TOI-732 TESS and CHEOPS detrended light curves [Dataset]

Bonfanti, A. et al. -- TOI-732 detrended CHEOPS and TESS light curves. The Characterising Exoplanet Satellite (CHEOPS) collected 25 light curves of TOI-732 from January 8 to April 10, 2022. The Transiting Exoplanet Survey Satellite (TESS) observed the system in cycle 1 (Sector 8; from 28 February to...

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Detalhes bibliográficos
Autores: Bonfanti, Andrea, Barrado y Navascués, David, Ribas, Ignasi
Formato: conjunto de datos
Fecha de publicación:2024
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/384144
Acesso em linha:http://hdl.handle.net/10261/384144
Access Level:acceso abierto
Palavra-chave:Techniques: photometric
Techniques: radial velocities
Planets and satellites: fundamental parameters
Stars: fundamental parameters
Stars, double and multiple
Exoplanets
Photometry
Optical
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spelling TOI-732 TESS and CHEOPS detrended light curves [Dataset]Bonfanti, AndreaBarrado y Navascués, DavidRibas, IgnasiTechniques: photometricTechniques: radial velocitiesPlanets and satellites: fundamental parametersStars: fundamental parametersStars, double and multipleExoplanetsPhotometryOpticalBonfanti, A. et al. -- TOI-732 detrended CHEOPS and TESS light curves. The Characterising Exoplanet Satellite (CHEOPS) collected 25 light curves of TOI-732 from January 8 to April 10, 2022. The Transiting Exoplanet Survey Satellite (TESS) observed the system in cycle 1 (Sector 8; from 28 February to 26 March 2019) in cycle 3 (Sector 35; from 9 February to 7 March 2021), and in cycle 5 (Sector 62; from 12 February to 10 March 2023).TOI-732 is an M dwarf hosting two transiting planets, which are located on the two opposite sides of the radius valley. Inferring a reliable demographics for these kind of systems is key to understand their formation and evolution mechanisms. By doubling the number of available space-based observations and increasing the number of radial velocity (RV) measurements, we aim at refining the parameters of TOI-732 b and c. We also aim at using the results to study the slope of both the radius valley and the density valley for a well characterised sample of M dwarf exoplanets. We performed a global MCMC analysis by jointly modelling ground-based light curves, CHEOPS and TESS observations, along with RV time series both taken from the literature and obtained with the MAROON-X spectrograph. The slopes of the M dwarf valleys were quantified via a Support Vector Machine (SVM) procedure. TOI-732 b is an ultra short period planet (P=0.76837931_-0.00000042_^+0.00000039^d) with a radius R_b_=1.325_-0.058_^+0.057^R_{Earth}_, a mass M_b_=2.46+/-0.19M_{Earth}_, and thus a mean density rho_b_=5.8_-0.8_^+1.0^g/cm^3^, while the outer planet at P=12.252284+/-0.000013d has R_c_=2.39_-0.11_^+0.10^R_{Earth}_, M_c_=8.04_-0.48_^+0.50^M_{Earth}_, and thus rho_c_=3.24_-0.43_^+0.55^g/cm^3^. Even with respect to the most recently reported values, this work yields to smaller uncertainties on the transit depths and on the RV semi-amplitudes up to a factor of ~1.6 and ~2.4 for TOI-732 b and c, respectively. Both our interior structure calculations and the location of the planets in the Mass-Radius diagram leads us to classify TOI-732 b as a super-Earth and TOI-732 c as a mini-Neptune. Following the SVM approach, we quantified Rslope=-0.065_-0.013_^+0.024^, which is flatter than for Sun-like stars. In line with former analyses, we noted a more filled radius valley for M-planets and we further quantified the density valley slope as Rhoslope=-0.02_-0.04_^+0.12^. Compared to FGK stars, the weaker dependence of the position of the radius valley with orbital period might indicate a heavier influence of formation relative to evolution mechanisms in shaping the radius valley around M-dwarfs.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/10261/384144reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésBonfanti, A. et al. Characterising TOI-732 b and c: New insights into the M-dwarf radius and density valley. https://doi.org/10.1051/0004-6361/202348180. http://hdl.handle.net/10261/383881Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3841442026-05-22T06:33:51Z
dc.title.none.fl_str_mv TOI-732 TESS and CHEOPS detrended light curves [Dataset]
title TOI-732 TESS and CHEOPS detrended light curves [Dataset]
spellingShingle TOI-732 TESS and CHEOPS detrended light curves [Dataset]
Bonfanti, Andrea
Techniques: photometric
Techniques: radial velocities
Planets and satellites: fundamental parameters
Stars: fundamental parameters
Stars, double and multiple
Exoplanets
Photometry
Optical
title_short TOI-732 TESS and CHEOPS detrended light curves [Dataset]
title_full TOI-732 TESS and CHEOPS detrended light curves [Dataset]
title_fullStr TOI-732 TESS and CHEOPS detrended light curves [Dataset]
title_full_unstemmed TOI-732 TESS and CHEOPS detrended light curves [Dataset]
title_sort TOI-732 TESS and CHEOPS detrended light curves [Dataset]
dc.creator.none.fl_str_mv Bonfanti, Andrea
Barrado y Navascués, David
Ribas, Ignasi
author Bonfanti, Andrea
author_facet Bonfanti, Andrea
Barrado y Navascués, David
Ribas, Ignasi
author_role author
author2 Barrado y Navascués, David
Ribas, Ignasi
author2_role 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: fundamental parameters
Stars: fundamental parameters
Stars, double and multiple
Exoplanets
Photometry
Optical
topic Techniques: photometric
Techniques: radial velocities
Planets and satellites: fundamental parameters
Stars: fundamental parameters
Stars, double and multiple
Exoplanets
Photometry
Optical
description Bonfanti, A. et al. -- TOI-732 detrended CHEOPS and TESS light curves. The Characterising Exoplanet Satellite (CHEOPS) collected 25 light curves of TOI-732 from January 8 to April 10, 2022. The Transiting Exoplanet Survey Satellite (TESS) observed the system in cycle 1 (Sector 8; from 28 February to 26 March 2019) in cycle 3 (Sector 35; from 9 February to 7 March 2021), and in cycle 5 (Sector 62; from 12 February to 10 March 2023).
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/10261/384144
url http://hdl.handle.net/10261/384144
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Bonfanti, A. et al. Characterising TOI-732 b and c: New insights into the M-dwarf radius and density valley. https://doi.org/10.1051/0004-6361/202348180. http://hdl.handle.net/10261/383881
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
_version_ 1869406187500339200
score 15,81155

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