Unveiling short-period binaries in the inner VVV bulge

Autores
Botan, E.; Saito, Roberto; Minniti, D.; Kanaan, A.; Contreras Ramos, R.; Ferreira, T. S.; Gramajo, Luciana Veronica; Navarro, M. G.
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Most of our knowledge of the structure of the Milky Way has come from the study of variable stars. Among these variables, mimicking the periodic variation of pulsating stars, are eclipsing binaries. These stars are important in astrophysics because they allow us to directly measure the radii and masses of the components, as well as the distance to the system, thus being useful in studies of Galactic structure alongside pulsating RR Lyrae and Cepheids. Using the distinguishing features of their light curves, one can identify them using a semi-automated process. In this work, we present a strategy to search for eclipsing variables in the inner VVV bulge across an area of 13.4 deg2 within 1.68° < l < 7.53° and-3.73° < b <-1.44°, corresponding to the VVV tiles b293-b296 and b307-b310. We accurately classify 212 previously unknown eclipsing binaries, including six very reddened sources. A preliminary analysis suggests that these eclipsing binaries are located in the most obscured regions of the foreground disc and bulge of the Galaxy. This search is therefore complementary to other variable-star searches carried out at optical wavelengths.
Fil: Botan, E.. Universidade Federal de Santa Catarina; Brasil. Universidade Federal de Mato Grosso; Brasil
Fil: Saito, Roberto. Universidade Federal de Santa Catarina; Brasil
Fil: Minniti, D.. Universidad Andrés Bello; Chile. Vatican Observatory; Italia
Fil: Kanaan, A.. Universidade Federal de Santa Catarina; Brasil
Fil: Contreras Ramos, R.. Pontificia Universidad Católica de Chile; Chile. Instituto Milenio de Astrofísica; Chile
Fil: Ferreira, T. S.. Universidade Federal de Santa Catarina; Brasil
Fil: Gramajo, Luciana Veronica. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Navarro, M. G.. Universidad Andrés Bello; Chile. Università degli Studi di Roma "La Sapienza"; Italia. Instituto Milenio de Astrofísica; Chile
Materia
BINARIES: ECLIPSING
GALAXY: BULGE
GALAXY: DISC
GALAXY: STELLAR CONTENT
SURVEYS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/152733
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Unveiling short-period binaries in the inner VVV bulgeBotan, E.Saito, RobertoMinniti, D.Kanaan, A.Contreras Ramos, R.Ferreira, T. S.Gramajo, Luciana VeronicaNavarro, M. G.BINARIES: ECLIPSINGGALAXY: BULGEGALAXY: DISCGALAXY: STELLAR CONTENTSURVEYShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Most of our knowledge of the structure of the Milky Way has come from the study of variable stars. Among these variables, mimicking the periodic variation of pulsating stars, are eclipsing binaries. These stars are important in astrophysics because they allow us to directly measure the radii and masses of the components, as well as the distance to the system, thus being useful in studies of Galactic structure alongside pulsating RR Lyrae and Cepheids. Using the distinguishing features of their light curves, one can identify them using a semi-automated process. In this work, we present a strategy to search for eclipsing variables in the inner VVV bulge across an area of 13.4 deg2 within 1.68° < l < 7.53° and-3.73° < b <-1.44°, corresponding to the VVV tiles b293-b296 and b307-b310. We accurately classify 212 previously unknown eclipsing binaries, including six very reddened sources. A preliminary analysis suggests that these eclipsing binaries are located in the most obscured regions of the foreground disc and bulge of the Galaxy. This search is therefore complementary to other variable-star searches carried out at optical wavelengths.Fil: Botan, E.. Universidade Federal de Santa Catarina; Brasil. Universidade Federal de Mato Grosso; BrasilFil: Saito, Roberto. Universidade Federal de Santa Catarina; BrasilFil: Minniti, D.. Universidad Andrés Bello; Chile. Vatican Observatory; ItaliaFil: Kanaan, A.. Universidade Federal de Santa Catarina; BrasilFil: Contreras Ramos, R.. Pontificia Universidad Católica de Chile; Chile. Instituto Milenio de Astrofísica; ChileFil: Ferreira, T. S.. Universidade Federal de Santa Catarina; BrasilFil: Gramajo, Luciana Veronica. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Navarro, M. G.. Universidad Andrés Bello; Chile. Università degli Studi di Roma "La Sapienza"; Italia. Instituto Milenio de Astrofísica; ChileWiley Blackwell Publishing, Inc2021-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/152733Botan, E.; Saito, Roberto; Minniti, D.; Kanaan, A.; Contreras Ramos, R.; et al.; Unveiling short-period binaries in the inner VVV bulge; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 504; 1; 6-2021; 654-6660035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/504/1/654/6239328info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab888info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2103.16023info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:11:40Zoai:ri.conicet.gov.ar:11336/152733instacron: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 13:11:40.375CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Unveiling short-period binaries in the inner VVV bulge
title Unveiling short-period binaries in the inner VVV bulge
spellingShingle Unveiling short-period binaries in the inner VVV bulge
Botan, E.
BINARIES: ECLIPSING
GALAXY: BULGE
GALAXY: DISC
GALAXY: STELLAR CONTENT
SURVEYS
title_short Unveiling short-period binaries in the inner VVV bulge
title_full Unveiling short-period binaries in the inner VVV bulge
title_fullStr Unveiling short-period binaries in the inner VVV bulge
title_full_unstemmed Unveiling short-period binaries in the inner VVV bulge
title_sort Unveiling short-period binaries in the inner VVV bulge
dc.creator.none.fl_str_mv Botan, E.
Saito, Roberto
Minniti, D.
Kanaan, A.
Contreras Ramos, R.
Ferreira, T. S.
Gramajo, Luciana Veronica
Navarro, M. G.
author Botan, E.
author_facet Botan, E.
Saito, Roberto
Minniti, D.
Kanaan, A.
Contreras Ramos, R.
Ferreira, T. S.
Gramajo, Luciana Veronica
Navarro, M. G.
author_role author
author2 Saito, Roberto
Minniti, D.
Kanaan, A.
Contreras Ramos, R.
Ferreira, T. S.
Gramajo, Luciana Veronica
Navarro, M. G.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv BINARIES: ECLIPSING
GALAXY: BULGE
GALAXY: DISC
GALAXY: STELLAR CONTENT
SURVEYS
topic BINARIES: ECLIPSING
GALAXY: BULGE
GALAXY: DISC
GALAXY: STELLAR CONTENT
SURVEYS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Most of our knowledge of the structure of the Milky Way has come from the study of variable stars. Among these variables, mimicking the periodic variation of pulsating stars, are eclipsing binaries. These stars are important in astrophysics because they allow us to directly measure the radii and masses of the components, as well as the distance to the system, thus being useful in studies of Galactic structure alongside pulsating RR Lyrae and Cepheids. Using the distinguishing features of their light curves, one can identify them using a semi-automated process. In this work, we present a strategy to search for eclipsing variables in the inner VVV bulge across an area of 13.4 deg2 within 1.68° < l < 7.53° and-3.73° < b <-1.44°, corresponding to the VVV tiles b293-b296 and b307-b310. We accurately classify 212 previously unknown eclipsing binaries, including six very reddened sources. A preliminary analysis suggests that these eclipsing binaries are located in the most obscured regions of the foreground disc and bulge of the Galaxy. This search is therefore complementary to other variable-star searches carried out at optical wavelengths.
Fil: Botan, E.. Universidade Federal de Santa Catarina; Brasil. Universidade Federal de Mato Grosso; Brasil
Fil: Saito, Roberto. Universidade Federal de Santa Catarina; Brasil
Fil: Minniti, D.. Universidad Andrés Bello; Chile. Vatican Observatory; Italia
Fil: Kanaan, A.. Universidade Federal de Santa Catarina; Brasil
Fil: Contreras Ramos, R.. Pontificia Universidad Católica de Chile; Chile. Instituto Milenio de Astrofísica; Chile
Fil: Ferreira, T. S.. Universidade Federal de Santa Catarina; Brasil
Fil: Gramajo, Luciana Veronica. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Navarro, M. G.. Universidad Andrés Bello; Chile. Università degli Studi di Roma "La Sapienza"; Italia. Instituto Milenio de Astrofísica; Chile
description Most of our knowledge of the structure of the Milky Way has come from the study of variable stars. Among these variables, mimicking the periodic variation of pulsating stars, are eclipsing binaries. These stars are important in astrophysics because they allow us to directly measure the radii and masses of the components, as well as the distance to the system, thus being useful in studies of Galactic structure alongside pulsating RR Lyrae and Cepheids. Using the distinguishing features of their light curves, one can identify them using a semi-automated process. In this work, we present a strategy to search for eclipsing variables in the inner VVV bulge across an area of 13.4 deg2 within 1.68° < l < 7.53° and-3.73° < b <-1.44°, corresponding to the VVV tiles b293-b296 and b307-b310. We accurately classify 212 previously unknown eclipsing binaries, including six very reddened sources. A preliminary analysis suggests that these eclipsing binaries are located in the most obscured regions of the foreground disc and bulge of the Galaxy. This search is therefore complementary to other variable-star searches carried out at optical wavelengths.
publishDate 2021
dc.date.none.fl_str_mv 2021-06
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/11336/152733
Botan, E.; Saito, Roberto; Minniti, D.; Kanaan, A.; Contreras Ramos, R.; et al.; Unveiling short-period binaries in the inner VVV bulge; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 504; 1; 6-2021; 654-666
0035-8711
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/152733
identifier_str_mv Botan, E.; Saito, Roberto; Minniti, D.; Kanaan, A.; Contreras Ramos, R.; et al.; Unveiling short-period binaries in the inner VVV bulge; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 504; 1; 6-2021; 654-666
0035-8711
1365-2966
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/504/1/654/6239328
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab888
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2103.16023
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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_ 1842980601007702016
score 12.993085

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