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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 14931naa a2201777 4500 | |
| 001 | oai:research.chalmers.se:bebc05b3-6afc-4b5a-be47-ac1cee566044 | |
| 003 | SwePub | |
| 008 | 230708s2023 | |||||||||||000 ||eng| | |
| 009 | oai:lup.lub.lu.se:fa763a69-b86c-4d89-ade3-9fd6a4e9215d | |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2022454782 DOI |
| 024 | 7 | a https://research.chalmers.se/publication/5365332 URI |
| 024 | 7 | a https://lup.lub.lu.se/record/fa763a69-b86c-4d89-ade3-9fd6a4e9215d2 URI |
| 040 | a (SwePub)cthd (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Ulmer-Moll, S.u Université de Genève,University of Geneva,Universität Bern,University of Bern4 aut |
| 245 | 1 0 | a TOI-5678b: A 48-day transiting Neptune-mass planet characterized with CHEOPS and HARPS |
| 264 | 1 | c 2023 |
| 338 | a electronic2 rdacarrier | |
| 520 | a Context. A large sample of long-period giant planets has been discovered thanks to long-term radial velocity surveys, but only a few dozen of these planets have a precise radius measurement. Transiting gas giants are crucial targets for the study of atmospheric composition across a wide range of equilibrium temperatures and, more importantly, for shedding light on the formation and evolution of planetary systems. Indeed, compared to hot Jupiters, the atmospheric properties and orbital parameters of cooler gas giants are unaltered by intense stellar irradiation and tidal effects. Aims. We aim to identify long-period planets in the Transiting Exoplanet Survey Satellite (TESS) data as single or duo-transit events. Our goal is to solve the orbital periods of TESS duo-transit candidates with the use of additional space-based photometric observations and to collect follow-up spectroscopic observations in order to confirm the planetary nature and measure the mass of the candidates. Methods. We use the CHaracterising ExOPlanet Satellite (CHEOPS) to observe the highest-probability period aliases in order to discard or confirm a transit event at a given period. Once a period is confirmed, we jointly model the TESS and CHEOPS light curves along with the radial velocity datasets to measure the orbital parameters of the system and obtain precise mass and radius measurements. Results. We report the discovery of a long-period transiting Neptune-mass planet orbiting the G7-type star TOI-5678. Our spectroscopic analysis shows that TOI-5678 is a star with a solar metallicity. The TESS light curve of TOI-5678 presents two transit events separated by almost two years. In addition, CHEOPS observed the target as part of its Guaranteed Time Observation program. After four non-detections corresponding to possible periods, CHEOPS detected a transit event matching a unique period alias. Follow-up radial velocity observations were carried out with the ground-based high-resolution spectrographs CORALIE and HARPS. Joint modeling reveals that TOI-5678 hosts a 47.73 day period planet, and we measure an orbital eccentricity consistent with zero at 2σ. The planet TOI-5678 b has a mass of 20 ± 4 Earth masses (M) and a radius of 4.91 ± 0.08 R Using interior structure modeling, we find that TOI-5678 b is composed of a low-mass core surrounded by a large H/He layer with a mass of 3.2±1.7-1.3 M. Conclusions. TOI-5678 b is part of a growing sample of well-characterized transiting gas giants receiving moderate amounts of stellar insolation (11 S). Precise density measurement gives us insight into their interior composition, and the objects orbiting bright stars are suitable targets to study the atmospheric composition of cooler gas giants. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng |
| 653 | a Planets and satellites: gaseous planets | |
| 653 | a Planets and satellites: detection | |
| 653 | a Planets and satellites: individual: TOI-5678 | |
| 653 | a Methods: data analysis | |
| 653 | a Methods: data analysis | |
| 653 | a Planets and satellites: detection | |
| 653 | a Planets and satellites: gaseous planets | |
| 653 | a Planets and satellites: individual: TOI-5678 | |
| 653 | a Atmospheric composition | |
| 653 | a Extrasolar planets | |
| 653 | a Giant stars | |
| 653 | a Orbits | |
| 653 | a Spectroscopic analysis | |
| 653 | a Exo-planets | |
| 653 | a Gas giant | |
| 653 | a Methods. Data analysis | |
| 653 | a Neptune | |
| 653 | a Planet and satellite: gaseous planet | |
| 653 | a Planet and satellite: individual: TOI-5678 | |
| 653 | a Planets and satellites | |
| 653 | a Planets and satellites: detections | |
| 653 | a Planets and satellites: individual | |
| 653 | a Radial velocity | |
| 653 | a Satellites | |
| 700 | 1 | a Osborn, H. P.u Massachusetts Institute of Technology (MIT),Universität Bern,University of Bern4 aut |
| 700 | 1 | a Tuson, A.u University Of Cambridge4 aut |
| 700 | 1 | a Egger, J. A.u Universität Bern,University of Bern,European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Lendl, M.u Université de Genève,University of Geneva,Universita degli Studi di Torino,University of Turin4 aut |
| 700 | 1 | a Maxted, P.u Keele University4 aut |
| 700 | 1 | a Bekkelien, A.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Simon, A.E.u Universität Bern,University of Bern,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Olofsson, G.u Stockholms universitet,Stockholm University4 aut |
| 700 | 1 | a Adibekyan, V.u Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Alibert, Y.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Bonfanti, A.4 aut |
| 700 | 1 | a Bouchy, F.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Brandeker, A.u Stockholms universitet,Stockholm University4 aut |
| 700 | 1 | a Fridlund, Malcolm,d 1952u Universiteit Leiden (UL),Leiden University (UL),Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)malfri |
| 700 | 1 | a Gandolfi, D.u Universita degli Studi di Torino,University of Turin4 aut |
| 700 | 1 | a Mordasini, C.u Universität Bern,University of Bern,Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Persson, Carina,d 1964u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)carina64 |
| 700 | 1 | a Salmon, S.u Université de Genève,University of Geneva,Universidade do Porto,University of Porto,Institut de Physique du Globe de Paris,Laboratoire d'Astrophysique de Marseille,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Serrano, L. M.u Universita degli Studi di Torino,University of Turin4 aut |
| 700 | 1 | a Sousa, S. G.u Universidade do Porto,University of Porto,Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Wilson, T.G.u University of St Andrews4 aut |
| 700 | 1 | a Rieder, M.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Hasiba, J.4 aut |
| 700 | 1 | a Asquier, J.u European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Sicilia, D.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Walter, I.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Alonso, R.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Anglada, G.u Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC,Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC)4 aut |
| 700 | 1 | a Davies, M.B.u Lund University,Lunds universitet,Matematik (naturvetenskapliga fakulteten),Matematikcentrum,Institutioner vid LTH,Lunds Tekniska Högskola,LU profilområde: Naturlig och artificiell kognition,Lunds universitets profilområden,Mathematics (Faculty of Sciences),Centre for Mathematical Sciences,Departments at LTH,Faculty of Engineering, LTH,LU Profile Area: Natural and Artificial Cognition,Lund University Profile areas,European Space Astronomy Centre (ESAC),Université de Genève,University of Geneva,Istituto nazionale di astrofisica (INAF)4 aut0 (Swepub:lu)astr-mda |
| 700 | 1 | a Barros, S.C.C.u Universidade do Porto,University of Porto,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Baumjohann, W.4 aut |
| 700 | 1 | a Beck, M.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Beck, T.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Benz, W.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Billot, N.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Bonfils, X.4 aut |
| 700 | 1 | a Borsato, L.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Broeg, C.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Bárczy, T.4 aut |
| 700 | 1 | a Cabrera, J.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Charnoz, S.u Institut de Physique du Globe de Paris,Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Cointepas, M.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Collier Cameron, A.u University of St Andrews4 aut |
| 700 | 1 | a Csizmadia, Szilardu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Cubillos, P. E.u Istituto nazionale di astrofisica (INAF),Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Davies, Melvyn B.u Lunds universitet,Lund University4 aut |
| 700 | 1 | a Deleuil, M.u Laboratoire d'Astrophysique de Marseille4 aut |
| 700 | 1 | a Deline, A.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Delrez, L.u Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Demangeon, O.u Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Demory, B.O.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Dumusque, X.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Ehrenreich, D.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Eisner, N. L.u Flatiron Institute4 aut |
| 700 | 1 | a Erikson, Andersu Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Fortier, A.u Universität Bern,University of Bern4 aut |
| 700 | 1 | a Fossati, L.4 aut |
| 700 | 1 | a Gillon, Michaëlu Universite de Liège,University of Liège,Eötvös Loránd University (ELTE)4 aut |
| 700 | 1 | a Grieves, N.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Gudel, M.u Universität Wien,University of Vienna4 aut |
| 700 | 1 | a Hagelberg, J.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Helled, R.u Universität Zürich,University of Zürich,Technische Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Hoyer, S.u Laboratoire d'Astrophysique de Marseille4 aut |
| 700 | 1 | a Isaak, K.u European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Kiss, L.u Magyar Tudomanyos Akademia,Hungarian Academy of Sciences,Eötvös Loránd University (ELTE)4 aut |
| 700 | 1 | a Laskar, J.u Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a des Etangs, A. L.u Institut d 'Astrophysique de Paris4 aut |
| 700 | 1 | a Lovis, C.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Magrin, D.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Nascimbeni, Valeriou Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Otegi, J. F.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Ottensammer, R.u Universität Wien,University of Vienna4 aut |
| 700 | 1 | a Pagano, I.u Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Palle, E.u Instituto de Astrofísica de Canarias4 aut |
| 700 | 1 | a Peter, G.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Istituto nazionale di astrofisica (INAF),Università Degli Studi di Padova,University of Padua4 aut |
| 700 | 1 | a Piotto, Giampaolo P.u Istituto nazionale di astrofisica (INAF),Università Degli Studi di Padova,University of Padua4 aut |
| 700 | 1 | a Pollacco, Don L.u The University of Warwick4 aut |
| 700 | 1 | a Psaridi, A.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Queloz, D.u Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH),University Of Cambridge4 aut |
| 700 | 1 | a Ragazzoni, Robertou Università Degli Studi di Padova,University of Padua,Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Rando, N.u European Space Research and Technology Centre (ESA ESTEC)4 aut |
| 700 | 1 | a Rauer, H.u Technische Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Ribas, I.u Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC,Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC)4 aut |
| 700 | 1 | a Santos, N. C.u Universidade do Porto,University of Porto4 aut |
| 700 | 1 | a Scandariato, Gaetanou Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Smith, A. M.S.u Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)4 aut |
| 700 | 1 | a Steller, Manfred B.4 aut |
| 700 | 1 | a Szabó, G.M.u Eötvös Loránd University (ELTE)4 aut |
| 700 | 1 | a Segransan, D.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Thomas, Nicolasu Universität Bern,University of Bern4 aut |
| 700 | 1 | a Udry, S.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Van Grootel, V.u Universite de Liège,University of Liège4 aut |
| 700 | 1 | a Venturini, J.u Université de Genève,University of Geneva4 aut |
| 700 | 1 | a Walton, N. A.u University Of Cambridge,University of Cambridge4 aut |
| 710 | 2 | a Université de Genèveb Universität Bern4 org |
| 773 | 0 | t Astronomy and Astrophysicsg 674q 674x 0004-6361x 1432-0746 |
| 856 | 4 | u https://research.chalmers.se/publication/536533/file/536533_Fulltext.pdfx primaryx freey FULLTEXT |
| 856 | 4 | u http://dx.doi.org/10.1051/0004-6361/202245478x freey FULLTEXT |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/202245478 |
| 856 | 4 8 | u https://research.chalmers.se/publication/536533 |
| 856 | 4 8 | u https://lup.lub.lu.se/record/fa763a69-b86c-4d89-ade3-9fd6a4e9215d |
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