L. and Korth, J. and Lam, K. W. F. and Laskar, J. and Lecavelier des Etangs, A. and Magrin, D. and Matson, R. and Matthews, E. C. and Maxted, P. F. L. and McDermott, S. and Munari, M. and Mordasini, C. and Narita, N. and Olofsson, G. and Ottensamer, R. and Pagano, I. and Palle, E. and Peter, G. and Pollacco, D. and Queloz, D. and Ragazzoni, R. and Rando, N. and Ratti, F. and Rauer, H. and Ribas, I. and Salmon, S. J. A. J. and Santos, N. C. and Scandariato, G. and Seager, S. and Ségransan, D. and Smith, A. M. S. and Schlieder, J.E. and Schwarz, R. P. and Shporer, A. and Sousa, S. G. and Stalport, M. and Steinberger, M. and Sulis, S. and Szabó, Gy. M. and Twicken, J. D. and Udry, S. and Van Grootel, V. and Venturini, J. and Villaver, E. and Walton, N. A. and Winn, J. N. (2025) A joint effort to discover and characterize two resonant mini-Neptunes around TOI-1803 with TESS, HARPS-N, and CHEOPS. Astronomy and Astrophysics, 695, A273. EDP Sciences. doi: 10.1051/0004-6361/202451180. ISSN 0004-6361.

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Official URL: https://www.aanda.org/articles/aa/full_html/2025/03/aa51180-24/aa51180-24.html

Abstract

Context. The discovery and characterization of mini-Neptunes hold a potentially crucial impact on planetary formation and evolution theories. Estimating their orbital parameters and atmospheric properties would provide valuable hints to improve formation and atmospheric models. Aims. We present the discovery of two mini-Neptunes near a 2:1 orbital resonance configuration orbiting the K0 star TOI-1803. We describe in detail their orbital architecture and suggest some possible formation and evolution scenarios. Methods. Using CHEOPS, TESS, and HARPS-N datasets, we estimated the radius and the mass of both planets. We used a multidimensional Gaussian process with a quasi-periodic kernel to disentangle the planetary components from the stellar activity in the HARPS-N dataset. We performed dynamical modeling to explain the orbital configuration and performed planetary formation and evolution simulations. For the least dense planet, we assumed different atmospheric compositions and defined possible atmospheric scenarios with simulated JWST observations. Results. TOI-1803 b and TOI-1803 c have orbital periods of ∼6.3 and ∼12.9 days, respectively, residing in close proximity to a 2:1 orbital resonance. Ground-based photometric follow-up observations have revealed significant transit timing variations (TTV) with an amplitude of ∼10 min and ∼40 min, respectively, for planets b and -c. With the masses computed from the radial velocities dataset, we obtained a density of (0.39 ± 0.10) ρ⊕ and (0.076 ± 0.038) ρ⊕ for planets b and -c, respectively. TOI-1803 c is among the least dense mini-Neptunes currently known, and due to its inflated atmosphere, it is a suitable target for transmission spectroscopy with JWST. With NIRSpec observations, we could understand whether the planet has kept its primary atmosphere or not, which would constrain our formation models. Conclusions. We report the discovery of two mini-Neptunes close to a 2:1 orbital resonance. The detection of significant TTVs from ground-based photometry opens scenarios for a more precise mass determination. TOI-1803 c is one of the least dense mini-Neptunes known so far, and it is of great interest among the scientific community since it could constrain current formation scenarios. JWST observations could give us valuable insights to characterize this interesting system.

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Article

Title:

A joint effort to discover and characterize two resonant mini-Neptunes around TOI-1803 with TESS, HARPS-N, and CHEOPS

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Zingales, T.	Dipartimento di Fisica e Astronomia "Galileo Galilei", Universita degli Studi di Padova, Vicolo dell'Osservatorio 3, 35122, Padova, Italy; INAF, Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122, Padova, Italy	UNSPECIFIED	UNSPECIFIED
Malavolta, L.	INAF, Osservatorio Astronomico di Padova, Padova, Italy	UNSPECIFIED	UNSPECIFIED
Borsato, L.	Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova, via Marzolo 8, 35131 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Turrini, D.	INAF—Istituto di Fisica dello Spazio Interplanetario, Via Fosso del Cavaliere 100, 00133 Roma, Italy	UNSPECIFIED	UNSPECIFIED
Bonfanti, A.	Space Research Institute, Austrian Academy of Sciences, Austria	UNSPECIFIED	UNSPECIFIED
Polychroni, D.	INAF – Osservatorio Astronomico di Trieste, Via Giambattista Tiepolo 11, 34131, Trieste (TS), Italy	UNSPECIFIED	UNSPECIFIED
Mantovan, G.	Dipartimento di Fisica e Astronomia 'Galileo Galilei', Università degli Studi di Padova, Vicolo dell'Osservatorio 3, I-35122 Padova, Italy; INAF, Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Nardiello, D.	Dipartimento di Fisica e Astronomia, ’G. Galilei’, Universita degli Studi di Padova, Padova, Italy	UNSPECIFIED	UNSPECIFIED
Nascimbeni, V.	INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Lanza, A. F.	INAF - Osservatorio Astrofisico di Catania, Catania, Italy	UNSPECIFIED	UNSPECIFIED
Bekkelien, A.	Observatoire Astronomique de l'Université de Genève, Chemin Pegasi 51, 1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Sozzetti, A.	INAF – Osservatorio Astrofisico di Torino, via Osservatorio 20,10025 Pino Torinese, Italy	UNSPECIFIED	UNSPECIFIED
Broeg, C.	Physikalisches Institut, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Naponiello, L.	INAF – Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025, Pino Torinese, Italy	UNSPECIFIED	UNSPECIFIED
Lendl, M.	Observatoire de Genève, Université de Genève, Chemin Pegasi, 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Bonomo, A. S.	INAF - Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025 Pino Torinese, Italy	UNSPECIFIED	UNSPECIFIED
Simon, A. E.	Physikalisches Institut, University of Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Desidera, S.	INAF - Osservatorio Astronomico di Padova, Italy	UNSPECIFIED	UNSPECIFIED
Piotto, G.	INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Mancini, L.	INAF - Astrophysical Observatory of Turin, Turin	UNSPECIFIED	UNSPECIFIED
Hooton, M. J.	Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK	UNSPECIFIED	UNSPECIFIED
Bignamini, A.	INAF - Osservatorio Astronomico di Trieste, via G.B.Tiepolo 11, 34143-Trieste, Italy	UNSPECIFIED	UNSPECIFIED
Egger, J. A.	Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Maggio, A.	INAF, Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo ,Italy	UNSPECIFIED	UNSPECIFIED
Alibert, Y.	Physikalisches Institut, University of Bern;Observatoire de Besançon, Institut UTINAM, France	UNSPECIFIED	UNSPECIFIED
Locci, D.	INAF – Osservatorio Astronomico di Palermo, Piazza del Parlamento 1,I-90134 Palermo, Italy	UNSPECIFIED	UNSPECIFIED
Delrez, L.	Institut d Astrophysique et de Geophysique, Universite de Liege	UNSPECIFIED	UNSPECIFIED
Biassoni, F.	Università degli Studi dell'Insubria, Via Ravasi 2, 21100, Varese, Italy	UNSPECIFIED	UNSPECIFIED
Fossati, L.	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria	https://orcid.org/0000-0003-4426-9530	UNSPECIFIED
Cabona, L.	INAF – Osservatorio Astronomico di Brera, via Bianchi 46, 23807, Merate, Italy	UNSPECIFIED	UNSPECIFIED
Lacedelli, G.	Dipartimento di Fisica e Astronomia "Galileo Galilei", Universià degli Studi di Padova, Vicolo dell'Osservatorio 3, 35122, Padova, Italy; INAF, Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122, Padova, Italy	UNSPECIFIED	UNSPECIFIED
Carleo, I.	Instituto de Astrofísica de Canarias, Calle de la vía Láctea s/n, 38205, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain	UNSPECIFIED	UNSPECIFIED
Leonardi, P.	Dipartimento di Fisica e Astronomia 'Galileo Galilei', Università degli Studi di Padova, Vicolo dell'Osservatorio 3, I-35122 Padova, Italy; Dipartimento di Fisica, Università di Trento, Via Sommarive 14, 38123, Povo, Trento, Italy	UNSPECIFIED	UNSPECIFIED
Andreuzzi, G.	INAF-Fundacion Galileo Galilei, Rambla Jose Ana Fernandez Perez 7, 38712 -Brena Baja, Spain	UNSPECIFIED	UNSPECIFIED
Brandeker, A.	Department of Astronomy , Stockholm University, SE-106 91 Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Cosentino, R.	INAF-Fundacion Galileo Galilei, Rambla Jose Ana Fernandez Perez 7, 38712 -Brena Baja, Spain	UNSPECIFIED	UNSPECIFIED
Correia, A. C. M.	CFisUC, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal	UNSPECIFIED	UNSPECIFIED
Claudi, R.	INAF, Osservatorio Astronomico di Padova, Padova, Italy	UNSPECIFIED	UNSPECIFIED
Alonso, R.	Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain	UNSPECIFIED	UNSPECIFIED
Damasso, M.	INAF – Osservatorio Astrofisico di Torino, via Osservatorio 20,10025 Pino Torinese, Italy	UNSPECIFIED	UNSPECIFIED
Wilson, T. G.	Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK	UNSPECIFIED	UNSPECIFIED
Bàrczy, T.	Admatis, Miskolc, Hungary	UNSPECIFIED	UNSPECIFIED
Pinamonti, M.	INAF – Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025, Pino Torinese, Italy	UNSPECIFIED	UNSPECIFIED
Baker, D. M. H.	Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771	UNSPECIFIED	UNSPECIFIED
Barkaoui, K.	Astrobiology Research Unit, Université de Liège, Allée du 6 Août 19C, 4000, Liège, Belgium; Department of Earth, Atmospheric and Planetary Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA; Instituto de Ast	UNSPECIFIED	UNSPECIFIED
Barrado Navascues, D.	Depto. de Astrofisica, Centro de Astrobiologia (CSIC-INTA), ESAC Campus, E-28692 Villanueva de la Cañada, Madrid, Spain	UNSPECIFIED	UNSPECIFIED
Barros, S. C. C.	Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Baumjohann, W.	Space Research Institute, Austrian Academy of Sciences, Austria	UNSPECIFIED	UNSPECIFIED
Beck, T.	Center for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Beichman, C.	NASA Exoplanet Science Institute, California Institute of Technology, Pasadena, CA 91106, USA	UNSPECIFIED	UNSPECIFIED
Benz, W.	Physikalisches Institut,University of Bern, Sidlerstraße 5, CH-3012 Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Bieryla, A.	Center for Astrophysics, Harvard & Smithsonian, 60 Garden Street, Cambridge, MA, 02138, USA	UNSPECIFIED	UNSPECIFIED
Billot, N.	Observatoire de Genève, University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Bosch-Cabot, P.	Observatori Astronòmic Albanyà, Camí de Bassegoda S/N, Albanyà E-17733, Girona, Spain	UNSPECIFIED	UNSPECIFIED
Bouma, L. G.	Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA, 91125, USA	UNSPECIFIED	UNSPECIFIED
Ciardi, D. R.	NASA Exoplanet Science Institute-Caltech/IPAC, Pasadena, CA 91125, USA	UNSPECIFIED	UNSPECIFIED
Collier Cameron, A.	SUPA, School of Physics and Astronomy, University of St. Andrews	UNSPECIFIED	UNSPECIFIED
Collins, K. A.	Center for Astrophysics\|Harvard & Smithsonian, 60 Garden Street,Cambridge, MA 02138, USA	UNSPECIFIED	UNSPECIFIED
Crossfield, Ian J. M.	Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA	UNSPECIFIED	UNSPECIFIED
Csizmadia, Sz.	UNSPECIFIED	https://orcid.org/0000-0001-6803-9698	UNSPECIFIED
Cubillos, P. E.	INAF, Osservatorio Astrofisico di Torino, Via Osservatorio, 20, 10025, Pino Torinese, To, Italy; Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, Austria	UNSPECIFIED	UNSPECIFIED
Davies, M. B.	Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, 22100, Lund, Sweden	UNSPECIFIED	UNSPECIFIED
Deleuil, M.	Aix-Marseille Universite, CNRS, CNES, LAM, Marseille, France	UNSPECIFIED	UNSPECIFIED
Deline, A.	Observatoire de Genève, University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Demangeon, O. D. S.	Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762, Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Demory, B. -O.	Center for Space and Habitability, University of Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Derekas, A.	ELTE Eötvös Loránd University, Gothard Astrophysical Observatory, Szent Imre h. u. 112, 9700 Szombathely, Hungary	UNSPECIFIED	UNSPECIFIED
Dragomir, D.	Department of Physics and Astronomy, University of New Mexico, 1919 Lomas Blvd NE, Albuquerque, NM, 87131, USA	UNSPECIFIED	UNSPECIFIED
Edwards, B.	SRON Netherlands Institute for Space Research, Niels Bohrweg 4, 2333 CA, Leiden, The Netherlands	UNSPECIFIED	UNSPECIFIED
Ehrenreich, D.	Observatoire de Genève, University of Geneva, Switzerland	UNSPECIFIED	UNSPECIFIED
Erikson, A.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Falk, B.	Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA	UNSPECIFIED	UNSPECIFIED
Fortier, A.	Physikalisches Institut, University of Bern, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Fridlund, M.	Leiden Observatory, Leiden University, 2333CA Leiden, The Netherlands; Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, 439 92, Onsala, Sweden	UNSPECIFIED	UNSPECIFIED
Fukui, A.	Komaba Institute for Science, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo, 153-8902, Japan; Instituto de Astrofísica de Canarias, Vía Láctea s/n, 38200, La Laguna, Tenerife, Spain	UNSPECIFIED	UNSPECIFIED
Gandolfi, D.	Dipartimento di Fisica, Universita di Torino, via P. Giuria 1, I-10125 Torino, Italy	UNSPECIFIED	UNSPECIFIED
Gazeas, K.	National and Kapodistrian University of Athens, Department of Physics, University Campus, Zografos 157 84, Athens, Greece	UNSPECIFIED	UNSPECIFIED
Gillon, M.	Institut d’Astrophysique de l’Université Liège, Allèe du 6 Aout 17, 4000 Liège, Belgium	UNSPECIFIED	UNSPECIFIED
Gonzales, E.J.	University of California, Santa Cruz, 1156 High Street, Santa Cruz CA 95065, USA	UNSPECIFIED	UNSPECIFIED
Güdel, M.	University of Vienna, Department of Astrophysics, Türkenschanzstrasse 17, 1180, Vienna, Austria	UNSPECIFIED	UNSPECIFIED
Guerra, P.	Observatori Astronòmic Albanyà, Camí de Bassegoda S/N, Albanyà E-17733, Girona, Spain	UNSPECIFIED	UNSPECIFIED
Günther, M. N.	European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201 AZ, Noordwijk, The Netherlands	UNSPECIFIED	UNSPECIFIED
Heitzmann, A.	Observatoire Astronomique de l'Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Helling, Ch.	Space Research Institute, Austrian Academy of Sciences, Graz, Austria	UNSPECIFIED	UNSPECIFIED
Howell, S. B.	NASA Ames Research Center, Moffett Field, CA, 94035, USA	UNSPECIFIED	UNSPECIFIED
Isaak, K. G.	Science and Operations Department - Science Division (SCI-SC), Directorate of Science, European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201-AZ, Noordwijk, The Netherlands	UNSPECIFIED	UNSPECIFIED
Jenkins, J.	NASA Ames Research Center, Moffett Field, CA, 94035, USA	UNSPECIFIED	UNSPECIFIED
Kiss, L. L.	Konkoly Observatory, Research Centre for Astronomy and Earth, Budapest, Hungary	UNSPECIFIED	UNSPECIFIED
Korth, J.	Lund Observatory, Division of Astrophysics, Department of Physics, Lund University, Lund, Sweden	UNSPECIFIED	UNSPECIFIED
Lam, K. W. F.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Laskar, J.	IMCCE, UMR8028 CNRS, Observatoire de Paris, PSL Univ.,Sorbonne Univ., 77 av. Denfert-Rochereau, 75014 Paris, France	UNSPECIFIED	UNSPECIFIED
Lecavelier des Etangs, A.	Institut d Astrophysique de Paris, CNRS, UMR 7095 & Sorbonne Universites, UPMC Paris 6, 98 bis bd Arago, 75014 Paris, France	UNSPECIFIED	UNSPECIFIED
Magrin, D.	INAF,OsservatorioAstronomicodiPadova,Vicolodell’Osservatorio 5, 35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Matson, R.	U.S. Naval Observatory, Washington, DC 20392, USA	UNSPECIFIED	UNSPECIFIED
Matthews, E. C.	Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany	UNSPECIFIED	UNSPECIFIED
Maxted, P. F. L.	Astrophysics Group, Keele University, Staffordshire	UNSPECIFIED	UNSPECIFIED
McDermott, S.	Proto-Logic LLC, 1718 Euclid Street NW, Washington, DC 20009, USA	UNSPECIFIED	UNSPECIFIED
Munari, M.	INAF - Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123 Catania, Italy	UNSPECIFIED	UNSPECIFIED
Mordasini, C.	Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland	UNSPECIFIED	UNSPECIFIED
Narita, N.	Astrobiology Center, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan; JST, PRESTO, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan; Instituto de Astrofisica de Canarias (I	UNSPECIFIED	UNSPECIFIED
Olofsson, G.	Department of Astronomy, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden	UNSPECIFIED	UNSPECIFIED
Ottensamer, R.	University of Vienna, Department of Astrophysics, Austria	UNSPECIFIED	UNSPECIFIED
Pagano, I.	INAF – Osservatorio Astrofisico di Catania, via S. Sofia 78, 95123 Catania, Italy	UNSPECIFIED	UNSPECIFIED
Palle, E.	Instituto de Astrofísica de Canarias (IAC), 38205 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL), 38206 La Laguna, Tenerife, Spain	UNSPECIFIED	UNSPECIFIED
Peter, G.	UNSPECIFIED	https://orcid.org/0000-0001-6101-2513	UNSPECIFIED
Pollacco, D.	Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK	UNSPECIFIED	UNSPECIFIED
Queloz, D.	ETH Zurich, Department of Physics, Wolfgang-Pauli-Strasse 2, 8093, Zurich, Switzerland; Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK	UNSPECIFIED	UNSPECIFIED
Ragazzoni, R.	INAF - Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy	UNSPECIFIED	UNSPECIFIED
Rando, N.	ESA/ESTEC, Noordwijk, Niederlande	UNSPECIFIED	UNSPECIFIED
Ratti, F.	ESA/ESTEC, Noordwijk, Niederlande	UNSPECIFIED	UNSPECIFIED
Rauer, H.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Ribas, I.	Institut de Ciències de l’Espai (CSIC), Campus UAB, c/ de Can Magrans s/n, Barcelona, Spain; Institut d’Estudis Espacials de Catalunya, Barcelona, Spain	UNSPECIFIED	UNSPECIFIED
Salmon, S. J. A. J.	Observatoire Astronomique de l'Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Santos, N. C.	Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal; Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Rua Campo Alegre, 4169-007 Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Scandariato, G.	INAF, Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania, Italy	UNSPECIFIED	UNSPECIFIED
Seager, S.	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED	UNSPECIFIED
Ségransan, D.	Geneva Observatory, University of Geneva, Chemin Pegasi 51, CH-1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Smith, A. M. S.	UNSPECIFIED	https://orcid.org/0000-0002-2386-4341	UNSPECIFIED
Schlieder, J.E.	Exoplanets and Stellar Astrophysics Laboratory, Mail Code 667,NASA Goddard Space Flight Center, 8800 Greenbelt Rd., Green-belt MD, 20771, USA	UNSPECIFIED	UNSPECIFIED
Schwarz, R. P.	Center for Astrophysics, Harvard and Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA	UNSPECIFIED	UNSPECIFIED
Shporer, A.	Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA	UNSPECIFIED	UNSPECIFIED
Sousa, S. G.	Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762, Porto, Portugal	UNSPECIFIED	UNSPECIFIED
Stalport, M.	Astrobiology Research Unit, Université de Liège, Allée du 6 Août 19C, B-4000 Liège, Belgium; Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Allée du 6 Août 19C, B-4000 Liège, Belgium	UNSPECIFIED	UNSPECIFIED
Steinberger, M.	Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria	UNSPECIFIED	UNSPECIFIED
Sulis, S.	Aix Marseille Univ., CNRS, CNES, LAM, 38 Rue Frédéric Joliot-Curie, 13388, Marseille, France	UNSPECIFIED	UNSPECIFIED
Szabó, Gy. M.	ELTE Eötvös Loránd University, Gothard Astrophysical Observatory, 9700, Szombathely, Szent Imre h. u. 112, Hungary ; MTA-ELTE Exoplanet Research Group, 9700, Szombathely, Szent Imre h. u. 112, Hungary	UNSPECIFIED	UNSPECIFIED
Twicken, J. D.	NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, Mountain View, CA 94043, USA	UNSPECIFIED	UNSPECIFIED
Udry, S.	Geneva Observatory, University of Geneva, Chemin Pegasi 51, CH-1290 Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Van Grootel, V.	Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Allée du 6 Août 19C, 4000 Liège, Belgium	UNSPECIFIED	UNSPECIFIED
Venturini, J.	Observatoire Astronomique de l'Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland	UNSPECIFIED	UNSPECIFIED
Villaver, E.	Instituto de Astrofisica de Canarias, Via Lactea s/n, 38200, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna, Astrofísico Francisco Sanchez s/n, 38206, La Laguna, Tenerife, Spain	UNSPECIFIED	UNSPECIFIED
Walton, N. A.	Institute of Astronomy, University of Cambridge, Cambridge, UK	UNSPECIFIED	UNSPECIFIED
Winn, J. N.	Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ, 08544, USA	UNSPECIFIED	UNSPECIFIED

Date:

2025

Journal or Publication Title:

Astronomy and Astrophysics

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

In SCOPUS:

Yes

In ISI Web of Science:

Yes

Volume:

695

DOI:

10.1051/0004-6361/202451180

Page Range:

A273

Publisher:

EDP Sciences

ISSN:

0004-6361

Status:

Published

Keywords:

planets and satellites: detection, planets and satellites: dynamical evolution and stability, planets and satellites: formation, planets and satellites: fundamental parameters, planets and satellites: interiors, Earth and Planetary Astrophysics

HGF - Research field:

Aeronautics, Space and Transport

HGF - Program:

Space

HGF - Program Themes:

Space Exploration

DLR - Research area:

Raumfahrt

DLR - Program:

R EW - Space Exploration

DLR - Research theme (Project):

R - CHEOPS Science, R - Project CHEOPS

Location:

Berlin-Adlershof

Institutes and Institutions:

Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Planetary Research > Leitungsbereich PF
Institute of Optical Sensor Systems > Space Instruments

Deposited By:

Smith, Dr Alexis M S

Deposited On:

22 May 2025 14:28

Last Modified:

22 May 2025 14:28

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