Absolute densities, masses, and radii of the WASP-47 system determined dynamically

Autores
Almenara, J. M.; Diaz, Rodrigo Fernando; Bonfils, X.; Udry, S.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a self-consistent modelling of the available light curve and radial velocity data of WASP-47 that takes into account the gravitational interactions between all known bodies in the system. The joint analysis of light curve and radial velocity data in a multi-planetary system allows deriving absolute densities, radii, and masses without the use of theoretical stellar models. For WASP-47 the precision is limited by the reduced dynamical information that is due to the short time span of the K2 light curve. We achieve a precision of around 22% for the radii of the star and the transiting planets, between 40% and 60% for their masses, and between 1.5% and 38% for their densities. All values agree with previously reported measurements. When theoretical stellar models are included, the system parameters are determined with a precision that exceeds that achieved by previous studies, thanks to the self-consistent modelling of light curve and radial velocity data.
Fil: Almenara, J. M.. Université de Genève; Suiza
Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Bonfils, X.. Université Grenoble Alpes; Francia
Fil: Udry, S.. Université de Genève; Suiza
Materia
stars: individual: WASP-47
planetary systems
techniques: photometric
techniques: radial velocities
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/18125
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Absolute densities, masses, and radii of the WASP-47 system determined dynamicallyAlmenara, J. M.Diaz, Rodrigo FernandoBonfils, X.Udry, S.stars: individual: WASP-47planetary systemstechniques: photometrictechniques: radial velocitieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a self-consistent modelling of the available light curve and radial velocity data of WASP-47 that takes into account the gravitational interactions between all known bodies in the system. The joint analysis of light curve and radial velocity data in a multi-planetary system allows deriving absolute densities, radii, and masses without the use of theoretical stellar models. For WASP-47 the precision is limited by the reduced dynamical information that is due to the short time span of the K2 light curve. We achieve a precision of around 22% for the radii of the star and the transiting planets, between 40% and 60% for their masses, and between 1.5% and 38% for their densities. All values agree with previously reported measurements. When theoretical stellar models are included, the system parameters are determined with a precision that exceeds that achieved by previous studies, thanks to the self-consistent modelling of light curve and radial velocity data.Fil: Almenara, J. M.. Université de Genève; SuizaFil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Bonfils, X.. Université Grenoble Alpes; FranciaFil: Udry, S.. Université de Genève; SuizaEdp Sciences2016-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18125Almenara, J. M.; Diaz, Rodrigo Fernando; Bonfils, X.; Udry, S.; Absolute densities, masses, and radii of the WASP-47 system determined dynamically; Edp Sciences; Astronomy And Astrophysics; 595; L5; 10-2016; 1-120004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201629770info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1610.09533info:eu-repo/semantics/altIdentifier/ark/https://www.aanda.org/articles/aa/abs/2016/11/aa29770-16/aa29770-16.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:24:36Zoai:ri.conicet.gov.ar:11336/18125instacron: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 10:24:37.194CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Absolute densities, masses, and radii of the WASP-47 system determined dynamically
title Absolute densities, masses, and radii of the WASP-47 system determined dynamically
spellingShingle Absolute densities, masses, and radii of the WASP-47 system determined dynamically
Almenara, J. M.
stars: individual: WASP-47
planetary systems
techniques: photometric
techniques: radial velocities
title_short Absolute densities, masses, and radii of the WASP-47 system determined dynamically
title_full Absolute densities, masses, and radii of the WASP-47 system determined dynamically
title_fullStr Absolute densities, masses, and radii of the WASP-47 system determined dynamically
title_full_unstemmed Absolute densities, masses, and radii of the WASP-47 system determined dynamically
title_sort Absolute densities, masses, and radii of the WASP-47 system determined dynamically
dc.creator.none.fl_str_mv Almenara, J. M.
Diaz, Rodrigo Fernando
Bonfils, X.
Udry, S.
author Almenara, J. M.
author_facet Almenara, J. M.
Diaz, Rodrigo Fernando
Bonfils, X.
Udry, S.
author_role author
author2 Diaz, Rodrigo Fernando
Bonfils, X.
Udry, S.
author2_role author
author
author
dc.subject.none.fl_str_mv stars: individual: WASP-47
planetary systems
techniques: photometric
techniques: radial velocities
topic stars: individual: WASP-47
planetary systems
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 We present a self-consistent modelling of the available light curve and radial velocity data of WASP-47 that takes into account the gravitational interactions between all known bodies in the system. The joint analysis of light curve and radial velocity data in a multi-planetary system allows deriving absolute densities, radii, and masses without the use of theoretical stellar models. For WASP-47 the precision is limited by the reduced dynamical information that is due to the short time span of the K2 light curve. We achieve a precision of around 22% for the radii of the star and the transiting planets, between 40% and 60% for their masses, and between 1.5% and 38% for their densities. All values agree with previously reported measurements. When theoretical stellar models are included, the system parameters are determined with a precision that exceeds that achieved by previous studies, thanks to the self-consistent modelling of light curve and radial velocity data.
Fil: Almenara, J. M.. Université de Genève; Suiza
Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Bonfils, X.. Université Grenoble Alpes; Francia
Fil: Udry, S.. Université de Genève; Suiza
description We present a self-consistent modelling of the available light curve and radial velocity data of WASP-47 that takes into account the gravitational interactions between all known bodies in the system. The joint analysis of light curve and radial velocity data in a multi-planetary system allows deriving absolute densities, radii, and masses without the use of theoretical stellar models. For WASP-47 the precision is limited by the reduced dynamical information that is due to the short time span of the K2 light curve. We achieve a precision of around 22% for the radii of the star and the transiting planets, between 40% and 60% for their masses, and between 1.5% and 38% for their densities. All values agree with previously reported measurements. When theoretical stellar models are included, the system parameters are determined with a precision that exceeds that achieved by previous studies, thanks to the self-consistent modelling of light curve and radial velocity data.
publishDate 2016
dc.date.none.fl_str_mv 2016-10
dc.type.none.fl_str_mv 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
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/18125
Almenara, J. M.; Diaz, Rodrigo Fernando; Bonfils, X.; Udry, S.; Absolute densities, masses, and radii of the WASP-47 system determined dynamically; Edp Sciences; Astronomy And Astrophysics; 595; L5; 10-2016; 1-12
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/18125
identifier_str_mv Almenara, J. M.; Diaz, Rodrigo Fernando; Bonfils, X.; Udry, S.; Absolute densities, masses, and radii of the WASP-47 system determined dynamically; Edp Sciences; Astronomy And Astrophysics; 595; L5; 10-2016; 1-12
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201629770
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1610.09533
info:eu-repo/semantics/altIdentifier/ark/https://www.aanda.org/articles/aa/abs/2016/11/aa29770-16/aa29770-16.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Edp Sciences
publisher.none.fl_str_mv Edp Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844614243177988096
score 13.070432

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