J/AJ/158/193ivo://CDS.VizieR/J/AJ/158/193doi:10.26093/cds/vizier.51580193CDSCheng Y.Zhang L.-Y.Han X.L.Long L.Lu H.Yue Q.Jiang L.2020-04-16T12:29:25Z2020-01-20T14:08:42ZCDS 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 new CCD photometric light curves about two eclipsing binaries of V582 Lyr and V1016 Oph. Our observations were carried out by the SARA 91.4 cm telescope of America in 2016 and the 60 cm telescope of Chile in 2018. V582 Lyr's spectra type was classified as K5, and its radial velocity was determined using the LAMOST spectral survey. There are absorptions in the observed H{alpha} line and excess emissions in the subtracted H{alpha} line, which show weak chromospheric activity. We obtained the updated ephemeris information for V582 Lr and V1016 Oph, and found that their orbital periods are both decreasing. We concluded that the decreased rate is -0.474 (+/-0.011)x10^-7^ days/yr for V582 Lyr and 3.460 (+/-0.014)x10^-7^ days/yr for V1016 Oph. For V582 Lyr, the period variation was interpreted as a mass transfer from the secondary component to the primary one, and the corresponding rate is dM_2_/dt=-1.10 (+/-0.03)x10^-7^ M_{sun}_/yr. For V1016 Oph, we explain it by transferring from the primary component to the secondary one, and the corresponding rate is dM_1_/dt=-2.69 (+/-0.04)x10^-7^ M_{sun}_/yr. The photometric solution of V1016 Oph was obtained by analyzing the CCD photometry with the Wilson-Devinney program. We also obtained the orbital parameters of V1016 Oph by simultaneously analyzing our BVRI light curves and radial-velocity curve from the LAMOST low-resolution spectral survey. Finally, our orbital solution shows that they are contact eclipsing binaries with contact factors of 3.35 (+/-0.08)% for V582 Lyr and 41.0 (+/-0.1)% for V1016 Oph.2019AJ....158..193Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/158/193CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/other/IBVS/5438 : 162-nd list of minima of eclipsing binariesJ/other/IBVS/5543 : 163-nd list of minima of eclipsing binariesJ/other/IBVS/5592 : Eclipsing binary stars photoelectric minima (Krajci+, 2005)J/AJ/147/45 : Kepler mission. IV. Eclipse times for close binarieshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/158/193https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/158/193http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/158/193https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/158/193https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/158/193http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/158/193GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/158/193/table2Original photometric data of V582 Lyr observed on 2016 July 4 and V1016 Oph observed on 2018 April 23, 27 and May 3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (V582 Lyr or V1016 Oph)meta.id;meta.maincharHJD-B? Heliocentric Julian Date of B band observationdtime.epochdoublenullableDBmag[-1.127/1.839]? Differential B band magnitudemagphot.mag;arith.difffloatnullableHJD-V? Heliocentric Julian Date of V band observationdtime.epochdoublenullableDVmag[-2.513/1.383]? Differential V band magnitudemagphot.mag;arith.difffloatnullableHJD-R? Heliocentric Julian Date of R band observationdtime.epochdoublenullableDRmag[-0.236/1.002]? Differential R band magnitudemagphot.mag;arith.difffloatnullableHJD-I? Heliocentric Julian Date of I band observationdtime.epochdoublenullableDImag[-0.633/0.583]? Differential I band magnitudemagphot.mag;arith.difffloatnullableJ/AJ/158/193/table5Minimum times and their relevant parameters of V582 Lyr and V1016 OphRef[1/27] Reference code (2)meta.noteintIDObject identifier (V582 Lyr or V1016 Oph)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJD[46907.542/58241.876] Heliocentric Julian Date; HJD-2400000dtime.epochdoublee_HJD[0.0/0.0143]? Uncertainty in HJDdstat.error;time.epochfloatnullableMinMinimum type (primary or secondary)meta.codecharTypeObservation type (1)meta.code;obscharCycle[-3782/24587.5] Cycle numbermeta.idfloat(O-C)I[-0.0333/0.0194] The (O-C)I values of linear fit residualsstat.fit.residualfloat(O-C)II[-0.0239/0.0101] The (O-C)II values of polynomial fit residualsstat.fit.residualfloat