J/ApJS/222/19ivo://CDS.VizieR/J/ApJS/222/19doi:10.26093/cds/vizier.22220019CDSKim B.An D.Stauffer J.R.Lee Y.S.Terndrup D.M.Johnson J.A.2019-05-08T15:06:08Z2016-11-14T15:01:09ZCDS support team

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

cds-question@unistra.frmetallicityline-intensitiesspectroscopyvisible-astronomyWide-band photometryThe tension between the Hipparcos parallax of the Pleiades and other independent distance estimates continues even after the new reduction of the Hipparcos astrometric data and the development of a new geometric distance measurement for the cluster. A short Pleiades distance from the Hipparcos parallax predicts a number of stars in the solar neighborhood that are sub-luminous at a given photospheric abundance. We test this hypothesis using the spectroscopic abundances for a subset of stars in the Hipparcos catalog, which occupy the same region as the Pleiades in the color-magnitude diagram. We derive stellar parameters for 170 nearby G- and K-type field dwarfs in the Hipparcos catalog based on high-resolution spectra obtained using KPNO 4m echelle spectrograph. Our analysis shows that, when the Hipparcos parallaxes are adopted, most of our sample stars follow empirical color-magnitude relations. A small fraction of stars are too faint compared to main-sequence fitting relations by {Delta}M_V_>~0.3mag, but the differences are marginal at a 2{sigma} level, partly due to relatively large parallax errors. On the other hand, we find that the photometric distances of stars showing signatures of youth as determined from lithium absorption line strengths and R'_HK_ chromospheric activity indices are consistent with the Hipparcos parallaxes. Our result is contradictory to a suggestion that the Pleiades distance from main-sequence fitting is significantly altered by stellar activity and/or the young age of its stars, and provides an additional supporting evidence for the long-distance scale of the Pleiades.2016ApJS..222...19Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/222/19CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sb9 : SB9: 9th Catalog of Spectroscopic Binary Orbits (Pourbaix+, 2004-2014)I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/259 : The Tycho-2 Catalogue (Hog+ 2000)I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)J/AJ/148/30 : BVI photometry of 350 Pleiades stars (Kamai+, 2014)J/A+A/562/A71 : Abundances of solar neighborhood dwarfs (Bensby+, 2014)J/A+A/551/L8 : Chromospheric activity of field stars (Pace, 2013)J/ApJ/757/161 : Spectroscopy of 56 exoplanet host stars (Torres+, 2012)J/A+A/512/A54 : Teff and Fbol from Infrared Flux Method (Casagrande+, 2010)J/AJ/137/4377 : List of SEGUE plate pairs (Yanny+, 2009)J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)J/AJ/136/2050 : SEGUE stellar parameter pipeline. II. (Lee+, 2008)J/ApJS/172/663 : Infrared observations of the Pleiades (Stauffer+, 2007)J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)J/A+A/417/651 : NEXXUS ROSAT survey of coronal X-ray (Schmitt+, 2004)J/A+A/410/527 : Abundances in the Galactic disk (Bensby+, 2003)J/A+A/367/111 : A Hipparcos study of the Hyades cluster (de Bruijne+, 2001)J/A+A/347/348 : Solar abundance of iron (Grevesse+, 1999)J/A+AS/135/319 : ROSAT data of Nearby Stars (Huensch+ 1999)J/A+A/332/575 : Pleiades member list (Belikov+ 1998)J/AJ/106/1059 : Lithium in the Pleiades (Soderblom+, 1993)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/222/19https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/222/19http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/222/19https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/222/19https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/222/19http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/222/19GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/222/19/kpno (Photometric data and magnitude excesses and lithium EWs of the KPNO (tables 1 and 7))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/222/19/kpno?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/222/19/kpno?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/222/19/kpno?GETtext/xml+votable180.050000true5.238001467.66747110.0055555555555555566/417 713 742 1452 1530 1932 2456 2636 2651 3121 3276 3296 3350 3372 3383 3662 3757 3786 4867 4879 5496 5914 5970 5989 6078 6699 8157 8202 8239 8254 8627 8699 8873 8881 9075 9354 9406 9439 9513 9626 9679 9748 9756 9763 9772 9801 9888 10051 10138 10165 10169 10316 10383 10424 10826 11009 11250 11268 11270 11340 11412 11442 11546 11569 11588 11633 11644 11686 11819 11910 11935 12288 12418 12658 12770 12772 12846 13016 13025 13164 13802 13900 13946 14117 14463 14767 14778 14814 14850 14889 14999 15000 15056 15366 15712 15722 15727 15869 15901 15992 15997 16069 16088 16177 16200 16347 16639 17001 17144 17314 17773 18548 18809 19219 19327 19350 20127 20392 20397 20479 22971 23177 24099 24102 25591 25703 25966 26020 26379 26906 28041 28400 28664 28987 29368 29422 29675 30143 30202 30310 30407 30671 30793 31254 31449 31459 31739 31785 31821 31984 32013 32126 32249 32399 32429 32596 32757 36350 36813 44982 45010 45050 48361 48554 48705 48757 48773 48792https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/222/19?format=asciiOpticaldefaultJ/ApJS/222/19/table3*Stellar parameters derived using MOOGrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIP[4907/118278] HIP numbermeta.id;meta.mainintf_HIP[b] Flag on HIP (1)meta.codecharTeff[4904/5949] Effective temperatureKphys.temperature.effectiveintlogg[3.2/4.6] Log of surface gravitylog(cm.s**-2)phys.gravityfloat[Fe/H][-1.5/0.1] Abundance [Fe/H]phys.abund.FefloatVt[0.8/1.7] Microturbulent velocitykm/sphys.velocfloat[Fe/H]c[-1.4/0.2] Abundance [Fe/H] corrected (G1)phys.abund.Fefloate_[Fe/H][0.009/0.04] [Fe/H] uncertaintystat.error;phys.abund.FefloatJ/ApJS/222/19/table6*Stellar parameters derived using the automated spectral matching technique (SMT)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIP[1674/118278] HIP numbermeta.id;meta.mainintTeff[4817/6456] SMT3 effective temperature (1)Kphys.temperature.effectiveinte_Teff[9/249] Teff uncertaintyKstat.error;phys.temperature.effectiveintlogg[3.9/4.9] SMT3 log of surface gravity (1)log(cm.s**-2)phys.gravityfloate_logg[0.01/0.3] logg uncertaintylog(cm.s**-2)stat.errorfloat[Fe/H][-1.4/0.2] SMT3 abundance of [Fe/H] (1)phys.abund.Fefloate_[Fe/H][0.009/0.3] [Fe/H] uncertaintystat.error;phys.abund.Fefloat[Fe/H]c[-1.4/0.1] Corrected [Fe/H] (G1)phys.abund.FefloatTeff2[4546/6019] SMT2 effective temperature (1)Kphys.temperature.effectiveinte_Teff2[28/79] Teff2 uncertaintyKstat.errorintlogg2[3.4/4.9] SMT2 log of surface gravity (1)log(cm.s**-2)phys.gravityfloate_logg2[0.007/0.3] logg2 uncertaintylog(cm.s**-2)stat.errorfloat[Fe/H]2[-1.9/0.4] SMT2 abundance of [Fe/H] (1)phys.abund.Fefloate_[Fe/H]2[0.007/0.2] [Fe/H]2 uncertaintystat.error;phys.abund.FefloatJ/ApJS/222/19/kpnoPhotometric data and magnitude excesses and lithium EWs of the KPNO (tables 1 and 7)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintADisplay the stellar parameters derived using MOOG and/or SMT techniquesmeta.ref.urlcharHIP[1674/118278] HIP numbermeta.id;meta.mainintprimaryf_HIP[c] Flag on HIP (1)meta.codecharHDHD name if anymeta.idcharVmag[4.6/9.9] V-band magnitude (2)magphot.mag;em.opt.Vfloate_Vmag[0.02/0.05] Vmag uncertaintymagstat.error;phot.mag;em.opt.VfloatB-V[0.6/1] B-V color index (2)magphot.color;em.opt.B;em.opt.Vfloate_B-V[0.02/0.08] B-V uncertaintymagstat.error;phot.color;em.opt.BfloatV-Ks[1.4/2.9]? V-Ks color indexmagphot.color;em.opt.V;em.IR.Kfloatnullablee_V-Ks[0.03/0.05]? V-Ks uncertaintymagstat.error;phot.color;em.opt.VfloatnullablePlx[12.5/173.8] Parallax (3)arcsecpos.parallax.trigfloate_Plx[0.1/2.2] Plx uncertainty (3)arcsecstat.error;pos.parallaxfloatVMag[4.8/7.3] Absolute V-band magnitude computed from the Hipparcos parallaxmagphot.mag;em.opt.Vfloate_VMag[0.02/0.2] VMag uncertaintymagstat.error;phot.mag;em.opt.VfloatNs[1/3]? Number of observations in springmeta.numberintnullableNa[1/3]? Number of observations in autumnmeta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlchardVMag[0.2/1.4] {delta}M_V_ from B-Vmagphot.mag;arith.difffloate_dVMag[0.1/0.5] delVMag uncertaintymagstat.error;phot.magfloatdelVMag2[-1/0.6] Absolute V-band magnitude excess ({Delta}M_V_) from B-V using SMT3magphot.color.excessfloate_delVMag2[0.1/0.43] delVMag2 uncertaintymagstat.error;phot.magfloatdelVMag3[-0.3/0.6]? Absolute V-band magnitude excess ({Delta}M_V_) from B-V using MOOGmagphot.color.excessfloatnullablee_delVMag3[0.1/0.5]? delVMag3 uncertaintymagstat.error;phot.magfloatnullabledVMag4[-1/0.7]? {delta}M_V_ from V-Ks (see section 4.2)magphot.mag;arith.difffloatnullablee_dVMag4[0.06/0.2]? delVMag4 uncertaintymagstat.error;phot.magfloatnullableW(Li)[7.3/128.7]? Lithium equivalent width in milliangstroms0.1pmspect.line.eqWidthfloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main