CHEOPS light curves of HD 15337 (TOI-402) [Dataset]

We present the 6 transit light curves of HD 15337 (TIC 120896927, TOI-402) obtained by CHEOPS: the reduced raw data and the detrended curves. The reduced original data can be obtained from DACE and the CHEOPS public archive.

Detalles Bibliográficos
Autores: Rosário, Nuno, Anglada-Escudé, Guillem, Ribas, Ignasi, Barrado y Navascués, David
Tipo de recurso: conjunto de datos
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/383599
Acceso en línea:http://hdl.handle.net/10261/383599
Access Level:acceso abierto
Palabra clave:Techniques: photometric
Techniques: radial velocities
Planets and satellites: composition
Stars: individual: HD 15337
Stars: individual: TOI-402
Stars: individual: TIC 12089692
Stars, double and multiple
Exoplanets
Photometry
Optical
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spelling CHEOPS light curves of HD 15337 (TOI-402) [Dataset]Rosário, NunoAnglada-Escudé, GuillemRibas, IgnasiBarrado y Navascués, DavidTechniques: photometricTechniques: radial velocitiesPlanets and satellites: compositionStars: individual: HD 15337Stars: individual: TOI-402Stars: individual: TIC 12089692Stars, double and multipleExoplanetsPhotometryOpticalWe present the 6 transit light curves of HD 15337 (TIC 120896927, TOI-402) obtained by CHEOPS: the reduced raw data and the detrended curves. The reduced original data can be obtained from DACE and the CHEOPS public archive.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. 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. 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. 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⊕. 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.Peer reviewedCentre de Données astronomiques de Strasbourg (CDS)Ribas, Ignasi [0000-0002-6689-0312]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/datasethttp://purl.org/coar/resource_type/c_ddb1http://hdl.handle.net/10261/383599reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésRosário, Nuno; Anglada-Escudé, Guillem; Ribas, Ignasi; Barrado y Navascués, David et al. Precise characterisation of HD 15337 with CHEOPS: A laboratory for planet formation and evolution. https://doi.org/10.1051/0004-6361/202347759. http://hdl.handle.net/10261/383425Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3835992026-05-22T06:33:51Z
dc.title.none.fl_str_mv CHEOPS light curves of HD 15337 (TOI-402) [Dataset]
title CHEOPS light curves of HD 15337 (TOI-402) [Dataset]
spellingShingle CHEOPS light curves of HD 15337 (TOI-402) [Dataset]
Rosário, Nuno
Techniques: photometric
Techniques: radial velocities
Planets and satellites: composition
Stars: individual: HD 15337
Stars: individual: TOI-402
Stars: individual: TIC 12089692
Stars, double and multiple
Exoplanets
Photometry
Optical
title_short CHEOPS light curves of HD 15337 (TOI-402) [Dataset]
title_full CHEOPS light curves of HD 15337 (TOI-402) [Dataset]
title_fullStr CHEOPS light curves of HD 15337 (TOI-402) [Dataset]
title_full_unstemmed CHEOPS light curves of HD 15337 (TOI-402) [Dataset]
title_sort CHEOPS light curves of HD 15337 (TOI-402) [Dataset]
dc.creator.none.fl_str_mv Rosário, Nuno
Anglada-Escudé, Guillem
Ribas, Ignasi
Barrado y Navascués, David
author Rosário, Nuno
author_facet Rosário, Nuno
Anglada-Escudé, Guillem
Ribas, Ignasi
Barrado y Navascués, David
author_role author
author2 Anglada-Escudé, Guillem
Ribas, Ignasi
Barrado y Navascués, David
author2_role author
author
author
dc.contributor.none.fl_str_mv Ribas, Ignasi [0000-0002-6689-0312]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Techniques: photometric
Techniques: radial velocities
Planets and satellites: composition
Stars: individual: HD 15337
Stars: individual: TOI-402
Stars: individual: TIC 12089692
Stars, double and multiple
Exoplanets
Photometry
Optical
topic Techniques: photometric
Techniques: radial velocities
Planets and satellites: composition
Stars: individual: HD 15337
Stars: individual: TOI-402
Stars: individual: TIC 12089692
Stars, double and multiple
Exoplanets
Photometry
Optical
description We present the 6 transit light curves of HD 15337 (TIC 120896927, TOI-402) obtained by CHEOPS: the reduced raw data and the detrended curves. The reduced original data can be obtained from DACE and the CHEOPS public archive.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/dataset
http://purl.org/coar/resource_type/c_ddb1
format dataset
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/383599
url http://hdl.handle.net/10261/383599
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Rosário, Nuno; Anglada-Escudé, Guillem; Ribas, Ignasi; Barrado y Navascués, David et al. Precise characterisation of HD 15337 with CHEOPS: A laboratory for planet formation and evolution. https://doi.org/10.1051/0004-6361/202347759. http://hdl.handle.net/10261/383425
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Centre de Données astronomiques de Strasbourg (CDS)
publisher.none.fl_str_mv Centre de Données astronomiques de Strasbourg (CDS)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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