Accurate absolute parameters of the binary system V4089 Sgr

Autores
Gonzalez, Jorge Federico; Veramendi Pont, María Eugenia
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We carried out a spectroscopic and photometric analysis of the binary V4089 Sgr with the aim to obtain absolute masses and radii of the components and to compare these parameters with stellar evolution theoretical models. We took high-resolution spectra and measured radial velocity using standard cross-correlations and a technique of spectral disentangling. Absolute parameters of the components were determined through the simultaneous fitting of measured radial velocities and Geneva photometric data available in the literature. In this way we obtained Ma=2.584+-0.008 Msun, Mb=1.607+-0.007 Msun, Ra=3.959+-0.013 Rsun, and Rb=1.605+-0.016 Rsun. The comparison of these parameters with two grids of theoretical models led to estimate narrow ranges of possible values for system metallicity and age. According to circularization theory it was not expected that the binary had achieved a circular orbit as a result of tidal friction, so the null eccentricity found is an interesting fact. On the other hand, we measured the projected rotational velocity of both components and we conclude that the primary is not synchronized with orbital motion.
Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Cientiâ­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
Fil: Veramendi Pont, María Eugenia. Consejo Nacional de Investigaciones Cientiâ­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
Materia
BINARIES: ECLIPSING
BINARIES: SPECTROSCOPIC
STARS: INDIVIDUAL (V4089 SGR)
STARS: FUNDAMENTAL PARAMETERS
Nivel de accesibilidad
acceso embargado
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/4890
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/4890
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Accurate absolute parameters of the binary system V4089 SgrGonzalez, Jorge FedericoVeramendi Pont, María EugeniaBINARIES: ECLIPSINGBINARIES: SPECTROSCOPICSTARS: INDIVIDUAL (V4089 SGR)STARS: FUNDAMENTAL PARAMETERShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We carried out a spectroscopic and photometric analysis of the binary V4089 Sgr with the aim to obtain absolute masses and radii of the components and to compare these parameters with stellar evolution theoretical models. We took high-resolution spectra and measured radial velocity using standard cross-correlations and a technique of spectral disentangling. Absolute parameters of the components were determined through the simultaneous fitting of measured radial velocities and Geneva photometric data available in the literature. In this way we obtained Ma=2.584+-0.008 Msun, Mb=1.607+-0.007 Msun, Ra=3.959+-0.013 Rsun, and Rb=1.605+-0.016 Rsun. The comparison of these parameters with two grids of theoretical models led to estimate narrow ranges of possible values for system metallicity and age. According to circularization theory it was not expected that the binary had achieved a circular orbit as a result of tidal friction, so the null eccentricity found is an interesting fact. On the other hand, we measured the projected rotational velocity of both components and we conclude that the primary is not synchronized with orbital motion.Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Cientiâ­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; ArgentinaFil: Veramendi Pont, María Eugenia. Consejo Nacional de Investigaciones Cientiâ­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; ArgentinaElsevier2014-08info:eu-repo/date/embargoEnd/2016-09-14info: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/11336/4890Gonzalez, Jorge Federico; Veramendi Pont, María Eugenia; Accurate absolute parameters of the binary system V4089 Sgr; Elsevier; New Astronomy; 34; 8-2014; 266-2701384-1076enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1384107614001171info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.newast.2014.08.004info:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1405.7037info:eu-repo/semantics/altIdentifier/arxiv/1405.7037info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:18:23Zoai:ri.conicet.gov.ar:11336/4890instacron: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:34982025-10-22 11:18:24.287CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Accurate absolute parameters of the binary system V4089 Sgr
title Accurate absolute parameters of the binary system V4089 Sgr
spellingShingle Accurate absolute parameters of the binary system V4089 Sgr
Gonzalez, Jorge Federico
BINARIES: ECLIPSING
BINARIES: SPECTROSCOPIC
STARS: INDIVIDUAL (V4089 SGR)
STARS: FUNDAMENTAL PARAMETERS
title_short Accurate absolute parameters of the binary system V4089 Sgr
title_full Accurate absolute parameters of the binary system V4089 Sgr
title_fullStr Accurate absolute parameters of the binary system V4089 Sgr
title_full_unstemmed Accurate absolute parameters of the binary system V4089 Sgr
title_sort Accurate absolute parameters of the binary system V4089 Sgr
dc.creator.none.fl_str_mv Gonzalez, Jorge Federico
Veramendi Pont, María Eugenia
author Gonzalez, Jorge Federico
author_facet Gonzalez, Jorge Federico
Veramendi Pont, María Eugenia
author_role author
author2 Veramendi Pont, María Eugenia
author2_role author
dc.subject.none.fl_str_mv BINARIES: ECLIPSING
BINARIES: SPECTROSCOPIC
STARS: INDIVIDUAL (V4089 SGR)
STARS: FUNDAMENTAL PARAMETERS
topic BINARIES: ECLIPSING
BINARIES: SPECTROSCOPIC
STARS: INDIVIDUAL (V4089 SGR)
STARS: FUNDAMENTAL PARAMETERS
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 carried out a spectroscopic and photometric analysis of the binary V4089 Sgr with the aim to obtain absolute masses and radii of the components and to compare these parameters with stellar evolution theoretical models. We took high-resolution spectra and measured radial velocity using standard cross-correlations and a technique of spectral disentangling. Absolute parameters of the components were determined through the simultaneous fitting of measured radial velocities and Geneva photometric data available in the literature. In this way we obtained Ma=2.584+-0.008 Msun, Mb=1.607+-0.007 Msun, Ra=3.959+-0.013 Rsun, and Rb=1.605+-0.016 Rsun. The comparison of these parameters with two grids of theoretical models led to estimate narrow ranges of possible values for system metallicity and age. According to circularization theory it was not expected that the binary had achieved a circular orbit as a result of tidal friction, so the null eccentricity found is an interesting fact. On the other hand, we measured the projected rotational velocity of both components and we conclude that the primary is not synchronized with orbital motion.
Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Cientiâ­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
Fil: Veramendi Pont, María Eugenia. Consejo Nacional de Investigaciones Cientiâ­ficas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
description We carried out a spectroscopic and photometric analysis of the binary V4089 Sgr with the aim to obtain absolute masses and radii of the components and to compare these parameters with stellar evolution theoretical models. We took high-resolution spectra and measured radial velocity using standard cross-correlations and a technique of spectral disentangling. Absolute parameters of the components were determined through the simultaneous fitting of measured radial velocities and Geneva photometric data available in the literature. In this way we obtained Ma=2.584+-0.008 Msun, Mb=1.607+-0.007 Msun, Ra=3.959+-0.013 Rsun, and Rb=1.605+-0.016 Rsun. The comparison of these parameters with two grids of theoretical models led to estimate narrow ranges of possible values for system metallicity and age. According to circularization theory it was not expected that the binary had achieved a circular orbit as a result of tidal friction, so the null eccentricity found is an interesting fact. On the other hand, we measured the projected rotational velocity of both components and we conclude that the primary is not synchronized with orbital motion.
publishDate 2014
dc.date.none.fl_str_mv 2014-08
info:eu-repo/date/embargoEnd/2016-09-14
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/11336/4890
Gonzalez, Jorge Federico; Veramendi Pont, María Eugenia; Accurate absolute parameters of the binary system V4089 Sgr; Elsevier; New Astronomy; 34; 8-2014; 266-270
1384-1076
url http://hdl.handle.net/11336/4890
identifier_str_mv Gonzalez, Jorge Federico; Veramendi Pont, María Eugenia; Accurate absolute parameters of the binary system V4089 Sgr; Elsevier; New Astronomy; 34; 8-2014; 266-270
1384-1076
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1384107614001171
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.newast.2014.08.004
info:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1405.7037
info:eu-repo/semantics/altIdentifier/arxiv/1405.7037
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv embargoedAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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