15000 ellipsoidal binary candidates in TESS J/MNRAS/522/29 ivo://CDS.VizieR/J/MNRAS/522/29 doi:10.26093/cds/vizier.75220029 CDS Green M.J. Maoz D. Mazeh T. Faigler S. Shahaf S. Gomel R.,El-Badry K. Rix H.-W. 2024-08-22T20:17:13Z 2023-06-28T06:56:51Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr orbits visible-astronomy We present a homogeneously selected sample of 15779 candidate binary systems with main sequence primary stars and orbital periods shorter than 5d. The targets were selected from TESS full-frame image light curves on the basis of their tidally induced ellipsoidal modulation. Spectroscopic follow-up suggests a sample purity of 83+/-13 per cent. Injection-recovery tests allow us to estimate our overall completeness as 28+/-3 per cent with P_orb_<3d and to quantify our selection effects. 39+/-4 per cent of our sample are contact binary systems, and we disentangle the period distributions of the contact and detached binaries. We derive the orbital period distribution of the main-sequence binary population at short orbital periods, finding a distribution continuous with the lognormal distribution previously found for solar-type stars at longer periods, but with a significant steepening at P_orb_<~3d, and a pile-up of contact binaries at P_orb_~=0.4d. Companions in the period range of 1-5 dare an order of magnitude more frequent around stars hotter than ~6250K (the Kraft break) when compared to cooler stars, suggesting that magnetic braking shortens the lifetime of cooler binary systems. However, the period distribution in the range 1-10d is independent of temperature. We detect resolved tertiary companions to 9.0+/-0.2 per cent of our binaries with a median separation of 3200au. The frequency of tertiary companions rises to 29+/-5 per cent among the systems with the shortest ellipsoidal periods. This large binary sample with quantified selection effects will be a powerful resource for future studies of detached and contact binary systems with P_orb_<5d. 2023MNRAS.522...29G https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/522/29 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/522/29 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/522/29 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/522/29 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/522/29 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/522/29 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/522/29 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/522/29/table2 (Results for all TESS input targets) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/522/29/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/522/29/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/522/29/table2? GET text/xml+votable 180.0 50000 true 218.75023347 -28.87050208 0.005555555555555556 Cone search capability for table J/MNRAS/522/29/table3 (Selected ellipsoidal candidates) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/522/29/table3? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/522/29/table3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/522/29/table3? 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Optical default J/MNRAS/522/29/table2 Results for all TESS input targets recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int TIC TIC identification number meta.id;meta.main RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 Declination (J2000) deg pos.eq.dec;meta.main indexed Score [0/1] Assigned score meta.code double a1c Measured amplitude a1c (1) src.var.amplitude double e_a1c rms uncertainty on a1c (1) stat.error double a2c Measured amplitude a2c (1) src.var.amplitude double e_a2c rms uncertainty on a2c (1) stat.error double a3c Measured amplitude a3c (1) src.var.amplitude double e_a3c rms uncertainty on a3c (1) stat.error double a1s Measured amplitude a1s (1) src.var.amplitude double e_a1s rms uncertainty on a1s (1) stat.error double a3s Measured amplitude a3s (1) src.var.amplitude double e_a3s rms uncertainty on a3s (1) stat.error double Porb Orbital period d time.period double chisq ? chi^2^ of the best-fitting model stat.fit.chi2 double nullable
J/MNRAS/522/29/table3 Selected ellipsoidal candidates recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int T2 Display the data in the two tables meta.ref.url char TIC TIC identification number meta.id;meta.main long RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 Declination (J2000) deg pos.eq.dec;meta.main indexed Score [0/1] Assigned score meta.note double Teff Effective temperature K phys.temperature.effective int Tmag TESS magnitude mag phot.mag;em.opt float Porb Orbital period d time.period double e_Porb rms uncertainty on Porb d stat.error double T0 Time of reference epoch (JD) d time.epoch double e_T0 rms uncertainty on T0 (JD) d stat.error double Pcb [0/1]? Probability of contact binary stat.fit.goodness double nullable