J/A+A/683/A158ivo://CDS.VizieR/J/A+A/683/A158doi:10.26093/cds/vizier.36830158CDSZasche P.Henzl Z.Wolf M.2024-11-29T20:01:07Z2024-03-15T08:46:22ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsorbitsvisible-astronomyWe present the discovery of six new triple stellar system candidates composed of an inner eccentric-orbit eclipsing binary with an apsidal motion. These stars were studied using new, precise TESS light curves and a long-term collection of older photometric ground-based data. These data were used for the monitoring of ETVs (eclipse timing variations) and to detect the slow apsidal movements along with additional periodic signals. The systems analysed were ASASSN-V J012214.37+643943.3 (orbital period 2.01156d, eccentricity 0.15, third body with 3.3yr period); ASASSN-V J052227.78+345257.6 (2.42673d, 0.35, 3.2yr); ASASSN-V J203158.98+410731.4 (2.53109d, 0.20, 2.7yr); ASASSN-V J230945.10+605349.3 (2.08957d, 0.18, 2.3yr); ASASSN-V J231028.27+590841.8 (2.41767d, 0.43, 4.9yr); and NSV 14698 (3.30047d, 0.147, 0.5yr). In the system ASASSNV J230945.10+605349.3, we detected a second eclipsing pair (per 2.99252d) and found adequate ETV for the pair B, proving its 2+2 bound quadruple nature. All of these detected systems deserve special attention from long-term studies for their three-body dynamics since their outer orbital periods are not too long and because some dynamical effects should be detectable during the next decades. The system NSV 14698 especially seems to be the most interesting from the dynamical point of view due to it having the shortest outer period of the systems we studied, its fast apsidal motion, and its possible orbital changes during the whole 20th century.2024A&A...683A.158Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/683/A158CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/683/A158https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/683/A158http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/683/A158https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/683/A158https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/683/A158http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/683/A158GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/683/A158/table1 (List of new eccentric triple candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/683/A158/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/683/A158/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/683/A158/table1?GETtext/xml+votable180.050000true20.5664.6620280.0055555555555555566/1304 3729 14302 14308 14316 14692https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/683/A158?format=asciiOpticaldefaultJ/A+A/683/A158/table1List of new eccentric triple candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainNameVSX target namemeta.id;meta.maincharTICTIC identification numbermeta.idlongTmagTESS magnitudemagphot.mag;em.optfloatplxGaia parallaxmaspos.parallax.trigfloate_plxGaia parallax errormasstat.error;pos.parallaxfloatInfoSpectral/temperature informationmeta.notecharr_Info[ab ] Reference for spectral type (1)meta.ref;pos.framecharJ/A+A/683/A158/minimaTime of minimarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the starmeta.id;meta.maincharHJDHeliocentric Julian Date of eclipsedtime.epochdoublee_HJDError of HJDdstat.error;time.epochdoubleObsSource/Reference/Observermeta.code;obschar