A peculiar interacting Be star binary in the Small Magellanic Cloud

Autores
Mennickent, Ronald E.; Rivinius, Thomas; Cidale, Lydia Sonia; Soszyński, Igor; Fernández Trincado, José G
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We find that the emission-line object OGLEJ005039.05-725751.4, a member of the cluster OGLE-CL SMC 64, exhibits a peculiar light curve pattern repeating with a recurrence time of 141.45 days. The light curve resembles periodic outbursts with a duty cycle of 20%. A second long cycle of 2500 days is also detected in the photometric data set. Two X-SHOOTER spectra obtained at minimum and maximum reveal a Be star dominating at minimum light resembling the Classical Be star 48 Lib. The larger Hα emission, the stronger Na D absorption and the appearance of emission in the infrared Ca II triplet at maximum, might indicate periodic mass transfer in a complex binary system.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
Materia
Ciencias Astronómicas
Ciencias Exactas
Stars: binaries (including multiple) close
Stars: binaries: spectroscopic
Stars: circumstellar matter
Stars: emission-line
Be
Stars: evolution
Stars: variables: general
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/123440
Acceder
id SEDICI_2784d12f487460cc9ad8cec32159b9f5
oai_identifier_str oai:sedici.unlp.edu.ar:10915/123440
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling A peculiar interacting Be star binary in the Small Magellanic CloudMennickent, Ronald E.Rivinius, ThomasCidale, Lydia SoniaSoszyński, IgorFernández Trincado, José GCiencias AstronómicasCiencias ExactasStars: binaries (including multiple) closeStars: binaries: spectroscopicStars: circumstellar matterStars: emission-lineBeStars: evolutionStars: variables: generalWe find that the emission-line object OGLEJ005039.05-725751.4, a member of the cluster OGLE-CL SMC 64, exhibits a peculiar light curve pattern repeating with a recurrence time of 141.45 days. The light curve resembles periodic outbursts with a duty cycle of 20%. A second long cycle of 2500 days is also detected in the photometric data set. Two X-SHOOTER spectra obtained at minimum and maximum reveal a Be star dominating at minimum light resembling the Classical Be star 48 Lib. The larger Hα emission, the stronger Na D absorption and the appearance of emission in the infrared Ca II triplet at maximum, might indicate periodic mass transfer in a complex binary system.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2018-07-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/123440enginfo:eu-repo/semantics/altIdentifier/issn/0004-6280info:eu-repo/semantics/altIdentifier/issn/1538-3873info:eu-repo/semantics/altIdentifier/arxiv/1807.00907info:eu-repo/semantics/altIdentifier/doi/10.1088/1538-3873/aaca88info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:29:29Zoai:sedici.unlp.edu.ar:10915/123440Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:29:29.595SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv A peculiar interacting Be star binary in the Small Magellanic Cloud
title A peculiar interacting Be star binary in the Small Magellanic Cloud
spellingShingle A peculiar interacting Be star binary in the Small Magellanic Cloud
Mennickent, Ronald E.
Ciencias Astronómicas
Ciencias Exactas
Stars: binaries (including multiple) close
Stars: binaries: spectroscopic
Stars: circumstellar matter
Stars: emission-line
Be
Stars: evolution
Stars: variables: general
title_short A peculiar interacting Be star binary in the Small Magellanic Cloud
title_full A peculiar interacting Be star binary in the Small Magellanic Cloud
title_fullStr A peculiar interacting Be star binary in the Small Magellanic Cloud
title_full_unstemmed A peculiar interacting Be star binary in the Small Magellanic Cloud
title_sort A peculiar interacting Be star binary in the Small Magellanic Cloud
dc.creator.none.fl_str_mv Mennickent, Ronald E.
Rivinius, Thomas
Cidale, Lydia Sonia
Soszyński, Igor
Fernández Trincado, José G
author Mennickent, Ronald E.
author_facet Mennickent, Ronald E.
Rivinius, Thomas
Cidale, Lydia Sonia
Soszyński, Igor
Fernández Trincado, José G
author_role author
author2 Rivinius, Thomas
Cidale, Lydia Sonia
Soszyński, Igor
Fernández Trincado, José G
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Ciencias Exactas
Stars: binaries (including multiple) close
Stars: binaries: spectroscopic
Stars: circumstellar matter
Stars: emission-line
Be
Stars: evolution
Stars: variables: general
topic Ciencias Astronómicas
Ciencias Exactas
Stars: binaries (including multiple) close
Stars: binaries: spectroscopic
Stars: circumstellar matter
Stars: emission-line
Be
Stars: evolution
Stars: variables: general
dc.description.none.fl_txt_mv We find that the emission-line object OGLEJ005039.05-725751.4, a member of the cluster OGLE-CL SMC 64, exhibits a peculiar light curve pattern repeating with a recurrence time of 141.45 days. The light curve resembles periodic outbursts with a duty cycle of 20%. A second long cycle of 2500 days is also detected in the photometric data set. Two X-SHOOTER spectra obtained at minimum and maximum reveal a Be star dominating at minimum light resembling the Classical Be star 48 Lib. The larger Hα emission, the stronger Na D absorption and the appearance of emission in the infrared Ca II triplet at maximum, might indicate periodic mass transfer in a complex binary system.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
description We find that the emission-line object OGLEJ005039.05-725751.4, a member of the cluster OGLE-CL SMC 64, exhibits a peculiar light curve pattern repeating with a recurrence time of 141.45 days. The light curve resembles periodic outbursts with a duty cycle of 20%. A second long cycle of 2500 days is also detected in the photometric data set. Two X-SHOOTER spectra obtained at minimum and maximum reveal a Be star dominating at minimum light resembling the Classical Be star 48 Lib. The larger Hα emission, the stronger Na D absorption and the appearance of emission in the infrared Ca II triplet at maximum, might indicate periodic mass transfer in a complex binary system.
publishDate 2018
dc.date.none.fl_str_mv 2018-07-24
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/123440
url http://sedici.unlp.edu.ar/handle/10915/123440
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0004-6280
info:eu-repo/semantics/altIdentifier/issn/1538-3873
info:eu-repo/semantics/altIdentifier/arxiv/1807.00907
info:eu-repo/semantics/altIdentifier/doi/10.1088/1538-3873/aaca88
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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