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Precise characterisation of HD 15337 with CHEOPS: A laboratory for planet formation and evolution
Rosário, N. M. and Demangeon, O. D. S. and Barros, S. C. C. and Gandolfi, D. and Egger, J. A. and Serrano, L. M. and Osborn, H. P. and Beck, M. and Benz, W. and Florén, H. -G. and Gutermann, P. and Wilson, T. G. and Alibert, Y. and Fossati, L. and Hooton, M. J. and Delrez, L. and Santos, N. C. and Sousa, S. G. and Bonfanti, A. and Salmon, S. and Adibekyan, V. and Nigioni, A. and Venturini, J. and Alonso, R. and Anglada, G. and Asquier, J. and Bàrczy, T. and Barrado Navascues, D. and Barragán, O. and Baumjohann, W. and Beck, T. and Billot, N. and Biondi, F. and Bonfils, X. and Borsato, L. and Brandeker, A. and Broeg, C. and Cessa, V. 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 Demory, B. -O. and Ehrenreich, D. and Erikson, A. and Esposito, M. and Fortier, A. and Fridlund, M. and Gillon, M. and Güdel, M. and Günther, M. N. and Helling, Ch. and Hoyer, S. and Isaak, K. G. and Kiss, L. L. and Lam, K. W. F. and Laskar, J. and Lecavelier des Etangs, A. and Lendl, M. and Luntzer, A. and Magrin, D. and Maxted, P. F. L. and Mordasini, C. and Nascimbeni, V. and Olofsson, G. and Osborne, H. L. M. and Ottensamer, R. and Pagano, I. and Palle, E. and Peter, G. and Piotto, G. and Pollacco, D. and Queloz, D. and Ragazzoni, R. and Rando, N. and Rauer, H. and Ribas, I. and Scandariato, G. and Ségransan, D. and Simon, A. E. and Smith, A. M. S. and Stalport, M. and Szabó, Gy. M. and Thomas, N. and Udry, S. and Van Eylen, V. and Van Grootel, V. and Villaver, E. and Walter, I. and Walton, N. A.
(2024)
Precise characterisation of HD 15337 with CHEOPS: A laboratory for planet formation and evolution.
Astronomy and Astrophysics, 686, A282.
EDP Sciences.
doi: 10.1051/0004-6361/202347759.
ISSN 0004-6361.
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Official URL: https://www.aanda.org/articles/aa/full_html/2024/06/aa47759-23/aa47759-23.html AbstractContext. The HD 15337 (TIC 120896927, TOI-402) system was observed by the Transiting Exoplanet Survey Satellite (TESS), revealing the presence of two short-period planets situated on opposite sides of the radius gap. This offers an excellent opportunity to study theories of formation and evolution, as well as to investigate internal composition and atmospheric evaporation.
Aims: We aim to constrain the internal structure and composition of two short-period planets situated on opposite sides of the radius valley: HD 15337 b and c. We use new transit photometry and radial velocity data.
Methods: We acquired 6 new transit visits with the CHaracterising ExOPlanet Satellite (CHEOPS) and 32 new radial velocity measurements from the High Accuracy Radial Velocity Planet Searcher (HARPS) to improve the accuracy of the mass and radius estimates for both planets. We re-analysed the light curves from TESS sectors 3 and 4 and analysed new data from sector 30, correcting for long-term stellar activity. Subsequently, we performed a joint fit of the TESS and CHEOPS light curves, along with all available RV data from HARPS and the Planet Finder Spectrograph (PFS). Our model fit the planetary signals, stellar activity signal, and instrumental decorrelation model for the CHEOPS data simultaneously. The stellar activity was modelled using a Gaussian-process regression on both the RV and activity indicators. Finally, we employed a Bayesian retrieval code to determine the internal composition and structure of the planets.
Results: We derived updated and highly precise parameters for the HD 15337 system. Our improved precision on the planetary parameters makes HD 15337 b one of the most precisely characterised rocky exoplanets, with radius and mass measurements achieving a precision better than 2% and 7%, respectively. We were able to improve the precision of the radius measurement of HD 15337 c to 3%. Our results imply that the composition of HD 15337 b is predominantly rocky, while HD 15337 c exhibits a gas envelope with a mass of at least 0.01 M⊕.
Conclusions: Our results lay the groundwork for future studies, which can further unravel the atmospheric evolution of these exoplanets and offer new insights into their composition and formation history as well as the causes behind the radius gap. | Item URL in elib: | https://elib.dlr.de/208356/ |
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| Document Type: | Article |
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| Title: | Precise characterisation of HD 15337 with CHEOPS: A laboratory for planet formation and evolution |
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| Authors: | | Authors | Institution or Email of Authors | Author's ORCID iD | ORCID Put Code |
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| Rosário, N. M. | Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal | 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 | | Barros, S. C. C. | Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal | 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 | | Egger, J. A. | Physikalisches Institut, University of Bern, Gesellschaftsstrasse 6, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | | Serrano, L. M. | Dipartimento di Fisica, Università degli Studi di Torino, via Pietro Giuria 1, I-10125, Torino, Italy | UNSPECIFIED | UNSPECIFIED | | Osborn, H. P. | Physikalisches Institut, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA | UNSPECIFIED | UNSPECIFIED | | Beck, M. | Université de Genève, Switzerland | UNSPECIFIED | UNSPECIFIED | | Benz, W. | Physikalisches Institut, Universität Bern, CH | UNSPECIFIED | UNSPECIFIED | | Florén, H. -G. | Department of Astronomy, Stockholm University, AlbaNova University Center, SE-10691 Stockholm, Sweden | UNSPECIFIED | UNSPECIFIED | | Gutermann, P. | Aix-Marseille Université, CNRS, CNES, Laboratoire d'Astrophysique de Marseille, 38 rue Frédéric Joliot-Curie, 13388, Marseille, France; Division Technique, Institut National des Sciences de l'Univers (INSU), CS 20330, 83507, La Seyne-sur-Mer, France | UNSPECIFIED | UNSPECIFIED | | Wilson, T. G. | Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK | UNSPECIFIED | UNSPECIFIED | | Alibert, Y. | Physikalisches Institut, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | | Fossati, L. | Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042, Graz, Austria | UNSPECIFIED | UNSPECIFIED | | Hooton, M. J. | Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK; Physikalisches Institut, University of Bern, Gesellsschaftstrasse 6, 3012, Bern, Switzerland | https://orcid.org/0000-0003-0030-332X | UNSPECIFIED | | Delrez, L. | Institut d Astrophysique et de Geophysique, Universite de Liege | 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 | | Sousa, S. G. | Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal | UNSPECIFIED | UNSPECIFIED | | Bonfanti, A. | Space Research Institute, Austrian Academy of Sciences, Austria | UNSPECIFIED | UNSPECIFIED | | Salmon, S. | STAR, Université de Liège, Belgium | UNSPECIFIED | UNSPECIFIED | | Adibekyan, V. | Instituto de Astrofisica e Ciencias do Espaco, Universidade do Porto, CAUP, Rua das Estrelas, 4150-762 Porto, Portugal | UNSPECIFIED | UNSPECIFIED | | Nigioni, A. | Université de Genève, Switzerland | UNSPECIFIED | UNSPECIFIED | | Venturini, J. | Observatoire Astronomique de l'Université de Genève, Chemin Pegasi 51, 1290, Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | | Alonso, 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 | | 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 | | Asquier, J. | ESTEC, European Space Agency, 2201AZ, Noordwijk, NL | UNSPECIFIED | UNSPECIFIED | | Bàrczy, T. | Admatis, Miskolc, Hungary | 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 | | Barragán, O. | Sub-department of Astrophysics, Department of Physics, University of Oxford, Oxford, OX1 3RH, UK | UNSPECIFIED | UNSPECIFIED | | Baumjohann, W. | Space Research Institute, Austrian Academy of Sciences, Graz, Austria | UNSPECIFIED | UNSPECIFIED | | Beck, T. | Center for Space and Habitability, University of Bern, Gesellschaftsstraße 6, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | | Billot, N. | Observatoire de Genève, University of Geneva, Switzerland | UNSPECIFIED | UNSPECIFIED | | Biondi, F. | INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | UNSPECIFIED | | Bonfils, X. | Institut de Planétologie et d'Astrophysique, University of Grenoble, France | UNSPECIFIED | UNSPECIFIED | | Borsato, L. | Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova, via Marzolo 8, 35131 Padova, Italy | UNSPECIFIED | UNSPECIFIED | | Brandeker, A. | Department of Astronomy – Stockholm University, SE-106 91 Stockholm, Sweden | UNSPECIFIED | UNSPECIFIED | | Broeg, C. | Physikalisches Institut, University of Bern, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | | Cessa, V. | Center for Space and Habitability, University of Bern, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | | Charnoz, S. | Université de Paris, Institut de physique du globe de Paris, CNRS, F-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. | 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. | Laboratoire d´Astrophysique de Marseille, France | UNSPECIFIED | UNSPECIFIED | | Deline, A. | Observatoire de Genève, University of Geneva, Switzerland | UNSPECIFIED | UNSPECIFIED | | Demory, B. -O. | Center for Space and Habitability, Gesellsschaftstrasse 6, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | | Ehrenreich, D. | Observatoire de Genève, University of Geneva, Switzerland | UNSPECIFIED | UNSPECIFIED | | Erikson, A. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | | Esposito, M. | Thuringer Landessternwarte Tautenburg, Sternwarte 5, 07778, Tautenburg, Germany | UNSPECIFIED | UNSPECIFIED | | Fortier, A. | Physikalisches Institut, University of Bern, Bern, Switzerland | https://orcid.org/0000-0001-8450-3374 | 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 | | Gillon, M. | Institut d’Astrophysique de l’Université Liège, Allèe du 6 Aout 17, 4000 Liège, Belgium | UNSPECIFIED | UNSPECIFIED | | Güdel, M. | Department of Astrophysics, University of Vienna, Türkenschanzstraße 17, 1180, Vienna, Austria | 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 | | Helling, Ch. | Space Research Institute, Austrian Academy of Sciences, Graz, Austria | UNSPECIFIED | UNSPECIFIED | | Hoyer, S. | Aix-Marseille Universite, CNRS, CNES, LAM, Marseille, France | 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 | | Lam, K. W. F. | UNSPECIFIED | https://orcid.org/0000-0002-9910-6088 | 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. | Observatoire de Genève, Université de Genève, Chemin Pegasi, 51, 1290, Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | | Luntzer, A. | Department of Astrophysics, University of Vienna | 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 | | Nascimbeni, V. | INAF, Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania, Italy | UNSPECIFIED | UNSPECIFIED | | Olofsson, G. | Department of Astronomy, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden | UNSPECIFIED | UNSPECIFIED | | Osborne, H. L. M. | Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK | 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, 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 | | Piotto, G. | INAF – Osservatorio Astronomico di Padova, vicolo dell Osservatorio 5, 35122 Padova, Italy | UNSPECIFIED | 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 | | 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 | | Scandariato, G. | INAF, Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania, Italy | UNSPECIFIED | UNSPECIFIED | | Ségransan, D. | Geneva Observatory, University of Geneva, Chemin Pegasi 51, CH-1290 Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | | Simon, A. E. | Center for Space and Habitability, University of Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | | Smith, A. M. S. | UNSPECIFIED | https://orcid.org/0000-0002-2386-4341 | UNSPECIFIED | | Stalport, M. | Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland | 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 | | Thomas, N. | Physikalisches Institut, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland | UNSPECIFIED | UNSPECIFIED | | Udry, S. | Observatoire de Genève, Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | | Van Eylen, V. | Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey, RH5 6NT, UK | 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 | | Villaver, E. | Instituto de Astrofisica de Canarias, Via Lactea s/n, 38200, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna, Astrofisico Francisco Sanchez s/n, 38206, La Laguna, Tenerife, Spain | UNSPECIFIED | UNSPECIFIED | | Walter, I. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | | Walton, N. A. | Institute of Astronomy, University of Cambridge, Cambridge, UK | UNSPECIFIED | UNSPECIFIED |
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| Date: | 2024 |
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| Journal or Publication Title: | Astronomy and 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: | 686 |
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| DOI: | 10.1051/0004-6361/202347759 |
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| Page Range: | A282 |
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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, techniques: radial velocities, planets and satellites: composition, stars: individual: HD 15337, stars: individual: TOI-402, stars: individual: TIC 12089692, Astrophysics - Earth and Planetary 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 |
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| Deposited By: |
Smith, Dr Alexis M S
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| Deposited On: | 11 Nov 2024 15:20 |
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| Last Modified: | 11 Nov 2024 15:20 |
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