J/AJ/150/183ivo://CDS.VizieR/J/AJ/150/183doi:10.26093/cds/vizier.51500183CDSZasche P.Wolf M.Vrastil J.Pilarcik L.2018-01-04T08:23:08Z2016-04-20T15:29:58ZCDS support team

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

cds-question@unistra.frmagellanic-cloudseclipsing-binary-starsccd-photometryNew CCD observations for 13 eccentric eclipsing binaries from the Large Magellanic Cloud were carried out using the Danish 1.54 m telescope located at the La Silla Observatory in Chile. These systems were observed for their times of minimum and 56 new minima were obtained. These are needed for accurate determination of the apsidal motion. Besides that, in total 436 times of minimum were derived from the photometric databases OGLE and MACHO. The O - C diagrams of minimum timings for these B-type binaries were analyzed and the parameters of the apsidal motion were computed. The light curves of these systems were fitted using the program PHOEBE, giving the light curve parameters. We derived for the first time relatively short periods of the apsidal motion ranging from 21 to 107 years. The system OGLE-LMC-ECL-07902 was also analyzed using the spectra and radial velocities, resulting in masses of 6.8 and 4.4 M_{sun}_ for the eclipsing components. For one system (OGLE-LMC-ECL-20112), the third-body hypothesis was also used to describe the residuals after subtraction of the apsidal motion, resulting in a period of about 22 years. For several systems an additional third light was also detected, which makes these systems suspect for triplicity.2015AJ....150..183Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/150/183CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/236 : UBVR CCD survey of the Magellanic clouds (Massey+, 2002)J/A+A/572/A71 : Tlmes of minima for 18 SMC eclipsing binaries (Zasche, 2014)J/AcA/62/247 : LMC photometric maps from OGLE-III shallow surveyJ/AcA/61/103 : VI light curves of LMC eclipsing binaries (Graczyk+, 2011)J/AJ/134/1963 : MACHO r,b light curves of MC EBs (Faccioli+, 2007)J/AJ/128/1606 : Magellanic Clouds Photometric Survey: the LMC (Zaritsky+, 2004)J/AcA/54/1 : OGLE II SMC eclipsing binaries (Wyrzykowski+, 2004)J/AcA/53/1 : OGLE eclipsing binaries in LMC (Wyrzykowski+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/150/183https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/150/183http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/150/183https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/150/183https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/150/183http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/150/183GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/150/183/table2 (Identification of the analyzed systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/150/183/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/150/183/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/150/183/table2?GETtext/xml+votable180.050000true76.8525-68.49233330.0055555555555555566/33091 33094 33096 33097 33098 33100 33120https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/150/183?format=asciidefaultJ/AJ/150/183/table2Identification of the analyzed systemsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOGLE-III[7902/20498] Eclipsing binary identifier (OGLE LMC-ECL-NNNNN)meta.id;meta.mainintprimaryAllSimbad column added by the CDSmeta.numberintnullableMinSimbad column added by the CDSmeta.numberintnullableOGLE-IIOGLE-II identifier (1)meta.idcharMACHOMACHO identifier (NN.NNNN.NNNN)meta.idcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainImax[14.78/17.83] The I-band maximum magnitude (2)magphot.mag;em.opt.Ifloat(V-I)0[-0.36/0.12]? The (V-I)_0_ color index (3)magphot.color;em.opt.V;em.opt.Ifloatnullable(B-V)0[-0.265/-0.052]? The (B-V)_0_ color index (4)magphot.color;em.opt.B;em.opt.Vfloatnullablef_(B-V)0[e] Flag on (B-V)0 (e=value from Zaritsky et al. 2004 (cat. J/AJ/128/1606)meta.codecharW03Display the data from Wyrzykowski et al. 2003 (cat. J/AcA/53/1) within 1.5''meta.ref.urlintnullableU12Display the data from Ulaczyk et al. 2012 (cat. J/AcA/62/247) within 1.5''meta.ref.urlintnullableM02Display the data from Massey 2002 (cat. II/236) within 5''meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/AJ/150/183/table1List of the minimum timings used for the analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOGLE-III[7902/20498] Eclipsing binary identifier (OGLE-LMC-ECL-NNNNN)meta.id;meta.mainintJDJulian Date of the observationdtime.epochdoublee_JDError in JDdstat.error;time.epochdoubleTypeEclipse type (Prim or Sec)meta.codecharFlt[B+R I] Filter used in observation (B+R, I, or R)instr.setup;obscharSourceObservatory or project source of data (DK154, MACHO, OGLE II, or OGLE III) (1)meta.bibchar