J/AJ/143/137ivo://CDS.VizieR/J/AJ/143/137doi:10.26093/cds/vizier.51430137CDSGies D.R.Williams S.J.Matson R.A.Guo Z.Thomas S.M.Orosz J.A.,Peters G.J.2017-09-19T14:23:57Z2013-07-17T09:51:27ZCDS support team

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

cds-question@unistra.frvariable-starseclipsing-binary-starsWe present the first results of a Kepler survey of 41 eclipsing binaries that we undertook to search for third star companions. Such tertiaries will periodically alter the eclipse timings through light travel time and dynamical effects. We discuss the prevalence of starspots and pulsation among these binaries and how these phenomena influence the eclipse times. There is no evidence of short-period companions (P<700days) among this sample, but we do find evidence for long-term timing variations in 14 targets (34%). We argue that this finding is consistent with the presence of tertiary companions among a significant fraction of the targets, especially if many have orbits measured in decades. This result supports the idea that the formation of close binaries involves the deposition of angular momentum into the orbital motion of a third star.2012AJ....143..137Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/143/137CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2010)V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)V/118 : Catalog of eclipsing binaries parameters (Perevozkina+, 1999)J/other/Nat/481.475 : RVs of Kepler-34b & Kepler-35b (Welsh+, 2012)J/A+A/529/A89 : Kepler satellite variability study (Debosscher+, 2011)J/A+A/534/A125 : Variability of A- and F-stars from Kepler (Uytterhoeven+ 2011)J/AJ/142/160 : Kepler Mission. II. 2165 eclipsing binaries (Slawson+, 2011)J/AJ/141/83 : Eclipsing binaries in Kepler first data release (Prsa+, 2011)J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)J/MNRAS/405/1930 : Period changes of EA, EB and EW-types binaries (Liao+, 2010J/AcA/59/33 : ASAS. Variable stars catalog in Kepler field. (Pigulski+, 2009)J/AJ/135/850 : Properties of eclipsing binaries found in TrES (Devor+, 2008)J/A+A/450/681 : Companions to close spectroscopic binaries (Tokovinin+, 2006)J/AJ/131/2986 : Multiplicity of contact binaries (Pribulla+, 2006)J/AcA/54/207 : Ephemerids of eclipsing binaries (Kreiner, 2004)J/AJ/128/1761 : HATNET variability survey (Hartman+, 2004)http://keplerEBs.villanova.edu/ : Online Kepler eclipsing binary cataloghttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/143/137https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/143/137http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/143/137https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/143/137https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/143/137http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/143/137GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/143/137/table1 (Eclipsing binary properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/143/137/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/143/137/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/143/137/table1?GETtext/xml+votable180.050000true291.9903337.672748890.0055555555555555566/14575 14578 14582 14583 14586 14591 14734 14744 14751 14752 14753 14754 14763 14780 14781 14782 14818 14819 14824 14825 14918 14923 14929 14947 14975 15109 15112 15114 15117 15120 15121 15126 15128 15130 15172https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/143/137?format=asciiOpticaldefaultJ/AJ/143/137/table1Eclipsing binary propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKepler Input Catalog number (Cat. V/133)meta.id;meta.mainintprimaryn_KIC[PS] Type of eclipse (P=primary or S=secondary)meta.notecharIerrAverage timing error (internal error)sstat.errorfloatEerrStandard deviation of the O-C times (external error)sstat.errorfloatT0Epoch (BJD-2400000) of the mid-eclipse that defines the zero-point for the O-C residualdtime.epochdoublee_T0Uncertainty in T (in the last digit quoted)1e-06dstat.errorintPPeriod (that yields a zero slope in O-C diagram)dtime.perioddoublee_PUncertainty in P (in the last digit quoted)1e-09dstat.errorintPvarRelative period variation rate Pdot/P (derived from a weighted, quadratic fit of the observed minus calculated eclipse times trend)1e-06yr**-1meta.notefloate_PvarUncertainty in PVar (in the last digit quoted)1e-09yr**-1stat.errorintComComment (about the character of the O-C diagram) (1)meta.notecharOcatCross-match with ASAS (Cat. J/AcA/59/33) and HATNET (Cat. J/AJ/128/1761) surveys within 1.5"meta.ref.urlintnullableKepDisplay the data from early Kepler results (Cat. J/AJ/141/83, obsoleted by Cat. J/AJ/142/160)meta.numberintnullableSimbadSimbad column added by the CDSmeta.refchar_RAPositions from KIC catalog (V/133) (right ascension part)degpos.eq.ra;meta.main_DEPositions from KIC catalog (V/133) (declination part)degpos.eq.dec;meta.mainPer? Adopted perioddtime.perioddoublenullableJ/AJ/143/137/table2O-C eclipse timing measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKepler Input Catalog number (Cat. V/133)meta.id;meta.mainintTEEphemeris time of eclipse T_E_; BJD-2400000dtime.epochdoubleType[1/2] Eclipse type (1=primary, 2=secondary)meta.codeintO-CObserved minus calculated time of eclipsesstat.fit.residualfloate_O-CUncertainty in O-Csstat.error;stat.fit.omcfloat