J/AJ/153/248ivo://CDS.VizieR/J/AJ/153/248doi:10.26093/cds/vizier.51530248CDSRen A.B.Zhang X.B.Fu J.N.Zhang Y.P.Cang T.Q.Fox-Machado L.,Li C.Q.Khokhuntod P.Luo Y.P.2017-09-04T08:30:07Z2017-08-10T08:38:17ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsradial-velocityTime-series, multi-color photometry and high-resolution spectra of the short-period eclipsing binary V Tri were obtained through observation. The completely covered light and radial velocity (RV) curves of the binary system are presented. All times of light minima derived from both photoelectric and CCD photometry were used to calculate the orbital period and new ephemerides of the eclipsing system. The analysis of the O-C diagram reveals that the orbital period is 0.58520481 days, decreasing at a rate of dP/dt=-7.80x10^-8^ day/yr. The mass transfer between the two components and the light-time-travel effect due to a third body could be used to explain the period decrease. However, a semi-detached configuration with the lower-mass component filling and the primary nearly filling each of their Roche lobes was derived from the synthesis of the light and RV curves by using the 2015 version of the Wilson-Devinney code. We consider the period decrease to be the nonconservative mass transfer from the secondary component to the primary and the mass loss of the system, which was thought to be an EB type, while it should be an EA type (semi-detached Algol-type) from our study. The masses, radii, and luminosities of the primary and secondary are 1.60+/-0.07M_{sun}_, 1.64+/-0.02R_{sun}_, and 14.14+/-0.73L_{sun}_ and 0.74+/-0.02M_{sun}_, 1.23+/-0.02R_{sun}_, and 1.65+/-0.05L_{sun}_, respectively.2017AJ....153..248Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/153/248CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/other/IBVS/5984 : Minima and maxima of 503 variables (Hubscher, 2011)J/other/IBVS/5918 : Minima and maxima of 452 variables (Hubscher+, 2010)J/other/JAVSO/38.183 : Time of minima of eclipsing binaries (Samolyk+, 2010)J/other/IBVS/5830 : Minima and maxima of 292 variables (Hubscher+, 2008)J/other/IBVS/5761 : Minima and maxima of 389 variables (Hubscher+, 2007)J/other/IBVS/5731 : Minima and maxima of 816 variables (Hubscher+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/153/248https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/153/248http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/153/248https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/153/248https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/153/248http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/153/248GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/153/248/table2 (Main feature parameters of the variable, comparison, and check stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/153/248/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/153/248/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/153/248/table2?GETtext/xml+votable180.050000true22.946262530.367102780.0055555555555555566/2154https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/153/248?format=asciiOpticaldefaultJ/AJ/153/248/table4Photoelectric and CCD times of light minima of V Tri along with the residuals computed from the quadratic ephemeridesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2400000) of light minimum timedtime.epochdoublee_HJD? Error in HJDdstat.error;time.epochfloatnullableMethMethod (CCD or pe=photoelectric)meta.code;obscharMinMinimum type (I or II)meta.codenullableEEpoch numbermeta.id;meta.mainfloatL(O-C)The (O-C) linear residual for the time of light minimumdstat.fit.residualfloatLQ(O-C)The (O-C) quadratic residual for the time of light minimumdstat.fit.residualfloatRef[1/34] Reference; in refs.dat filemeta.ref;pos.frameintJ/AJ/153/248/table3Heliocentric radial velocities of the primary component for V TrirecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2400000)dtime.epochdoublePhasePhasetime.phasefloatRVRadial velocitykm/sphys.veloc;pos.heliocentricinte_RVError in RVkm/sstat.errorintJ/AJ/153/248/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.note;meta.mainintprimaryBibCodeBibliographic codemeta.bib.bibcodecharAuthAuthor's namemeta.bib.authorcharCatCatalog in VizieR databasemeta.dataset;meta.tablecharJ/AJ/153/248/table2Main feature parameters of the variable, comparison, and check starsStarStarmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainBmagThe B-band magnitudemagphot.mag;em.opt.BfloatVmag? The V-band magnitudemagphot.mag;em.opt.VfloatnullableB-V? The B-V color indexmagphot.color;em.opt.B;em.opt.VfloatnullableSpTSpectral typesrc.spTypechar