J/A+A/539/A139ivo://CDS.VizieR/J/A+A/539/A139doi:10.26093/cds/vizier.35390139CDSTamajo E.Munari U.Siviero A.Tomasella L.Dallaporta S.2017-06-22T14:28:44Z2012-03-12T15:45:04ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.freclipsing-binary-starsinfrared-photometryvisible-astronomybroad-band-photometryWe present a spectroscopic and photometric analysis of the multiple system and early-type eclipsing binary SZ Cam (O9 IV + B0.5 V), which consists of an eclipsing SB2 pair of orbital period P=2.7-days in a long orbit (~55yrs) around a non-eclipsing SB1 pair of orbital period P=2.8-days. We have reconstructed the spectra of the individual components of SZ Cam from the observed composite spectra using the technique of spectral disentangling. We used them together with extensive and accurate BV IC CCD photometry to obtain an orbital solution. Our photometry revealed the presence of a beta Cep variable in the SZ Cam hierarchical system, probably located within the non-eclipsing SB1 pair. The pulsation period is 0.33265+/-0.00005-days and the observed total amplitude in the B band is 0.0105+/-0.0005mag. NLTE analysis of the disentangled spectra provided atmospheric parameters for all three components, consistent with those derived from orbital solution.2012A&A...539A.139Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/539/A139CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/480/465 : V505 Per BV light curves (Tomasella+, 2008)J/A+A/483/263 : BV light curve of V570 Per (Tomasella+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/539/A139https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/539/A139http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/539/A139https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/539/A139https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/539/A139http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/539/A139GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap3.322582951404819e-19 3.852589004194616e-19OpticalInfrareddefaultJ/A+A/539/A139/table3B, V, Ic photometric data for SZ CamrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateObservation date (Year)time.epoch;obsHJDHeliocentric Julian Datedtime.epochdoubleVmagJohnson V-band measurementmagphot.mag;em.opt.Vfloate_VmagError in V-bandmagstat.error;phot.mag;em.opt.VfloatB-VJohnson B-V colour indexmagphot.color;em.opt.B;em.opt.Vfloate_B-VError of B-Vmagstat.error;phot.color;em.opt.BfloatV-IcJohnson-Cousins V-Ic colour indexmagphot.color;em.opt.V;em.opt.Ifloate_V-IcError of V-Icmagstat.error;phot.color;em.opt.Vfloat