J/ApJ/732/39ivo://CDS.VizieR/J/ApJ/732/39doi:10.26093/cds/vizier.17320039CDSCarlberg J.K.Majewski S.R.Patterson R.J.Bizyaev D.Smith V.V.,Cunha K.2017-06-30T05:48:56Z2012-12-04T08:03:32ZCDS support team

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

cds-question@unistra.frgiant-starsk-starseffective-temperatureWe present the results of a search for unusually rapidly rotating giant stars in a large sample of K giants (~1300 stars) that had been spectroscopically monitored as potential targets for the Space Interferometry Mission's Astrometric Grid. The stars in this catalog are much fainter and typically more metal-poor than those of other catalogs of red giant star rotational velocities, but the spectra generally only have signal-to-noise ratio (S/N) of ~20-60, making the measurement of the widths of individual lines difficult. To compensate for this, we have developed a cross-correlation method to derive rotational velocities in moderate S/N echelle spectra to efficiently probe this sample for rapid rotator candidates. We have discovered 28 new red giant rapid rotators as well as one extreme rapid rotator with a vsin i of 86.4km/s. Rapid rotators comprise 2.2% of our sample, which is consistent with other surveys of brighter, more metal-rich K giant stars. Although we find that the temperature distribution of rapid rotators is similar to that of the slow rotators, this may not be the case with the distributions of surface gravity and metallicity. The rapid rotators show a slight overabundance of low-gravity stars and as a group are significantly more metal-poor than the slow rotators, which may indicate that the rotators are tidally locked binaries.2011ApJ...732...39Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/732/39CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/259 : The Tycho-2 Catalogue (Hog+ 2000)J/A+A/536/A71 : Atmospheric parameters of nearby giant stars (Jones+, 2011)J/AJ/140/1911 : Astrometric Grid Giant Star Survey. II. (Bizyaev+, 2010)J/AJ/135/209 : Rotational and radial velocities 761 HIP giants (Massarotti+,J/A+A/475/1003 : Stellar parameters of G and K giant stars (Hekker+, 2007)J/AJ/131/1784 : Astrometric Grid Giant Star Survey. I. (Bizyaev+, 2006)J/A+AS/127/277 : Rotation and binary rate among giant F stars (Kunzli+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/732/39https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/732/39http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/732/39https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/732/39https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/732/39http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/732/39GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/732/39/vsini (vsini of program stars })https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/732/39/vsini?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/732/39/vsini?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/732/39/vsini?GETtext/xml+votable180.050000true359.72367.56723330.0055555555555555566/29 45 110 194 196 204 321 328 332 393 396 588 825 915 920 965 976 1013 1036 1164 1214 1296 1297 1312 1314 1351 1475 1547 1571 1574 1596 1607 1681 1696 1887 1895 1901 1924 1927 1930 1972 1980 1991 2194 2200 2212 2398 2419 2423 2550 2555 2805 2806 2809 2945 2947 2949 3057 3059 3186 3192 3231 3252 3296 3542 3547 3548 3561 3566 3588 3607 3612 3631 3632 3714 3716 3755 4115 4162 4163 4252 4254 4279 4344 4346 4350 4356 4424 4425 4471 4488 4532 4534 4536 4729 4732 4853 4961 5009 5127 5169 5183 5188 5191 5201 5236 5279 5314 5323 5324 5366 5367 5374 5410 5416 5451 5454 5471 5472 5494 5497 5853 5975 5996 5997 5999 6017 6024 6046 6047 6064 6107 6108 6224 6226 6279 6284 6308 6327 6346 6368 6459 6715 7021 7032 7041 7044 7045 7046 7069 7087 7097 7220 7269 7279 7289 7325 7326 7383 7388 7402 7403 7413 7425 7426 7433 7469 7509 7511 7574 7575 7744 7851 7964 7977 7979 7980 8033 8035 8039 8084 8089 8113 8147 8153 8221 8222 8223 8236 8239 8343 8350 8357 8371 8606 8623 8627 8629 8645 8658 8685 8691 8721 8731 8734 8751 8764 8823 8828 8839 8850 8902 8908 8914 8927 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49124https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/732/39?format=asciiOpticaldefaultJ/ApJ/732/39/vsinivsini of program stars }fthe asterisk (*) indicates stars flagged in the vsini derivation (from table3 of paper)meta.code.qualcharNameStellar Namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainl_vsiniUpper limit indicator on vsinimeta.code.error;phys.veloc.rotatcharvsiniProjected rotational velocitykm/sphys.veloc.rotatfloate_vsiniUncertainty in vsinikm/sstat.error;phys.veloc.rotatfloato_vsiniNumber of individual measures in vsini measuremeta.numberintTeffEffective temperature from photometryKphys.temperature.effectiveintTYCThe Tycho designation (FFFF-NNNNN-N) (Cat. I/259)meta.idcharHIPThe HIP number (Cat. I/311)meta.idcharHDThe HD numbermeta.idcharBDThe BD designation (BD+DD NNNNa)meta.idcharB101: link to GGSS from Bizyaev+, 2010, Cat. J/AJ/140/1911meta.ref.urlintnullableB061: link to GGSS from Bizyaev+, 2006, Cat. J/AJ/131/1784meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.refchar