J/ApJ/791/10ivo://CDS.VizieR/J/ApJ/791/10doi:10.26093/cds/vizier.17910010CDSMorton T.D.Swift J.2017-10-02T19:28:53Z2017-03-27T15:18:23ZCDS support team

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

cds-question@unistra.frdwarf-starsmultiple-starssolar-system-planetsstellar-radiiWe calculate an empirical, non-parametric estimate of the shape of the period-marginalized radius distribution of planets with periods less than 150 days using the small yet well-characterized sample of cool (T_eff_< 4000 K) dwarf stars in the Kepler catalog. In particular, we present and validate a new procedure, based on weighted kernel density estimation, to reconstruct the shape of the planet radius function down to radii smaller than the completeness limit of the survey at the longest periods. Under the assumption that the period distribution of planets does not change dramatically with planet radius, we show that the occurrence of planets around these stars continues to increase to below 1 R_{sun}_, and that there is no strong evidence for a turnover in the planet radius function. In fact, we demonstrate using many iterations of simulated data that a spurious turnover may be inferred from data even when the true distribution continues to rise toward smaller radii. Finally, the sharp rise in the radius distribution below ~3 R_{sun}_ implies that a large number of planets await discovery around cool dwarfs as the sensitivities of ground-based transit surveys increase.2014ApJ...791...10Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/791/10CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/ApJ/767/95 : Improved stellar parameters of smallest KIC starsJ/ApJS/213/5 : Cool KOIs. VI. H- and K- band spectra (Muirhead+, 2014)J/ApJ/800/85 : Teff, radii and luminosities of cool dwarfs (Newton+, 2015)J/ApJS/218/26 : Parameters of planets orbiting coolest dwarfs (Swift+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/791/10https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/791/10http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/791/10https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/791/10https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/791/10http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/791/10GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/791/10/table1 (Data Used in Radius wKDE)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/791/10/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/791/10/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/791/10/table1?GETtext/xml+votable180.050000true282.2544.92111110.0055555555555555565/3743 3777 3785 6/14578 14584 14586 14588 14591 14752 14756 14757 14762 14764 14768 14770 14771 14772 14778 14781 14794 14816 14819 14824 14825 14915 14921 14930 14932 14935 14937 14939 14944 14945 14948 14950 14953 14954 14955 14958 14959 14963 14970 14971 15057 15112 15119 15126 15128 15131 15132 15134 15137 15147 15148 15149 15151 15158 15170 15171 15172https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/791/10?format=asciidefaultJ/ApJ/791/10/table1Data Used in Radius wKDEf_KOI[ab] Flag on KOI (1)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKOIKelper Object of Interest identifier (NNNN.NN)meta.id;meta.maincharRpPlanetary radius; Earth radii(6.3781x10+6m)phys.size.radiusfloatE_RpUpper 1{sigma} error in Rp(6.3781x10+6m)stat.error;stat.maxfloate_RpLower 1{sigma} error in Rp(6.3781x10+6m)stat.errorfloatetaDisDiscovery efficiency (2)meta.notefloatFPPProbability signal is a false positivestat.fit.goodnessfloatf_FPP[c] Flag on FPP (3)meta.codecharWeightWeight factor (4)stat.weightfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullable