J/ApJ/871/174ivo://CDS.VizieR/J/ApJ/871/174doi:10.26093/cds/vizier.18710174CDSSimonian G.V.A.Pinsonneault M.H.Terndrup D.M.2020-08-20T12:44:12Z2020-03-23T09:15:48ZCDS support team

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

cds-question@unistra.frmetallicityinfrared-photometryabsolute-magnitudelate-type-starsmultiple-starsTens of thousands of rotation periods have been measured in the Kepler fields, including a substantial fraction of rapid rotators. We use Gaia parallaxes to distinguish photometric binaries (PBs) from single stars on the unevolved lower main sequence, and compare their distribution of rotation properties to those of single stars both with and without Apache Point Observatory Galactic Evolution Experiment (APOGEE) spectroscopic characterization. We find that 59% of stars with 1.5day<P<7day lie 0.3mag above the main sequence, compared with 28% of the full rotation sample. The fraction of stars in the same period range is 1.7{+/-}0.1% of the total sample analyzed for rotation periods. Both the PB fraction and the fraction of rapid rotators are consistent with a population of non-eclipsing short-period binaries inferred from Kepler eclipsing binary data after correcting for inclination. This suggests that the rapid rotators are dominated by tidally synchronized binaries rather than single stars obeying traditional angular momentum evolution. We caution against interpreting rapid rotation in the Kepler field as a signature of youth. Following up on this new sample of 217 candidate tidally synchronized binaries will help further understand tidal processes in stars.2019ApJ...871..174Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/871/174CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler, 2009)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+A/450/681 : Companions to close spectroscopic binaries (Tokovinin+,2006)J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)J/A+A/497/497 : Physical parameters from JHK flux (Gonzalez-Hernandez+,2009)J/ApJ/695/679 : Stellar rotation in M35 (Meibom+, 2009)J/MNRAS/402/1380 : Rotation velocities in Pleiades & {alpha}Per (Jackson+,2010)J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)J/AJ/142/112 : KIC photometric calibration (Brown+, 2011)J/AJ/141/83 : Kepler Mission. I. Eclipsing binaries in DR1 (Prsa+, 2011)J/AJ/142/160 : Kepler Mission. II. Eclipsing binaries DR2 (Slawson+, 2011)J/ApJ/747/51 : Lagoon Nebula stars. I. Rotation periods (Henderson+, 2012)J/ApJS/199/30 : Effective temperatures for KIC stars (Pinsonneault+,2012)J/ApJ/767/95 : Improved parameters smallest KIC stars (Dressing+, 2013)J/MNRAS/432/1203 : Rotation periods of M-dwarf stars (McQuillan+, 2013)J/A+A/557/L10 : Rotation periods of 12000 Kepler stars (Nielsen+, 2013)J/A+A/560/A4 : Rotation periods of active Kepler stars (Reinhold+, 2013)J/ApJ/776/67 : Rotational tracks (van Saders+, 2013)J/A+A/572/A34 : Pulsating solar-like stars in Kepler (Garcia+, 2014)J/ApJS/211/2 : Revised stellar properties of Q1-16 Kepler (Huber+, 2014)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)J/AJ/150/97 : Radial velocities in M67. I. (Geller+, 2015)J/AJ/151/144 : ASPCAP weights of 15 APOGEE chemical elements (Garcia+,2016)J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016)J/ApJ/824/15 : Orbital circulariza. Kepler eclipsing bin (Van Eylen+, 2016)J/ApJ/844/102 : KIC star parallaxes asteroseismology vs Gaia (Huber+,2017)J/AJ/154/250 : Kepler EB classifications and rotation periods (Lurie+,2017)J/ApJS/229/30 : Revised stellar properties Q1-17 Kepler (Mathur+, 2017)J/AJ/154/107 : CKS. I. 1305 stars (Petigura+, 2017)J/ApJ/839/92 : Praesepe members with K2 light curve data (Rebull+, 2017)J/ApJS/233/23 : APOKASC catalog of KIC dwarfs & subgiants (Serenelli+, 2017)J/ApJ/866/99 : KIC stars & planets radii using Gaia DR2 (Berger+, 2018)J/ApJS/239/32 : APOKASC-2 catalog Kepler evolved stars (Pinsonneault+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/871/174https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/871/174http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/871/174https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/871/174https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/871/174http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/871/174GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/871/174/table1 (Kepler rapid rotators)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/871/174/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/871/174/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/871/174/table1?GETtext/xml+votable180.050000true290.863583637.12602030.005555555555555556Cone search capability for table J/ApJ/871/174/table2 (Kepler synchronization follow-up targets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/871/174/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/871/174/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/871/174/table2?GETtext/xml+votable180.050000true291.842818936.95557920.0055555555555555564/922 923 933 935 944 5/3645 3646 3647 3683 3704 3706 3729 3730 3736 3738 3739 3781 3782 3784 3785 3792 6/14573 14575 14577 14578 14579 14730 14731 14744 14746 14749 14750 14751 14792 14794 14822 14828 14830 14914 14915 14924 14925 14926 14948 14949 14950 15041 15043 15044 15045 15057 15059 15060 15061 15120 15121 15122 15132 15134 15135 15145 15146 15148 15149 15153 15154 15156 15158 15159 15160 15172 15173 15174 15176 15178 15200 15202 152328.650015785639275e-20 9.710690472292815e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/871/174?format=asciiInfrareddefaultJ/ApJ/871/174/table1Kepler rapid rotatorsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKIC[1296787/12783364] Kepler Input Catalog ID for the starmeta.id;meta.mainint2MASSAPOGEE identifier (HHMMSSss+DDMMSSs; J2000)meta.idcharTeff[4047/5249] Effective temperature from Pinsonneault+ 2012, J/ApJS/199/30Kphys.temperature.effectiveintKsmag[8.2/14.4] 2MASS Ks-band apparent magnitudemagphot.mag;em.IR.KfloatKMag[2.6/6.7] Absolute 2MASS K-band magnitude derived from Gaia parallaxesmagphot.mag;em.IR.KfloatdK[-1.3/2.2] Vertical displacement above isochrone (1)magphot.mag;arith.difffloatProt[1.5/11] Rotational period from McQuillan+ 2014, J/ApJS/211/24dtime.periodfloat[Fe/H][-0.6/0.25]? APOGEE iron abundancephys.abund.FefloatnullableKCatDisplay data from the KIC catalog (V/133) and McQuillan+, 2014, J/ApJS/211/24 and Pinsonneault+, 2012, J/ApJS/199/30meta.ref.urlcharSloanDisplay the online SDSS data for the nearest object if anymeta.ref.urlchar2MDisplay the 2MASS data (Cutri+ 2003, II/246) within 3"meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.mainJ/ApJ/871/174/table2Kepler synchronization follow-up targetsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKIC[1296787/12783364] Kepler Input Catalog ID for the starmeta.id;meta.mainint2MASSAPOGEE identifier (HHMMSSss+DDMMSSs; J2000)meta.idcharTeff[4047/5249] Effective temperature from Pinsonneault+ 2012, J/ApJS/199/30Kphys.temperature.effectiveintKsmag[8.2/14.4] 2MASS Ks-band apparent magnitudemagphot.mag;em.IR.KfloatKMag[2.6/6.7] Absolute 2MASS K-band magnitude derived from Gaia parallaxesmagphot.mag;em.IR.KfloatdK[-1.3/2.2] Vertical displacement above isochrone (1)magphot.mag;arith.difffloatProt[1.5/11] Rotational period from McQuillan+ 2014, J/ApJS/211/24dtime.periodfloat[Fe/H][-0.6/0.25]? APOGEE iron abundancephys.abund.FefloatnullableKCatDisplay data from the KIC catalog (V/133) and McQuillan+, 2014, J/ApJS/211/24 and Pinsonneault+, 2012, J/ApJS/199/30meta.ref.urlcharSloanDisplay the online SDSS data for the nearest object if anymeta.ref.urlchar2MDisplay the 2MASS data (Cutri+ 2003, II/246) within 3"meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.main