J/A+A/568/L12ivo://CDS.VizieR/J/A+A/568/L12doi:10.26093/cds/vizier.35689012CDSNielsenM. B.GizonL.SchunkerH.SchouJ.2017-10-12T13:00:25Z2014-08-22T07:35:47ZCDS support team

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

cds-question@unistra.frdwarf-starslate-type-starsspace-observatoriesobservational-astronomyAsteroseismology offers the prospect of constraining differential rotation in Sun-like stars. Here we have identified six high signal-to-noise main-sequence Sun-like stars in the Kepler field, which all have visible signs of rotational splitting of their p-mode frequencies. For each star, we extract the rotational frequency splitting and inclination angle from separate mode sets (adjacent modes with l=2, 0, and 1) spanning the p-mode envelope. We use a Markov chain Monte Carlo method to obtain the best fit and errors associated with each parameter. We are able to make independent measurements of rotational splittings of ~8 radial orders for each star. For all six stars, the measured splittings are consistent with uniform rotation, allowing us to exclude large radial differential rotation. This work opens the possibility of constraining internal rotation of Sun-like stars.2014A&A...568L..12Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/568/L12CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)J/ApJS/211/2 : Stellar properties of Q1-16 Kepler targets (Huber+, 2014)J/ApJS/210/1 : Asteroseismic study of solar-type stars (Chaplin+, 2014)J/A+A/551/L8 : Chromospheric activity of field stars (Pace, 2013)J/PASP/124/1279 : Q3 Kepler's combined photometry (Christiansen+, 2012)J/ApJS/199/30 : Eff. temperature scale for KIC stars (Pinsonneault+, 2012)J/ApJ/749/152 : Asteroseismic analysis of 22 solar-type stars (Mathur+, 2012)J/MNRAS/423/122 : Abundances of 93 solar-type Kepler targets (Bruntt+, 2012)J/AJ/144/24 : The Kepler-INT survey (Greiss+, 2012)J/A+A/529/A89 : Kepler satellite variability study (Debosscher+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/568/L12https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/568/L12http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/568/L12https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/568/L12https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/568/L12http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/568/L12GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/568/L12/table1 (Variance weighted mean rotational splittings <{delta}{nu}>, inclination <i>, and rotation period {Omega}/{Omega}_{sun}_ for the six Sun-like stars.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/568/L12/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/568/L12/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/568/L12/table1?GETtext/xml+votable180.050000true289.145431440.04732310.0055555555555555566/14930-14932 14948 14960 15145https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/568/L12?format=asciiOpticaldefaultJ/A+A/568/L12/table1Variance weighted mean rotational splittings <{delta}{nu}>, inclination <i>, and rotation period {Omega}/{Omega}_{sun}_ for the six Sun-like stars.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFitDisplay all best-fit parameters for this starmeta.ref.urlcharKICKIC numbermeta.id;meta.mainintTeff[5669/6097] Effective temperatureKphys.temperature.effectiveinte_TeffTeff uncertaintyKstat.error;phys.temperature.effectiveintlogg[4/4.4] Surface gravitylog(cm.s**-2)phys.gravityfloate_logglogg uncertaintylog(cm.s**-2)stat.errorfloatlFit[1157/1760] lower fit frequency interval (1)uHzem.freq;stat.minintuFit[1662/2609] upper fit frequency interval (1)uHzem.freq;stat.maxintdnu[0.4/0.81] Variance weighted mean rotational splitting <{delta}{nu}> (2)uHzem.freq;src.varfloate_dnu[0.03/0.08] dnu uncertaintyuHzstat.errorfloatdvsiniVariance weighted mean {delta}{nu}siniuHzem.freq;src.varfloate_dvsinidvsini uncertaintyuHzstat.errorfloatincUnweighted mean of Inclination <i> (2)degsrc.orbital.inclinationintOmegaStellar rotation rate relative to the solar value {Omega}/{Omega}_{sun}_ (with {Omega}_{sun}_=0.424uHz)Sunem.freq;src.varfloate_OmegaOmega uncertaintystat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/A+A/568/L12/table2Best-fit parameters for six Kepler starsx_ParamUnit in which Param is expressedmeta.unitcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintParamParameter names (explained in the "Description of file" section above)meta.id;stat.paramchar4914923? Best-fit values for 4914923stat.fit.paramdoublenullable5184732? Best-fit values for 5184732stat.fit.paramdoublenullable6106415? Best-fit values for 6106415stat.fit.paramdoublenullable6116048? Best-fit values for 6116048stat.fit.paramdoublenullable6933899? Best-fit values for 6933899stat.fit.paramdoublenullable10963065? Best-fit values for 10963065stat.fit.paramdoublenullable