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A new dynamical modeling of the WASP-47 system with CHEOPS observations
Nascimbeni, V. and Borsato, L. and Zingales, T. and Piotto, G. and Pagano, I. and Beck, M. and Broeg, C. and Ehrenreich, D. and Hoyer, S. and Majidi, F. Z. and Granata, V. and Sousa, S. G. and Wilson, T. G. and Van Grootel, V. and Bonfanti, A. and Salmon, S. and Mustill, A. J. and Delrez, L. and Alibert, Y. and Alonso, R. and Anglada, G. and Bàrczy, T. and Barrado, D. and Barros, S. C. C. and Baumjohann, W. and Beck, T. and Benz, W. and Bergomi, M. and Billot, N. and Bonfils, X. and Brandeker, A. and Cabrera, J. and Charnoz, S. and Collier Cameron, A. 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 Erikson, A. and Fortier, A. and Fossati, L. and Fridlund, M. and Gandolfi, D. and Gillon, M. and Güdel, M. and Isaak, K. G. and Kiss, L. L. and Laskar, J. and Lecavelier des Etangs, A. and Lendl, M. and Lovis, C. and Luque, R. and Magrin, D. and Maxted, P. F. L. and Mordasini, C. and Olofsson, G. and Ottensamer, R. and Palle, E. and Peter, G. and Piazza, D. and Pollacco, D. and Queloz, D. and Ragazzoni, R. and Rando, N. and Ratti, F. and Rauer, H. and Ribas, I. and Santos, N. C. and Scandariato, G. and Segransan, D. and Simon, A. E. and Smith, A. M. S. and Steinberger, M. and Steller, M. and Szabó, Gy. M. and Thomas, N. and Udry, S. and Venturini, J. and Walton, N. A. and Wolter, D.
(2023)
A new dynamical modeling of the WASP-47 system with CHEOPS observations.
Astronomy & Astrophysics, 673, A42.
EDP Sciences.
doi: 10.1051/0004-6361/202245486.
ISSN 0004-6361.
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PDF
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1MB |
Official URL: https://www.aanda.org/articles/aa/full_html/2023/05/aa45486-22/aa45486-22.html AbstractAmong the hundreds of known hot Jupiters (HJs), only five have been found to have companions on short-period orbits. Within this rare class of multiple planetary systems, the architecture of WASP-47 is unique, hosting an HJ (planet-b) with both an inner and an outer sub-Neptunian mass companion (-e and -d, respectively) as well as an additional non-transiting, long-period giant (-c). The small period ratio between planets -b and -d boosts the transit time variation (TTV) signal, making it possible to reliably measure the masses of these planets in synergy with the radial velocity (RV) technique. In this paper, we present new space- and ground-based photometric data of WASP-47b and WASP-47-d, including 11 unpublished light curves from the ESA mission CHaracterising ExOPlanet Satellite (CHEOPS). We analyzed the light curves in a homogeneous way together with all the publicly available data to carry out a global N-body dynamical modeling of the TTV and RV signals. We retrieved, among other parameters, a mass and density for planet -d of Md = 15.5 ± 0.8 M⊕ and ρd = 1.69 ± 0.22 g cm−3, which is in good agreement with the literature and consistent with a Neptune-like composition. For the inner planet (-e), we found a mass and density of Me = 9.0 ± 0.5 M⊕ and ρe = 8.1 ± 0.5 g cm−3, suggesting an Earth-like composition close to other ultra-hot planets at similar irradiation levels. Though this result is in agreement with previous RV plus TTV studies, it is not in agreement with the most recent RV analysis (at 2.8σ), which yielded a lower density compatible with a pure silicate composition. This discrepancy highlights the still unresolved issue of suspected systematic offsets between RV and TTV measurements. In this paper, we also significantly improve the orbital ephemerides of all transiting planets, which will be crucial for any future follow-up. Item URL in elib: | https://elib.dlr.de/195172/ |
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Document Type: | Article |
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Title: | A new dynamical modeling of the WASP-47 system with CHEOPS observations |
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Authors: | Authors | Institution or Email of Authors | Author's ORCID iD | ORCID Put Code |
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Nascimbeni, V. | INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | Borsato, L. | Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova, via Marzolo 8, 35131 Padova, Italy | UNSPECIFIED | UNSPECIFIED | 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 | Piotto, G. | INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | Pagano, I. | INAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, 95123 Catania, Italy | UNSPECIFIED | UNSPECIFIED | Beck, M. | Université de Genève, Switzerland | UNSPECIFIED | UNSPECIFIED | Broeg, C. | Physikalisches Institut, University of Bern, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Ehrenreich, D. | Observatoire de Genève, University of Geneva, Switzerland | https://orcid.org/0000-0001-9704-5405 | UNSPECIFIED | Hoyer, S. | Laboratoire d’Astrophysique de Marseille, Univ. de Provence, France | UNSPECIFIED | UNSPECIFIED | Majidi, F. Z. | 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 | Granata, V. | INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | Sousa, S. G. | Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal | UNSPECIFIED | UNSPECIFIED | Wilson, T. G. | School of Physics and Astronomy, St. Andrews, UK | https://orcid.org/0000-0001-8749-1962 | UNSPECIFIED | Van Grootel, V. | STAR, Université de Liège, Belgium | UNSPECIFIED | UNSPECIFIED | Bonfanti, A. | Space Research Institute, Austrian Academy of Sciences, Austria | UNSPECIFIED | UNSPECIFIED | Salmon, S. | STAR, Université de Liège, Belgium | UNSPECIFIED | UNSPECIFIED | Mustill, A. J. | Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, 22100, Lund, Sweden | UNSPECIFIED | UNSPECIFIED | Delrez, L. | Institut d’Astrophysique et de Geophysique, Universite de Liege, Belgium | UNSPECIFIED | UNSPECIFIED | Alibert, Y. | Physikalisches Institut, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Alonso, R. | Instituto de Astrofisica de Canarias (IAC), Via Lactea s/n 38200, La Laguna, Spain | UNSPECIFIED | UNSPECIFIED | Anglada, G. | Institut de Ciencies de l'Espai (ICE, CSIC), Campus UAB, Can Magrans s/n, 08193, Bellaterra, Spain; Institut d'Estudis Espacials de Catalunya (IEEC), Carrer del Gran Capità, 2, 08034, Barcelona, Spain | UNSPECIFIED | UNSPECIFIED | Bàrczy, T. | Admatis, Miskolc, Hungary | UNSPECIFIED | UNSPECIFIED | Barrado, D. | Departamento de Astrofisica, Centro de Astrobiologia (INTA-CSIC), Campus ESAC (ESA)Camino Bajo del Castillo s/n 28692 Villanueva de la Canada, 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, Graz, Austria | UNSPECIFIED | UNSPECIFIED | Beck, T. | Center for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Benz, W. | Physikalisches Institut, Universität Bern, CH | UNSPECIFIED | UNSPECIFIED | Bergomi, M. | INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | Billot, N. | Observatoire de Genève, University of Geneva, Switzerland | UNSPECIFIED | UNSPECIFIED | Bonfils, X. | Institut de Planétologie et d'Astrophysique, University of Grenoble, France | UNSPECIFIED | UNSPECIFIED | Brandeker, A. | Department of Astronomy – Stockholm University, SE-106 91 Stockholm, Sweden | UNSPECIFIED | UNSPECIFIED | Cabrera, J. | UNSPECIFIED | https://orcid.org/0000-0001-6653-5487 | UNSPECIFIED | Charnoz, S. | Université de Paris, Institut de physique du globe de Paris, CNRS, 75005, Paris, France | UNSPECIFIED | UNSPECIFIED | Collier Cameron, A. | SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife KY16 9SS, UK | https://orcid.org/0000-0002-8863-7828 | UNSPECIFIED | Csizmadia, Sz. | UNSPECIFIED | https://orcid.org/0000-0001-6803-9698 | UNSPECIFIED | Cubillos, P. E. | Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8041 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, LAM (Laboratoire d Astrophysique de Marseille) UMR 7326, F-13388 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, Gesellsschaftstrasse 6, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Erikson, A. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Fortier, A. | Physikalisches Institut, University of Bern, Bern, Switzerland | https://orcid.org/0000-0001-8450-3374 | UNSPECIFIED | Fossati, L. | Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, Austria | UNSPECIFIED | UNSPECIFIED | Fridlund, M. | Department of Space, Earth and Environment, Onsala Space Observatory, Chalmers University of Technology, SE-439 92, Onsala, Sweden; Leiden Observatory, University of Leiden, PO Box 9513, 2300 RA, Leiden, The Netherlands | UNSPECIFIED | UNSPECIFIED | Gandolfi, D. | Dipartimento di Fisica, Universita degli Studi di Torino, via Pietro Giuria 1, 10125, Torino, Italy | https://orcid.org/0000-0001-8627-9628 | UNSPECIFIED | Gillon, M. | Institut d’Astrophysique, Geophysique et Oceanographie, Universite de Liege, B-4000 Liege, Belgium | UNSPECIFIED | UNSPECIFIED | Güdel, M. | Department of Astrophysics, University of Vienna, Tuerkenschanzstrasse 17, A-1180 Vienna, Austria | UNSPECIFIED | UNSPECIFIED | Isaak, K. G. | ESA/ESTEC, Noordwijk, Niederlande | UNSPECIFIED | UNSPECIFIED | Kiss, L. L. | Konkoly Observatory, Research Centre for Astronomy and Earth, Budapest, Hungary | 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 | Lendl, M. | Austrian Academy of Sciences, Space Research Institute, Graz, Austria | UNSPECIFIED | UNSPECIFIED | Lovis, C. | Observatoire de l Universite de Geneve, 51 chemin des Maillettes, 1290 Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | Luque, R. | Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, Spain | UNSPECIFIED | UNSPECIFIED | Magrin, D. | INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | Maxted, P. F. L. | Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK | UNSPECIFIED | UNSPECIFIED | Mordasini, C. | Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland | 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 | Palle, E. | Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain | Departamento de Astrofisica, Universidad de La Laguna, 38206 La Laguna, Spain | UNSPECIFIED | UNSPECIFIED | Peter, G. | UNSPECIFIED | https://orcid.org/0000-0001-6101-2513 | UNSPECIFIED | Piazza, D. | Physics Institute, Space Research & Planetary Sciences, University of Bern, Sidlerstr. 5, CH-3012 Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Pollacco, D. | Department of Physics, University of Warwick, Coventry CV4 7AL, UK | UNSPECIFIED | UNSPECIFIED | Queloz, D. | Cavendish Laboratory, J J 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, Niederlande | UNSPECIFIED | UNSPECIFIED | Ratti, F. | ESA/ESTEC, Niederlande | UNSPECIFIED | UNSPECIFIED | Rauer, H. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | Ribas, I. | Institut de Ciencies de l Espai (CSIC-IEEC), Carrer de Can Magrans, Campus UAB, E-08193 Bellaterra, Spain | 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 | Segransan, D. | Observatoire de Geneve, Universite de Geneve, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | Simon, A. E. | Physikalisches Institut, University of Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Smith, A. M. S. | UNSPECIFIED | https://orcid.org/0000-0002-2386-4341 | UNSPECIFIED | Steinberger, M. | Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria | UNSPECIFIED | UNSPECIFIED | Steller, M. | Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, Austria | UNSPECIFIED | UNSPECIFIED | Szabó, Gy. M. | Department of Experimental Physics & Astronomical Observatory, University of Szeged, Szeged, Hungary | UNSPECIFIED | UNSPECIFIED | Thomas, N. | Physikalisches Institut, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | Udry, S. | Observatoire de Geneve, Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | Venturini, J. | Observatoire Astronomique de l'Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | Walton, N. A. | Institute of Astronomy, University of Cambridge, Cambridge, UK | UNSPECIFIED | UNSPECIFIED | Wolter, D. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED |
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Date: | 3 May 2023 |
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Journal or Publication Title: | Astronomy & Astrophysics |
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Refereed publication: | Yes |
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Open Access: | Yes |
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Gold Open Access: | No |
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In SCOPUS: | Yes |
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In ISI Web of Science: | Yes |
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Volume: | 673 |
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DOI: | 10.1051/0004-6361/202245486 |
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Page Range: | A42 |
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Publisher: | EDP Sciences |
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ISSN: | 0004-6361 |
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Status: | Published |
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Keywords: | techniques: photometric, planets and satellites: detection, planets and satellites: general, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics |
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HGF - Research field: | Aeronautics, Space and Transport |
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HGF - Program: | Space |
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HGF - Program Themes: | Space Exploration |
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DLR - Research area: | Raumfahrt |
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DLR - Program: | R EW - Space Exploration |
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DLR - Research theme (Project): | R - CHEOPS Science, R - Project CHEOPS |
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Location: |
Berlin-Adlershof
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Institutes and Institutions: | Institute of Planetary Research > Extrasolar Planets and Atmospheres Institute of Planetary Research > Leitungsbereich PF Institute of Optical Sensor Systems > Space Instruments Institute of Planetary Research > Planetary Sensor Systems |
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Deposited By: |
Smith, Dr Alexis M S
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Deposited On: | 26 May 2023 12:41 |
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Last Modified: | 15 Dec 2023 09:06 |
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