A peculiar interacting Be star binary in the Small Magellanic Cloud

dc.creatorMennickent, Ronald E.
dc.creatorRivinius, Thomas
dc.creatorCidale, Lydia Sonia
dc.creatorSoszyński, Igor
dc.creatorFernández Trincado, José G
dc.date2018-07-24
dc.date2021-08-25T18:24:10Z
dc.date.accessioned2023-07-15T02:53:13Z
dc.date.available2023-07-15T02:53:13Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/123440
dc.identifierissn:0004-6280
dc.identifierissn:1538-3873
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7463644
dc.descriptionWe 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.
dc.descriptionFacultad de Ciencias Astronómicas y Geofísicas
dc.descriptionInstituto de Astrofísica de La Plata
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)
dc.subjectCiencias Astronómicas
dc.subjectCiencias Exactas
dc.subjectStars: binaries (including multiple) close
dc.subjectStars: binaries: spectroscopic
dc.subjectStars: circumstellar matter
dc.subjectStars: emission-line
dc.subjectBe
dc.subjectStars: evolution
dc.subjectStars: variables: general
dc.titleA peculiar interacting Be star binary in the Small Magellanic Cloud
dc.typeArticulo
dc.typeArticulo


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