J/ApJ/812/46ivo://CDS.VizieR/J/ApJ/812/46doi:10.26093/cds/vizier.18120046CDSThompson S.E.Mullally F.Coughlin J.Christiansen J.L.Henze C.E.,Haas M.R.Burke C.J.2017-12-22T05:33:04Z2016-02-23T15:37:49ZCDS support team

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

cds-question@unistra.frsolar-system-planetsmultiple-starsWe describe a new metric that uses machine learning to determine if a periodic signal found in a photometric time series appears to be shaped like the signature of a transiting exoplanet. This metric uses dimensionality reduction and k-nearest neighbors to determine whether a given signal is sufficiently similar to known transits in the same data set. This metric is being used by the Kepler Robovetter to determine which signals should be part of the Q1-Q17 DR24 catalog of planetary candidates. The Kepler Mission reports roughly 20000 potential transiting signals with each run of its pipeline, yet only a few thousand appear to be sufficiently transit shaped to be part of the catalog. The other signals tend to be variable stars and instrumental noise. With this metric, we are able to remove more than 90% of the non-transiting signals while retaining more than 99% of the known planet candidates. When tested with injected transits, less than 1% are lost. This metric will enable the Kepler mission and future missions looking for transiting planets to rapidly and consistently find the best planetary candidates for follow-up and cataloging.2015ApJ...812...46Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/812/46CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/ApJ/810/95 : Kepler pipeline S/N studies. II. 2011 (Christiansen+, 2015)J/ApJ/809/8 : Terrestrial planet occurrence rates for KOIs (Burke+, 2015)J/ApJ/807/45 : Potentially habitable planets around M dwarfs (Dressing+, 2015)J/ApJS/217/31 : Kepler planetary candidates. VI. 4yr Q1-Q16 (Mullally+, 2015)J/ApJS/217/18 : Potential transit signals in Kepler Q1-Q17 (Seader+, 2015)J/ApJS/217/16 : Kepler planetary candidates. V. 3yr Q1-Q12 (Rowe+, 2015)J/ApJS/210/19 : Kepler planetary candidates. IV. 22 months (Burke+, 2014)J/ApJS/207/35 : Kepler pipeline signal-to-noise studies (Christiansen+, 2013)J/ApJS/204/24 : Kepler planetary candidates. III. (Batalha+, 2013)J/ApJS/199/24 : The first three quarters of Kepler mission (Tenenbaum+, 2012)J/AJ/142/160 : Kepler Mission. II. eclipsing binaries (Slawson+, 2011)J/AJ/142/112 : KIC photometric calibration (Brown+, 2011)J/ApJ/736/19 : Kepler planetary candidates. II. (Borucki+, 2011)J/AJ/141/83 : Eclipsing binaries in Kepler first data release (Prsa+, 2011)J/ApJ/728/117 : Kepler planetary candidates. I. (Borucki+, 2011)http://exoplanetarchive.ipac.caltech.edu/ : NASA exoplanet archivehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/812/46https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/812/46http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/812/46https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/812/46https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/812/46http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/812/46GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/812/46/table1 (Locality Preserving Projections (LPP) transit metric for DR24 (Seader+, 2015, J/ApJS/217/18) Threshold Crossing Events (TCEs))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/812/46/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/812/46/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/812/46/table1?GETtext/xml+votable180.050000true291.137636.57738110.0055555555555555564/922 923 933 934 935 944 945 946 5/3645 3646 3647 3683 3704 3706 3729 3730 3731 3760 3788 3789 3792 3793 6/14559 14567 14573 14575 14577 14578 14579 14730 14731 14738 14744 14746 14747 14749 14750 14751 14792 14794 14795 14822 14828 14830 14914 14915 15044 15045 15057 15059 15060 15061 15062 15160 15161 15176 15178 15200 15202 15232 15233https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/812/46?format=asciidefaultJ/ApJ/812/46/table1Locality Preserving Projections (LPP) transit metric for DR24 (Seader+, 2015, J/ApJS/217/18) Threshold Crossing Events (TCEs)KICKIC number (1)meta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPlPlanet number (1)meta.idintPerTCE period (2)dtime.perioddoubleDurTCE transit duration (2)htime.durationfloatMESTCE multiple-event statisticstat.fit.paramdoubleDVmedLPP transit metric calculated using the DV-median detrended light curvestat.fit.paramdoublepLSLPP transit metric calculated using the penalized-LS detrended light curvestat.fit.paramdoubleLabelLabel (3)stat.paramcharS15Display data from Kepler Q1-Q17 (Seader+, 2015, J/ApJS/217/18)meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions of KIC stars from KIC catalog (V/133) (right ascension part)degpos.eq.ra;meta.main_DEPositions of KIC stars from KIC catalog (V/133) (declination part)degpos.eq.dec;meta.main