J/A+A/560/A13ivo://CDS.VizieR/J/A+A/560/A13doi:10.26093/cds/vizier.35600013CDSMoraux E.Artemenko S.Bouvier J.Irwin J.Ibrahimov M.Magakian T.,Grankin K.Nikogossian E.Cardoso C.Hodgkin S.Aigrain S.,Movsessian T.A.2014-06-16T21:52:47Z2013-11-28T09:11:35ZCDS support team

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

cds-question@unistra.fropen-star-clustersphotometryWe aim at constraining the angular momentum evolution of low mass stars by measuring their rotation rates when they begin to evolve freely towards the ZAMS, i.e. after the disk accretion phase has stopped. We conducted a multi-site photometric monitoring of the young open cluster h Persei that has an age of ~13Myr. The observations were done in the I-band using 4 different telescopes and the variability study is sensitive to periods from less than 0.2 day to 20-days. Rotation periods are derived for 586 candidate cluster members over the mass range 0.4<=M/M_{sun}_<=1.4. The rotation period distribution indicates a slightly higher fraction of fast rotators for the lower mass objects, although the lower and upper envelopes of the rotation period distribution, located respectively at ~0.2-0.3d and ~10d, are remarkably flat over the whole mass range. We combine this period distribution with previous results obtained in younger and older clusters to model the angular momentum evolution of low mass stars during the PMS. The h Per cluster provides the first statistically robust estimate of the rotational period distribution of solar-type and lower mass stars at the end of the PMS accretion phase (>=10Myr). The results are consistent with models that assume significant core-envelope decoupling during the angular momentum evolution to the ZAMS.2013A&A...560A..13Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/560/A13CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/659/599 : IRAC and JHKs photometry of h and chi Persei (Currie+, 2007)J/AJ/137/3210 : Chandra observations of h Persei (Currie+, 2009)J/ApJS/186/191 : VI photometry and spectroscopy in h+{chi} Per (Currie+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/560/A13https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/560/A13http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/560/A13https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/560/A13https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/560/A13http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/560/A13GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/560/A13/table2 (Period and photometric parameter for the 586 periodic objects in h Per)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/560/A13/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/560/A13/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/560/A13/table2?GETtext/xml+votable180.050000true34.834041757.19761110.0055555555555555566/3256-32581.1195963761719405e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/560/A13?format=asciiOpticaldefaultJ/A+A/560/A13/table2Period and photometric parameter for the 586 periodic objects in h PerVmag? V magnitudemagphot.mag;em.opt.VfloatnullablePerPeriod observeddtime.periodfloatSeq[1/586] hPer sequential numbermeta.recordintprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.maini'mag[15.6/20.7] CFHT/Megacam i'magnitudemagphot.mag;em.opt.IfloatPowerPeriodogram peak powerstat.fit.paramfloatl_FAPLimit flag on FAPmeta.code.errorcharFAP[0/0.05] False alarm probabilitystat.fit.goodnessfloatAmpAmplitudemagphot.magfloatMassEstimated masssolMassphys.massfloatbin[1/2] Binary flag (1)meta.codeintIcmag? Ic magnitudemagphot.mag;em.opt.IfloatnullableJmagCFHT/WIRCAM J magnitudemagphot.mag;em.IR.JfloatHmagCFHT/WIRCAM H magnitudemagphot.mag;em.IR.HfloatKmagCFHT/WIRCAM K magnitudemagphot.mag;em.IR.KfloatMmb[0/3]? Membership flag, 0=non-member (2)meta.code.errorintnullableXH[X Ha] Detected in X-rays (X) and/or H{alpha} (Ha)meta.codechar