A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae

Autores
Qian, S. B.; Liu, L.; Zhu, L. Y.; Dai, Z. B.; Fernandez Lajus, Eduardo Eusebio; Baume, Gustavo Luis
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
By using six newly determined mid-eclipse times together with those collected from the literature, we have found that the observed minus calculated (O−C) curve of RR Cae shows a cyclic change with a period of 11.9 yr and an amplitude of 14.3 s while it undergoes an upward parabolic variation [revealing a long-term period increase at a rate of ˙P= +4.18(±0.20) × 10−12]. The cyclic change was analysed for the light-travel-time effect that arises from the gravitational influence of a third companion. The mass of the third body was determined to be M3sin i = 4.2(± 0.4)MJup, suggesting that it is a circumbinary giant planet when its orbital inclination is larger than 17. ◦ 6. The orbital separation of the circumbinary planet from the central eclipsing binary is about 5.3(± 0.6) au. The period increase is opposite to the changes caused by angular momentum loss via magnetic braking or/and gravitational radiation; and it cannot be explained by the mass transfer between both components because of its detached configuration. These indicate that the observed upward parabolic change is only a part of a long-period (longer than 26.3 yr) cyclic variation, which may reveal the presence of another giant circumbinary planet in a wide orbit.
Fil: Qian, S. B.. Chinese Academy of Sciences; República de China
Fil: Liu, L.. Chinese Academy of Sciences; República de China
Fil: Zhu, L. Y.. Chinese Academy of Sciences; República de China
Fil: Dai, Z. B.. Chinese Academy of Sciences; República de China
Fil: Fernandez Lajus, Eduardo Eusebio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Materia
STARS: BINARIES: CLOSE
STARS: BINARIES: ECLIPSING
STARS: INDIVIDUALS (RR CAE)
STARS: WHITE DWARFS
STARS: PLANETARY SYSTEMS
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:11336/232325
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/232325
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR CaeQian, S. B.Liu, L.Zhu, L. Y.Dai, Z. B.Fernandez Lajus, Eduardo EusebioBaume, Gustavo LuisSTARS: BINARIES: CLOSESTARS: BINARIES: ECLIPSINGSTARS: INDIVIDUALS (RR CAE)STARS: WHITE DWARFSSTARS: PLANETARY SYSTEMShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1By using six newly determined mid-eclipse times together with those collected from the literature, we have found that the observed minus calculated (O−C) curve of RR Cae shows a cyclic change with a period of 11.9 yr and an amplitude of 14.3 s while it undergoes an upward parabolic variation [revealing a long-term period increase at a rate of ˙P= +4.18(±0.20) × 10−12]. The cyclic change was analysed for the light-travel-time effect that arises from the gravitational influence of a third companion. The mass of the third body was determined to be M3sin i = 4.2(± 0.4)MJup, suggesting that it is a circumbinary giant planet when its orbital inclination is larger than 17. ◦ 6. The orbital separation of the circumbinary planet from the central eclipsing binary is about 5.3(± 0.6) au. The period increase is opposite to the changes caused by angular momentum loss via magnetic braking or/and gravitational radiation; and it cannot be explained by the mass transfer between both components because of its detached configuration. These indicate that the observed upward parabolic change is only a part of a long-period (longer than 26.3 yr) cyclic variation, which may reveal the presence of another giant circumbinary planet in a wide orbit.Fil: Qian, S. B.. Chinese Academy of Sciences; República de ChinaFil: Liu, L.. Chinese Academy of Sciences; República de ChinaFil: Zhu, L. Y.. Chinese Academy of Sciences; República de ChinaFil: Dai, Z. B.. Chinese Academy of Sciences; República de ChinaFil: Fernandez Lajus, Eduardo Eusebio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaWiley2012-05info: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/11336/232325Qian, S. B.; Liu, L.; Zhu, L. Y.; Dai, Z. B.; Fernandez Lajus, Eduardo Eusebio; et al.; A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae; Wiley; Monthly Notices of the Royal Astronomical Society Letters; 422; 1; 5-2012; L24-L271745-39251745-3933CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1745-3933.2012.01228.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/422/1/L24/971085info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:12:38Zoai:ri.conicet.gov.ar:11336/232325instacron: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:34982025-09-10 13:12:38.897CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae
title A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae
spellingShingle A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae
Qian, S. B.
STARS: BINARIES: CLOSE
STARS: BINARIES: ECLIPSING
STARS: INDIVIDUALS (RR CAE)
STARS: WHITE DWARFS
STARS: PLANETARY SYSTEMS
title_short A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae
title_full A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae
title_fullStr A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae
title_full_unstemmed A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae
title_sort A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae
dc.creator.none.fl_str_mv Qian, S. B.
Liu, L.
Zhu, L. Y.
Dai, Z. B.
Fernandez Lajus, Eduardo Eusebio
Baume, Gustavo Luis
author Qian, S. B.
author_facet Qian, S. B.
Liu, L.
Zhu, L. Y.
Dai, Z. B.
Fernandez Lajus, Eduardo Eusebio
Baume, Gustavo Luis
author_role author
author2 Liu, L.
Zhu, L. Y.
Dai, Z. B.
Fernandez Lajus, Eduardo Eusebio
Baume, Gustavo Luis
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv STARS: BINARIES: CLOSE
STARS: BINARIES: ECLIPSING
STARS: INDIVIDUALS (RR CAE)
STARS: WHITE DWARFS
STARS: PLANETARY SYSTEMS
topic STARS: BINARIES: CLOSE
STARS: BINARIES: ECLIPSING
STARS: INDIVIDUALS (RR CAE)
STARS: WHITE DWARFS
STARS: PLANETARY SYSTEMS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv By using six newly determined mid-eclipse times together with those collected from the literature, we have found that the observed minus calculated (O−C) curve of RR Cae shows a cyclic change with a period of 11.9 yr and an amplitude of 14.3 s while it undergoes an upward parabolic variation [revealing a long-term period increase at a rate of ˙P= +4.18(±0.20) × 10−12]. The cyclic change was analysed for the light-travel-time effect that arises from the gravitational influence of a third companion. The mass of the third body was determined to be M3sin i = 4.2(± 0.4)MJup, suggesting that it is a circumbinary giant planet when its orbital inclination is larger than 17. ◦ 6. The orbital separation of the circumbinary planet from the central eclipsing binary is about 5.3(± 0.6) au. The period increase is opposite to the changes caused by angular momentum loss via magnetic braking or/and gravitational radiation; and it cannot be explained by the mass transfer between both components because of its detached configuration. These indicate that the observed upward parabolic change is only a part of a long-period (longer than 26.3 yr) cyclic variation, which may reveal the presence of another giant circumbinary planet in a wide orbit.
Fil: Qian, S. B.. Chinese Academy of Sciences; República de China
Fil: Liu, L.. Chinese Academy of Sciences; República de China
Fil: Zhu, L. Y.. Chinese Academy of Sciences; República de China
Fil: Dai, Z. B.. Chinese Academy of Sciences; República de China
Fil: Fernandez Lajus, Eduardo Eusebio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
description By using six newly determined mid-eclipse times together with those collected from the literature, we have found that the observed minus calculated (O−C) curve of RR Cae shows a cyclic change with a period of 11.9 yr and an amplitude of 14.3 s while it undergoes an upward parabolic variation [revealing a long-term period increase at a rate of ˙P= +4.18(±0.20) × 10−12]. The cyclic change was analysed for the light-travel-time effect that arises from the gravitational influence of a third companion. The mass of the third body was determined to be M3sin i = 4.2(± 0.4)MJup, suggesting that it is a circumbinary giant planet when its orbital inclination is larger than 17. ◦ 6. The orbital separation of the circumbinary planet from the central eclipsing binary is about 5.3(± 0.6) au. The period increase is opposite to the changes caused by angular momentum loss via magnetic braking or/and gravitational radiation; and it cannot be explained by the mass transfer between both components because of its detached configuration. These indicate that the observed upward parabolic change is only a part of a long-period (longer than 26.3 yr) cyclic variation, which may reveal the presence of another giant circumbinary planet in a wide orbit.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
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/11336/232325
Qian, S. B.; Liu, L.; Zhu, L. Y.; Dai, Z. B.; Fernandez Lajus, Eduardo Eusebio; et al.; A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae; Wiley; Monthly Notices of the Royal Astronomical Society Letters; 422; 1; 5-2012; L24-L27
1745-3925
1745-3933
CONICET Digital
CONICET
url http://hdl.handle.net/11336/232325
identifier_str_mv Qian, S. B.; Liu, L.; Zhu, L. Y.; Dai, Z. B.; Fernandez Lajus, Eduardo Eusebio; et al.; A circumbinary planet in orbit around the short-period white dwarf eclipsing binary RR Cae; Wiley; Monthly Notices of the Royal Astronomical Society Letters; 422; 1; 5-2012; L24-L27
1745-3925
1745-3933
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1745-3933.2012.01228.x
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/422/1/L24/971085
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
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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_ 1842980660647559168
score 12.993085

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