J/ApJ/921/167ivo://CDS.VizieR/J/ApJ/921/167doi:10.26093/cds/vizier.19210167CDSRampalli R.Agueros M.A.Curtis J.L.Douglas S.T.Nunez A.,Cargile P.A.Covey K.R.Gosnell N.M.Kraus A.L.Law N.M.Mann A.W.2024-06-07T14:13:43Z2023-03-31T09:03:47ZCDS support team

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

cds-question@unistra.fropen-star-clusterslate-type-starsphotometryvisible-astronomyinfrared-sourcesradial-velocityproper-motionsstellar-massesWe use three campaigns of K2 observations to complete the census of rotation in low-mass members of the benchmark, ~=670Myr old open cluster Praesepe. We measure new rotation periods (Prot) for 220 ~<1.3M_{sun}_ Praesepe members and recovery periods for 97% (793/812) of the stars with a Prot in the literature. Of the 19 stars for which we do not recover a Prot, 17 were not observed by K2. As K2's three Praesepe campaigns took place over the course of 3yr, we test the stability of our measured Prot for stars observed in more than one campaign. We measure Prot consistent to within 10% for >95% of the 331 likely single stars with >=2 high-quality observations; the median difference in Prot is 0.3%, with a standard deviation of 2%. Nearly all of the exceptions are stars with discrepant Prot measurements in Campaign 18, K2's last, which was significantly shorter than the earlier two (~=50 days rather than ~=75 days). This suggests that, despite the evident morphological evolution we observe in the light curves of 38% of the stars, Prot measurements for low-mass stars in Praesepe are stable on timescales of several years. A Prot can therefore be taken to be representative even if measured only once.2021ApJ...921..167Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/921/167CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)I/345 : Gaia DR2 (Gaia Collaboration, 2018)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)J/AJ/134/2340 : Membership of Praesepe & Coma Berenices (Kraus+, 2007)J/MNRAS/413/2218 : Stellar rotation in Hyades and Praesepe (Delorme+, 2011)J/MNRAS/426/3419 : UKIDSS GCS Praesepe members (Boudreault+, 2012)J/MNRAS/432/1203 : Rotation periods of M-dwarf stars (McQuillan+, 2013)J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)J/A+A/560/A4 : Rotation periods of active Kepler stars (Reinhold+, 2013)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)J/MNRAS/442/2081 : Praesepe members light curves (Kovacs+, 2014)J/ApJ/795/161 : Activity & rotation in Praesepe & the Hyades (Douglas+, 2014)J/ApJ/804/64 : Empirical and model parameters of 183 M dwarfs (Mann+, 2015)J/A+A/583/A65 : Active Kepler stars differential rotation (Reinhold+, 2015)J/ApJ/822/47 : K2 rotation periods for 65 Hyades members (Douglas+, 2016)J/ApJ/822/81 : PTF stellar Prot for Pleiades members (Covey+, 2016)J/AJ/152/113 : Pleiades members with K2 LCs. I. Periods (Rebull+, 2016)J/AJ/152/114 : Pleiades members with K2 light curves. II. (Rebull+, 2016)J/AJ/152/115 : Pleiades members with K2 light curves. III. (Stauffer+, 2016)J/ApJ/839/92 : Praesepe members with K2 light curve data (Rebull+, 2017)J/ApJ/842/83 : Praesepe members Prot from K2 LCs (Douglas+, 2017)J/MNRAS/474/2094 : Inferring probabilistic stellar Prot (Angus+, 2018)J/A+A/616/A10 : Open clusters GaiaDR2 HR diagrams (Gaia Collaboration, 2018)J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)J/A+A/621/L3 : Hyades tidal tails with Gaia DR2 (Meingast+, 2019)J/A+A/627/A4 : Praesepe (NGC 2632) and its tidal tails (Roeser+, 2019)J/ApJ/879/100 : K2 rot. periods for Hyades & Praesepe members (Douglas+, 2019)J/A+A/628/A66 : alpha Persei, Pleiades and Praesepe clusters (Lodieu+, 2019)J/AJ/158/77 : Members of the Pisces-Eridanus stream (Curtis+, 2019)J/A+A/635/A43 : Stellar rotation periods from K2 C0-18 (Reinhold+, 2020)J/ApJ/904/140 : Ruprecht 147 members & Prot for 5 other cl. (Curtis+, 2020)J/A+A/649/A3 : Gaia EDR3 photometric passbands (Riello+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/921/167https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/921/167http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/921/167https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/921/167https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/921/167http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/921/167GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/921/167/table4 (Rotators in Praesepe)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/921/167/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/921/167/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/921/167/table4?GETtext/xml+votable180.050000true123.2762514.456530.005555555555555556Cone search capability for table J/ApJ/921/167/table3 (Lomb-Scargle outputs for the Praesepe rotators)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/921/167/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/921/167/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/921/167/table3?GETtext/xml+votable180.050000true123.2762514.456530.0055555555555555564/293 5/1170-1171 1176-1177 1180-1181 1218 1224 6/4274-4275 4278 4282 4287 4328 4330-4331 4333-4335 4338 4340 4344 4350 4489 4491 4495 4520 4522 4526 4625 4627 4630-4632 4634-4637 4639 4645 4658 4660-4662 4668 4672-4673 4675 4677-4679 4713-4714 4716-4717 4719 4728-4730 4732-4734 4757 4805 4816-4817 4864 4866-4867 4869 4879 4882-4883 4900 4904 49078.650015785639275e-20 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/921/167?format=asciiOpticalInfrareddefaultJ/ApJ/921/167/table4Rotators in PraesepepmDE[-23.5/10.8]? Gaia EDR3 proper motion along DEmaspos.pm;pos.eq.decfloatnullablee_pmRA[0.01/10]? Uncertainty in pmRAmasstat.error;pos.pm;pos.eq.rafloatnullablee_pmDE[0.01/10]? Uncertainty in pmDEmasstat.error;pos.pm;pos.eq.decfloatnullableplx[1.56/11.2]? Gaia EDR3 parallaxmaspos.parallax.trigfloatnullablee_plx[0.01/1.5]? Uncertainty in plxmasstat.error;pos.parallaxfloatnullableDist[89/641]? Bailer-Jones+ 2021 (I/352) distancepcpos.distancefloatnullableepsi[0/69.6] Astrometric excess noisestat.fit.paramfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimbadSimbad column added by the CDSmeta.ref.urlcharLSDisplay Lomb-Scargle outputs (link to Table 3)meta.ref.urlcharEPIC[211354787/251381414] K2 EPIC identifiermeta.id;meta.mainlongprimaryGaiaGaia EDR3 identifiermeta.id.crossOName2MASS or Gaia DR2 identifiermeta.id.crosscharRAJ2000[123.27/140.8] Gaia EDR3 right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[10.9/25.1] Gaia EDR3 Declination (J2000)degpos.eq.dec;meta.mainpmRA[-53.2/-10.8]? Gaia EDR3 proper motion along RAmaspos.pm;pos.eq.rafloatnullablee_Dist[0.03/29]? Uncertainty in Distpcstat.errorfloatnullablesepsi[0/1.8e+6]? Significance of astrometric excess noisestat.fit.paramdoublenullableRUWE[0.7/23]? Re-normalised Unit-Weight Errorstat.errorfloatnullableBp-Rp[0.5/3.7]? Gaia EDR3 Blue-Red passband colormagphot.color;em.opt.B;em.opt.RfloatnullableGmag[8.6/20.4] Gaia EDR3 G band magnitudemagphot.mag;em.optfloatKsmag[7.6/16.6] 2MASS Ks band magnitudemagphot.mag;em.IR.KfloatRVel[-8.4/56.1]? Gaia EDR3 radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RVel[0.16/19]? Uncertainty in RVelkm/sstat.error;spect.dopplerVelocfloatnullableFlag[0/1] Missing Gaia EDR3 measurement flagmeta.code.errorintdPM[0.05/27.6]? Proper motion deviation from clustermas/yrpos.pm;arith.difffloatnullabledbprp[-4.8/3.2]? Photometric excess in M_G_ vs G-RPmagphot.color.excessfloatnullabledgrp[-48.6/7.1]? Photometric excess in M_G_ vs BP-RPmagphot.color.excessfloatnullabledRV[0/43.4]? Radial velocity deviation from clusterkm/sstat.stdev;spect.dopplerVelocfloatnullablemPer[0/1]? Multiple periods found in LC? (1=yes)meta.noteintnullableaBin[0/1] Astrometric binary flag; dPM>=2.5mas (1=yes)meta.codeintpBin[0/1] Photometric binary flag; dbprp or dgrp >=0.375 (1=yes)meta.codeintlBin[0/1] Literature binary flag (1=yes)meta.codeintWBin[0/1] Wide binary flag; RUWE {>=}1.2 (1=yes)meta.codeintBin[0/1] Binary flag (1=yes)meta.codeintTail[0/1] Member of tidal tails? (1=yes)meta.codeintK2[0/1] Observed by K2? (1=yes)meta.codeintTeff[3002/6620]? Effective temperatureKphys.temperature.effectiveintnullableMass[0.1/1.6]? MasssolMassphys.massfloatnullableSpTSpectral typesrc.spTypecharProt[0.13/40.2] This work's rotation perioddtime.periodfloatQual[0/1]? High-quality flag for LC(s) (0=questionable detections, 65 occurrences)meta.code.errorintnullablepProt[0.13/38.1]? Previous Prot for startime.periodfloatnullableEvol[0/1]? LC evolution found in LC(s) (1=yes)meta.codeintnullableJ/ApJ/921/167/table3Lomb-Scargle outputs for the Praesepe rotatorsEPIC[211354787/251381414] K2 EPIC identifiermeta.id;meta.mainlongGaiaGaia EDR3 identifiermeta.id.crossrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[123.27/140.8] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[10.9/25.1] Declination (J2000)degpos.eq.dec;meta.mainProt[0.13/40.2] Adopted rotation perioddtime.periodfloatC5Prot[0.17/40.2]? K2 C5 campaign primary measured Protdtime.periodfloatnullableC5PLS[0.01/0.98]? K2 C5 campaign LS power (1)stat.fit.paramfloatnullableC5SProt[-9999/39]? K2 C5 campaign secondary measured Prot (2)dtime.perioddoublenullableC5SPLS[-9999/0.5]? K2 C5 campaign power for C5SProt (2)stat.fit.paramdoublenullableC5Clean[0/1]? K2 C5 campaign light curve clean detection (1=yes)meta.codefloatnullableC5Q[0/3]? K2 C5 campaign assigned quality flagmeta.code.qualfloatnullableC5Rvar[0/0.4]? K2 C5 campaign R_var_ value (3)src.var.amplitudefloatnullableC5thresh[0.007/0.011]? K2 C5 campaign minimum LS power for Prot detectionstat.fit.paramfloatnullableC5SNR[6/2129]? K2 C5 campaign lightcurve SNRstat.snrfloatnullableC16Prot[-9999/38.5]? K2 C16 campaign primary measured Prot (2)dtime.perioddoublenullableC16PLS[-9999/0.97]? K2 C16 campaign LS power (2)stat.fit.paramdoublenullableC16SProt[-9999/39]? K2 C16 campaign secondary measured Prot (2)dtime.perioddoublenullableC16SPLS[-9999/0.42]? K2 C16 campaign power for C5SProt (2)stat.fit.paramdoublenullableC16Clean[0/1]? K2 C16 campaign light curve clean detection (1=yes)meta.codefloatnullableC16Q[0/3]? K2 C16 campaign assigned quality flagmeta.code.qualfloatnullableC16Rvar[0/0.3]? K2 C16 campaign R_var_ value (3)src.var.amplitudefloatnullableC16thresh[0.007/0.01]? K2 C16 campaign minimum LS power for Prot detectionstat.fit.paramfloatnullableC16SNR[8/3762]? K2 C16 campaign lightcurve SNRstat.snrfloatnullableC18Prot[-9999/30.4]? K2 C18 campaign primary measured Prot (2)dtime.perioddoublenullableC18PLS[-9999/0.98]? K2 C18 campaign LS power (2)stat.fit.paramdoublenullableC18SProt[-9999/24.6]? K2 C18 campaign secondary measured Prot (2)dtime.perioddoublenullableC18SPLS[-9999/0.5]? K2 C18 campaign power for C5SProt (2)stat.fit.paramdoublenullableC18Clean[0/1]? K2 C18 campaign light curve clean detection (1=yes)meta.codefloatnullableC18Q[0/3]? K2 C18 campaign assigned quality flagmeta.code.qualfloatnullableC18Rvar[0/0.5] K2 C18 campaign R_var_ value (3)src.var.amplitudefloatC18thresh[0.008/0.015]? K2 C18 campaign minimum LS power for Prot detectionstat.fit.paramfloatnullableC18SNR[7/2576]? K2 C18 campaign lightcurve SNRstat.snrfloatnullableClean[0/1] High-quality flag, Q=0, for LC(s) (1=yes)meta.codeintMult[0/1] Multiple periods found in LC(s) (1=yes)meta.codeintNb[0/1] Possible neighboring star in aperture contamination (1=yes)meta.codeintHarm[0/1] Strong harmonics found within and/or LC(s) (1=yes)meta.codeintEvol[0/1] LC evolution found in LC(s) (1=yes)meta.codeintpProt[0.13/38.1]? Previous Prot for startime.periodfloatnullableBin[0/1] Binary flagmeta.codeintOName2MASS or Gaia DR2 identifiermeta.id.crosschar