Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination
- Autores
- Almenara, J. M.; Hébrard, G.; Diaz, Rodrigo Fernando; Laskar, J.; Correia, A. C. M.; Anderson, D. R.; Boisse, I.; Bonfils, X.; Brown, D. J. A.; Casanova, V.; Collier Cameron, A.; Fernández, M.; Jenkins, J. M.; Kiefer, F.; Lecavelier Des Etangs, A.; Lissauer, J. J.; MacIejewski, G.; McCormac, J.; Osborn, H.; Pollacco, D.; Ricker, G.; Sánchez, J.; Seager, S.; Udry, S.; Verilhac, D.; Winn, J.
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- WASP-148 is a recently announced extra-solar system harbouring at least two giant planets. The inner planet transits its host star. The planets travel on eccentric orbits and are near the 4:1 mean-motion resonance, which implies significant mutual gravitational interactions. In particular, this causes transit-timing variations of a few minutes, which were detected based on ground-based photometry. This made WASP-148 one of the few cases where such a phenomenon was detected without space-based photometry. Here, we present a self-consistent model of WASP-148 that takes into account the gravitational interactions between all known bodies in the system. Our analysis simultaneously fits the available radial velocities and transit light curves. In particular, we used the photometry secured by the Transiting Exoplanet Survey Satellite (TESS) and made public after the WASP-148 discovery announcement. The TESS data confirm the transit-timing variations, but only in combination with previously measured transit times. The system parameters we derived agree with those previously reported and have a significantly improved precision, including the mass of the non-transiting planet. We found a significant mutual inclination between the orbital planes of the two planets: I = 41.0+6.2 -7.6 based on the modelling of the observations, although we found I = 20.8 ± 4.6 when we imposed a constraint on the model enforcing long-term dynamical stability. When a third planet was added to the model - based on a candidate signal in the radial velocity - the mutual inclination between planets b and c changed significantly allowing solutions closer to coplanar. We conclude that more data are needed to establish the true architecture of the system. If the significant mutual inclination is confirmed, WASP-148 would become one of the only few candidate non-coplanar planetary systems. We discuss possible origins for this misalignment.
Fil: Almenara, J. M.. Universite Grenoble Alpes; Francia. Universidad de Ginebra; Suiza
Fil: Hébrard, G.. Observatoire de Haute-Provence; Francia. Institut Dastrophysique de Paris; Francia
Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina
Fil: Laskar, J.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
Fil: Correia, A. C. M.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia. Universidad de Coimbra; Portugal
Fil: Anderson, D. R.. University of Warwick; Reino Unido. Keele University; Reino Unido
Fil: Boisse, I.. Universite de Provence; Francia
Fil: Bonfils, X.. Universite Grenoble Alpes; Francia
Fil: Brown, D. J. A.. University of Warwick; Reino Unido
Fil: Casanova, V.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; España
Fil: Collier Cameron, A.. University of St. Andrews; Reino Unido
Fil: Fernández, M.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; España
Fil: Jenkins, J. M.. National Aeronautics and Space Administration; Estados Unidos
Fil: Kiefer, F.. Institut Dastrophysique de Paris; Francia. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
Fil: Lecavelier Des Etangs, A.. Institut Dastrophysique de Paris; Francia
Fil: Lissauer, J. J.. National Aeronautics and Space Administration; Estados Unidos
Fil: MacIejewski, G.. Nicolaus Copernicus University; Polonia
Fil: McCormac, J.. University of Warwick; Reino Unido
Fil: Osborn, H.. University of Warwick; Reino Unido. Universite de Provence; Francia. University of Bern; Suiza
Fil: Pollacco, D.. University of Warwick; Reino Unido
Fil: Ricker, G.. Massachusetts Institute of Technology; Estados Unidos
Fil: Sánchez, J.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; España
Fil: Seager, S.. Massachusetts Institute of Technology; Estados Unidos
Fil: Udry, S.. Universidad de Ginebra; Suiza
Fil: Verilhac, D.. Observatoire Hubert-Reeves; Francia
Fil: Winn, J.. University of Princeton; Estados Unidos - Materia
-
PLANETARY SYSTEMS
STARS: INDIVIDUAL: WASP-148
TECHNIQUES: PHOTOMETRIC
TECHNIQUES: RADIAL VELOCITIES - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/215974
Ver los metadatos del registro completo
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Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclinationAlmenara, J. M.Hébrard, G.Diaz, Rodrigo FernandoLaskar, J.Correia, A. C. M.Anderson, D. R.Boisse, I.Bonfils, X.Brown, D. J. A.Casanova, V.Collier Cameron, A.Fernández, M.Jenkins, J. M.Kiefer, F.Lecavelier Des Etangs, A.Lissauer, J. J.MacIejewski, G.McCormac, J.Osborn, H.Pollacco, D.Ricker, G.Sánchez, J.Seager, S.Udry, S.Verilhac, D.Winn, J.PLANETARY SYSTEMSSTARS: INDIVIDUAL: WASP-148TECHNIQUES: PHOTOMETRICTECHNIQUES: RADIAL VELOCITIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1WASP-148 is a recently announced extra-solar system harbouring at least two giant planets. The inner planet transits its host star. The planets travel on eccentric orbits and are near the 4:1 mean-motion resonance, which implies significant mutual gravitational interactions. In particular, this causes transit-timing variations of a few minutes, which were detected based on ground-based photometry. This made WASP-148 one of the few cases where such a phenomenon was detected without space-based photometry. Here, we present a self-consistent model of WASP-148 that takes into account the gravitational interactions between all known bodies in the system. Our analysis simultaneously fits the available radial velocities and transit light curves. In particular, we used the photometry secured by the Transiting Exoplanet Survey Satellite (TESS) and made public after the WASP-148 discovery announcement. The TESS data confirm the transit-timing variations, but only in combination with previously measured transit times. The system parameters we derived agree with those previously reported and have a significantly improved precision, including the mass of the non-transiting planet. We found a significant mutual inclination between the orbital planes of the two planets: I = 41.0+6.2 -7.6 based on the modelling of the observations, although we found I = 20.8 ± 4.6 when we imposed a constraint on the model enforcing long-term dynamical stability. When a third planet was added to the model - based on a candidate signal in the radial velocity - the mutual inclination between planets b and c changed significantly allowing solutions closer to coplanar. We conclude that more data are needed to establish the true architecture of the system. If the significant mutual inclination is confirmed, WASP-148 would become one of the only few candidate non-coplanar planetary systems. We discuss possible origins for this misalignment.Fil: Almenara, J. M.. Universite Grenoble Alpes; Francia. Universidad de Ginebra; SuizaFil: Hébrard, G.. Observatoire de Haute-Provence; Francia. Institut Dastrophysique de Paris; FranciaFil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; ArgentinaFil: Laskar, J.. Centre National de la Recherche Scientifique. Observatoire de Paris; FranciaFil: Correia, A. C. M.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia. Universidad de Coimbra; PortugalFil: Anderson, D. R.. University of Warwick; Reino Unido. Keele University; Reino UnidoFil: Boisse, I.. Universite de Provence; FranciaFil: Bonfils, X.. Universite Grenoble Alpes; FranciaFil: Brown, D. J. A.. University of Warwick; Reino UnidoFil: Casanova, V.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; EspañaFil: Collier Cameron, A.. University of St. Andrews; Reino UnidoFil: Fernández, M.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; EspañaFil: Jenkins, J. M.. National Aeronautics and Space Administration; Estados UnidosFil: Kiefer, F.. Institut Dastrophysique de Paris; Francia. Centre National de la Recherche Scientifique. Observatoire de Paris; FranciaFil: Lecavelier Des Etangs, A.. Institut Dastrophysique de Paris; FranciaFil: Lissauer, J. J.. National Aeronautics and Space Administration; Estados UnidosFil: MacIejewski, G.. Nicolaus Copernicus University; PoloniaFil: McCormac, J.. University of Warwick; Reino UnidoFil: Osborn, H.. University of Warwick; Reino Unido. Universite de Provence; Francia. University of Bern; SuizaFil: Pollacco, D.. University of Warwick; Reino UnidoFil: Ricker, G.. Massachusetts Institute of Technology; Estados UnidosFil: Sánchez, J.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; EspañaFil: Seager, S.. Massachusetts Institute of Technology; Estados UnidosFil: Udry, S.. Universidad de Ginebra; SuizaFil: Verilhac, D.. Observatoire Hubert-Reeves; FranciaFil: Winn, J.. University of Princeton; Estados UnidosEDP Sciences2022-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/215974Almenara, J. M.; Hébrard, G.; Diaz, Rodrigo Fernando; Laskar, J.; Correia, A. C. M.; et al.; Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination; EDP Sciences; Astronomy and Astrophysics; 663; 7-2022; 1-260004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2022/07/aa42964-21/aa42964-21.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202142964info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:03Zoai:ri.conicet.gov.ar:11336/215974instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:18:03.396CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination |
| title |
Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination |
| spellingShingle |
Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination Almenara, J. M. PLANETARY SYSTEMS STARS: INDIVIDUAL: WASP-148 TECHNIQUES: PHOTOMETRIC TECHNIQUES: RADIAL VELOCITIES |
| title_short |
Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination |
| title_full |
Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination |
| title_fullStr |
Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination |
| title_full_unstemmed |
Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination |
| title_sort |
Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination |
| dc.creator.none.fl_str_mv |
Almenara, J. M. Hébrard, G. Diaz, Rodrigo Fernando Laskar, J. Correia, A. C. M. Anderson, D. R. Boisse, I. Bonfils, X. Brown, D. J. A. Casanova, V. Collier Cameron, A. Fernández, M. Jenkins, J. M. Kiefer, F. Lecavelier Des Etangs, A. Lissauer, J. J. MacIejewski, G. McCormac, J. Osborn, H. Pollacco, D. Ricker, G. Sánchez, J. Seager, S. Udry, S. Verilhac, D. Winn, J. |
| author |
Almenara, J. M. |
| author_facet |
Almenara, J. M. Hébrard, G. Diaz, Rodrigo Fernando Laskar, J. Correia, A. C. M. Anderson, D. R. Boisse, I. Bonfils, X. Brown, D. J. A. Casanova, V. Collier Cameron, A. Fernández, M. Jenkins, J. M. Kiefer, F. Lecavelier Des Etangs, A. Lissauer, J. J. MacIejewski, G. McCormac, J. Osborn, H. Pollacco, D. Ricker, G. Sánchez, J. Seager, S. Udry, S. Verilhac, D. Winn, J. |
| author_role |
author |
| author2 |
Hébrard, G. Diaz, Rodrigo Fernando Laskar, J. Correia, A. C. M. Anderson, D. R. Boisse, I. Bonfils, X. Brown, D. J. A. Casanova, V. Collier Cameron, A. Fernández, M. Jenkins, J. M. Kiefer, F. Lecavelier Des Etangs, A. Lissauer, J. J. MacIejewski, G. McCormac, J. Osborn, H. Pollacco, D. Ricker, G. Sánchez, J. Seager, S. Udry, S. Verilhac, D. Winn, J. |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
PLANETARY SYSTEMS STARS: INDIVIDUAL: WASP-148 TECHNIQUES: PHOTOMETRIC TECHNIQUES: RADIAL VELOCITIES |
| topic |
PLANETARY SYSTEMS STARS: INDIVIDUAL: WASP-148 TECHNIQUES: PHOTOMETRIC TECHNIQUES: RADIAL VELOCITIES |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
WASP-148 is a recently announced extra-solar system harbouring at least two giant planets. The inner planet transits its host star. The planets travel on eccentric orbits and are near the 4:1 mean-motion resonance, which implies significant mutual gravitational interactions. In particular, this causes transit-timing variations of a few minutes, which were detected based on ground-based photometry. This made WASP-148 one of the few cases where such a phenomenon was detected without space-based photometry. Here, we present a self-consistent model of WASP-148 that takes into account the gravitational interactions between all known bodies in the system. Our analysis simultaneously fits the available radial velocities and transit light curves. In particular, we used the photometry secured by the Transiting Exoplanet Survey Satellite (TESS) and made public after the WASP-148 discovery announcement. The TESS data confirm the transit-timing variations, but only in combination with previously measured transit times. The system parameters we derived agree with those previously reported and have a significantly improved precision, including the mass of the non-transiting planet. We found a significant mutual inclination between the orbital planes of the two planets: I = 41.0+6.2 -7.6 based on the modelling of the observations, although we found I = 20.8 ± 4.6 when we imposed a constraint on the model enforcing long-term dynamical stability. When a third planet was added to the model - based on a candidate signal in the radial velocity - the mutual inclination between planets b and c changed significantly allowing solutions closer to coplanar. We conclude that more data are needed to establish the true architecture of the system. If the significant mutual inclination is confirmed, WASP-148 would become one of the only few candidate non-coplanar planetary systems. We discuss possible origins for this misalignment. Fil: Almenara, J. M.. Universite Grenoble Alpes; Francia. Universidad de Ginebra; Suiza Fil: Hébrard, G.. Observatoire de Haute-Provence; Francia. Institut Dastrophysique de Paris; Francia Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Físicas. - Universidad Nacional de San Martín. Instituto de Ciencias Físicas; Argentina Fil: Laskar, J.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia Fil: Correia, A. C. M.. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia. Universidad de Coimbra; Portugal Fil: Anderson, D. R.. University of Warwick; Reino Unido. Keele University; Reino Unido Fil: Boisse, I.. Universite de Provence; Francia Fil: Bonfils, X.. Universite Grenoble Alpes; Francia Fil: Brown, D. J. A.. University of Warwick; Reino Unido Fil: Casanova, V.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; España Fil: Collier Cameron, A.. University of St. Andrews; Reino Unido Fil: Fernández, M.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; España Fil: Jenkins, J. M.. National Aeronautics and Space Administration; Estados Unidos Fil: Kiefer, F.. Institut Dastrophysique de Paris; Francia. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia Fil: Lecavelier Des Etangs, A.. Institut Dastrophysique de Paris; Francia Fil: Lissauer, J. J.. National Aeronautics and Space Administration; Estados Unidos Fil: MacIejewski, G.. Nicolaus Copernicus University; Polonia Fil: McCormac, J.. University of Warwick; Reino Unido Fil: Osborn, H.. University of Warwick; Reino Unido. Universite de Provence; Francia. University of Bern; Suiza Fil: Pollacco, D.. University of Warwick; Reino Unido Fil: Ricker, G.. Massachusetts Institute of Technology; Estados Unidos Fil: Sánchez, J.. Consejo Superior de Investigaciones Científicas; España. Instituto de Astrofísica de Andalucía; España Fil: Seager, S.. Massachusetts Institute of Technology; Estados Unidos Fil: Udry, S.. Universidad de Ginebra; Suiza Fil: Verilhac, D.. Observatoire Hubert-Reeves; Francia Fil: Winn, J.. University of Princeton; Estados Unidos |
| description |
WASP-148 is a recently announced extra-solar system harbouring at least two giant planets. The inner planet transits its host star. The planets travel on eccentric orbits and are near the 4:1 mean-motion resonance, which implies significant mutual gravitational interactions. In particular, this causes transit-timing variations of a few minutes, which were detected based on ground-based photometry. This made WASP-148 one of the few cases where such a phenomenon was detected without space-based photometry. Here, we present a self-consistent model of WASP-148 that takes into account the gravitational interactions between all known bodies in the system. Our analysis simultaneously fits the available radial velocities and transit light curves. In particular, we used the photometry secured by the Transiting Exoplanet Survey Satellite (TESS) and made public after the WASP-148 discovery announcement. The TESS data confirm the transit-timing variations, but only in combination with previously measured transit times. The system parameters we derived agree with those previously reported and have a significantly improved precision, including the mass of the non-transiting planet. We found a significant mutual inclination between the orbital planes of the two planets: I = 41.0+6.2 -7.6 based on the modelling of the observations, although we found I = 20.8 ± 4.6 when we imposed a constraint on the model enforcing long-term dynamical stability. When a third planet was added to the model - based on a candidate signal in the radial velocity - the mutual inclination between planets b and c changed significantly allowing solutions closer to coplanar. We conclude that more data are needed to establish the true architecture of the system. If the significant mutual inclination is confirmed, WASP-148 would become one of the only few candidate non-coplanar planetary systems. We discuss possible origins for this misalignment. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-07 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
publishedVersion |
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http://hdl.handle.net/11336/215974 Almenara, J. M.; Hébrard, G.; Diaz, Rodrigo Fernando; Laskar, J.; Correia, A. C. M.; et al.; Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination; EDP Sciences; Astronomy and Astrophysics; 663; 7-2022; 1-26 0004-6361 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/215974 |
| identifier_str_mv |
Almenara, J. M.; Hébrard, G.; Diaz, Rodrigo Fernando; Laskar, J.; Correia, A. C. M.; et al.; Photodynamical analysis of the nearly resonant planetary system WASP-148: Accurate transit-timing variations and mutual orbital inclination; EDP Sciences; Astronomy and Astrophysics; 663; 7-2022; 1-26 0004-6361 CONICET Digital CONICET |
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eng |
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eng |
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