A peculiar interacting Be star binary in the Small Magellanic Cloud

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 a...

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Detalles Bibliográficos
Autores principales:	Mennickent, Ronald E., Rivinius, Thomas, Cidale, Lydia Sonia, Soszyński, Igor, Fernández Trincado, José G
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2018
Materias:	Ciencias Astronómicas Ciencias Exactas Stars: binaries (including multiple) close Stars: binaries: spectroscopic Stars: circumstellar matter Stars: emission-line Be Stars: evolution Stars: variables: general
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/123440
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-123440
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
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
spellingShingle	Ciencias Astronómicas Ciencias Exactas Stars: binaries (including multiple) close Stars: binaries: spectroscopic Stars: circumstellar matter Stars: emission-line Be Stars: evolution Stars: variables: general Mennickent, Ronald E. Rivinius, Thomas Cidale, Lydia Sonia Soszyński, Igor Fernández Trincado, José G A peculiar interacting Be star binary in the Small Magellanic Cloud
topic_facet	Ciencias Astronómicas Ciencias Exactas Stars: binaries (including multiple) close Stars: binaries: spectroscopic Stars: circumstellar matter Stars: emission-line Be Stars: evolution Stars: variables: general
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.
format	Articulo Articulo
author	Mennickent, Ronald E. Rivinius, Thomas Cidale, Lydia Sonia Soszyński, Igor Fernández Trincado, José G
author_facet	Mennickent, Ronald E. Rivinius, Thomas Cidale, Lydia Sonia Soszyński, Igor Fernández Trincado, José G
author_sort	Mennickent, Ronald E.
title	A peculiar interacting Be star binary in the Small Magellanic Cloud
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	peculiar interacting be star binary in the small magellanic cloud
publishDate	2018
url	http://sedici.unlp.edu.ar/handle/10915/123440
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bdutipo_str	Repositorios
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A peculiar interacting Be star binary in the Small Magellanic Cloud

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