J/AJ/163/157ivo://CDS.VizieR/J/AJ/163/157doi:10.26093/cds/vizier.51630157CDSHong K.Woo Lee J.Park J.-H.Kim H.-Y.Lee C.-U.Kim H.-W.Kim D.-J.,Han C.2022-09-06T08:01:32Z2022-05-24T06:37:33ZCDS support team

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

cds-question@unistra.frmultiple-starsinfrared-photometryvisible-astronomyphotometryWe present the orbital-period variations of 14127 contact eclipsing binaries (CEBs) based on the OGLE-III&IV observations in the Galactic bulge. New times of minimum lights for the CEBs were derived by binary modeling for the full seasonal light curves, which were made from survey observations at an interval of 1yr. The orbital-period changes of the systems were classified based on the statistical inference, multiple-hypothesis testing error measure, and visual inspection of the eclipse-timing diagrams. As the results, we identified 13716 CEBs with a parabola, 307 CEBs with a sinusoid, and 104 CEBs with the two variations. The period distributions of the inner close binaries and the outer companions were in the ranges of 0.235-0.990days and 5.0-14.0yr, respectively. In our sample of 13820 CEBs showing a parabolic variation, the highest decreasing and increasing period rates were determined to be P=-1.38{+/-}0.06x10^-5^day/yr for OGLE-BLG-ECL-169991 and P=8.99{+/-}0.44x10^-6^day/yr for OGLE-BLG-ECL-189805, respectively. The secular period change rates were distributed almost symmetrically around zero, and most of them lie within P={+/-}5.0x10^-6^day/yr.2022AJ....163..157Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/157CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/289/871 : YY Eri & AE Phe (Maceroni+, 1994)J/A+A/311/523 : Photometry of W UMa (Maceroni+, 1996)J/AcA/56/253 : Period changes of OGLE contact binaries (Kubiak+, 2006)J/AJ/147/91 : Differential BVR light curves of V407 Peg (Lee+, 2014)J/MNRAS/448/946 : Kepler eclipse timing variation analyses (Borkovits+, 2015)J/AJ/150/1 : Eclipse timings 27 eclipsing binaries in the SMC (Hong+, 2015)J/MNRAS/455/4136 : Kepler triples (Borkovits+, 2016)J/MNRAS/460/650 : Apsidal motions of 90 SMC eccentric binaries (Hong+, 2016)J/AcA/66/405 : Galactic bulge eclipsing & ellipsoidal bin. (Soszynski+, 2016)J/AJ/158/185 : 3 binary systems in the Large Magellanic Cloud (Hong+, 2019)J/A+A/631/A126 : KIC 9832227 light curves (Kovacs+, 2019)J/A+A/630/A75 : Six luminous red novae photometry (Pastorello+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/157https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/157http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/157https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/157https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/157http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/157GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/163/157/table2 (*The secular period change rates for the 13716 CEBs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/157/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/157/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/157/table2?GETtext/xml+votable180.050000true268.5375-32.09861110.005555555555555556Cone search capability for table J/AJ/163/157/table3 (*Results of sine-curve fit for the 307 CEBs with a sinusodal period change)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/157/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/157/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/157/table3?GETtext/xml+votable180.050000true265.1085-22.57447220.005555555555555556Cone search capability for table J/AJ/163/157/table4 (*The fitted parameters for the parabolic plus sinusoidal ephemeris of 104 Contact EBs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/157/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/157/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/157/table4?GETtext/xml+votable180.050000true266.08275-33.63111110.0055555555555555564/1795 5/7176-7177 7179 7192 7194-7195 7198 7205 7211 7216-7217 7220-7221 7226-7227 7312-7313 6/28686 28698-28699 28702-28703 28712-28713 28715 28746 28774-28775 28786 28796 28798-28799 28801 28804-28805 28816-28817 28819 28828-28829 28838 28841 28843 28857 28860 28872-28873 28876-28877 28888-28889 28920 28922 29056 29058 29064 29184-29185 29207 29256-29257 29260-29261 29264-29266 29272-29273 42837https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/163/157?format=asciiOpticalInfrareddefaultJ/AJ/163/157/table2*The secular period change rates for the 13716 CEBsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDOGLE name; OGLE BLG-meta.id;meta.maincharRAJ2000[17/18] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainindexedDEJ2000[19/37] Degree of Declination (J2000)pos.eq.dec;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharImag[12.5/20.1] Apparent I magmagphot.mag;em.opt.IfloatV-I[0/3.61]? The (V-I) colormagphot.color;em.opt.V;em.opt.IfloatnullablePer[0.19/1.6] Orbital Perioddtime.perioddoublee_Per[0/9e-06] Error in Perioddstat.errordoubleHJD[2456999/2457002] Epochdtime.epochdoubleindexede_HJD[0/0.03] Error in T0dstat.error;time.epochfloatdP/dt[-1.38e-05/8.99e-06] Period change rated/yrarith.rate;time.perioddoublee_dP/dt[3.6e-09/1.96e-06] Error in dP/dtd/yrstat.errordoubleJ/AJ/163/157/table3*Results of sine-curve fit for the 307 CEBs with a sinusodal period changePer2*Outer triple period; The others (1)yrtime.periodcharSimbadSimbad column added by the CDSmeta.ref.urlcharIDOGLE name; OGLE BLG-meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[17/18] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[22/35] Degree of Declination (J2000)pos.eq.dec;meta.mainImag[13.3/19.6] Apparent I magmagphot.mag;em.opt.IfloatV-I[0.4/3.08]? The (V-I) colormagphot.color;em.opt.V;em.opt.IfloatnullablePer[0.23/0.99] Orbital Perioddtime.perioddoublee_Per[1e-07/3e-07] Error of Orbital Perioddstat.errordoubleHJD[2456999/2457001] Epochdtime.epochdoublee_HJD[0.0001/0.002] Error in T0dstat.error;time.epochfloatPer2[5/14] Outer triple period; This studyyrtime.periodfloate_Per2[0.1/1.2] Error in P2; This studyyrstat.errorfloatJ/AJ/163/157/table4*The fitted parameters for the parabolic plus sinusoidal ephemeris of 104 Contact EBsV-I[0.64/2.48]? The (V-I) colormagphot.color;em.opt.V;em.opt.IfloatnullablePer[0.27/0.96] Orbital Perioddtime.perioddoublee_Per2[0.1/0.4] Error in P2; This studyyrstat.errorfloatPer2*Outer triple period; The others (1)yrtime.periodcharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDOGLE name; OGLE BLG-meta.id;meta.maincharRAJ2000[17/18] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[26/35] Degree of Declination (J2000)pos.eq.dec;meta.mainImag[13.2/19.6] Apparent I magmagphot.mag;em.opt.Ifloate_Per[1e-07/2e-06] Error in Perioddstat.errordoubleHJD[7000/7001] Epoch; HJD-2450000dtime.epochdoublee_HJD[0.0001/0.002] Error in T0dstat.error;time.epochfloatdP/dt[-2.38e-06/2.51e-06] Period change rated/yrarith.rate;time.perioddoublee_dP/dt[1.38e-07/6.3e-07] Error in dP/dtd/yrstat.errordoublePer2[5/10.6] Outer triple period; This studyyrtime.periodfloat