An investigation of low-mass-ratio EW systems from the Catalina Sky Survey

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dc.contributor.authorLalounta, E.
dc.contributor.authorPapageorgiou, A.
dc.contributor.authorChristopoulou, P. E.
dc.contributor.authorCatelan, M.
dc.date.accessioned2024-01-10T12:37:35Z
dc.date.available2024-01-10T12:37:35Z
dc.date.issued2020
dc.description.abstractWe have conducted a survey of overcontact binary systems (EW) with mass ratio <= 0.25 from the Catalina Sky Survey (CSS) that are considered strong merger candidates and are probable progenitors of FK Com-type stars and blue stragglers. The discovery of such extreme mass ratio overcontact binaries is vital to resolve the critical mass ratio ambiguity to merge, the mass loss process, and to refine the current theoretical models. So far only a few tens of such systems have been identified. To increase this sample, we selected and derived the physical parameters (mass, temperature and radius ratios, inclination and fill-out factor, along with their respective uncertainties) of 92 newly discovered totally eclipsing low-mass-ratio (LMR) EW systems based on their VCSS light curves, using PHOEBE-0.31a scripter and Monte Carlo methods.
dc.description.funderFondecyt
dc.description.funderMinistry for the Economy, Development, and Tourism's Millennium Science Initiative
dc.description.funderProyecto Basal
dc.fechaingreso.objetodigital2024-05-23
dc.format.extent5 páginas
dc.fuente.origenWOS
dc.identifier.doi10.31577/caosp.2020.50.2.409
dc.identifier.eissn1336-0337
dc.identifier.issn1335-1842
dc.identifier.urihttps://doi.org/10.31577/caosp.2020.50.2.409
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76880
dc.identifier.wosidWOS:000523574300007
dc.information.autorucFísica;Catelan Marcio;S/I;1001556
dc.issue.numero2
dc.language.isoen
dc.nota.accesocontenido completo
dc.pagina.final413
dc.pagina.inicio409
dc.publisherSLOVAK ACADEMY SCIENCES ASTRONOMICAL INST
dc.revistaCONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO
dc.rightsacceso abierto
dc.subjectbinaries: close
dc.subjectbinaries: evolution
dc.subjectBINARIES
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleAn investigation of low-mass-ratio EW systems from the Catalina Sky Survey
dc.typeartículo
dc.volumen50
sipa.codpersvinculados1001556
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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