Halo red giants from the SEGUE survey J/A+A/534/A136 ivo://CDS.VizieR/J/A+A/534/A136 doi:10.26093/cds/vizier.35340136 CDS Martell S.L. Smolinski J.P. Beers T.C. Grebel E.K. 2013-07-23T12:24:26Z 2011-10-20T08:34:52Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr globular-star-clusters halo-stars giant-stars chemical-abundances visible-astronomy sloan-photometry We present a spectroscopic search for halo field stars that originally formed in globular clusters. Using moderate-resolution SDSS-III/SEGUE-2 spectra of 561 red giants with typical halo metallicities (-1.8<=[Fe/H]<=-1.0), we identify 16 stars, 3% of the sample, with CN and CH bandstrength behavior indicating depleted carbon and enhanced nitrogen abundances relative to the rest of the data set. Since globular clusters are the only environment known in which stars form with this pattern of atypical light-element abundances, we claim that these stars are second-generation globular cluster stars that have been lost to the halo field via normal cluster mass-loss processes. 2011A&A...534A.136M https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/534/A136 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to http://www.sdss.org : SDSS Home Page https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/534/A136 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/534/A136 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/534/A136 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/534/A136 https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/534/A136 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/534/A136 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/A+A/534/A136/catalog (Data for each star in the final data set from this study and the final data set from Martell and Grebel (2010A&A...519A..14M)) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/534/A136/catalog? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/534/A136/catalog? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/534/A136/catalog? 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31907-31908 31910 32414-32415 32423 32433-32435 32440 32478-32479 32482 32488 32490 32506-32507 32519 32525 32530-32531 32536-32537 32539 32547 32550-32551 32553-32555 32650 32672 32685 32694 32696 32698-32700 32702 36718 36774 36781 36786 36792 36794 36804 48857 48860 48879 48881 48889-48891 49009 49011-49012 49017 49019-49020 49022 49079 49085 49120 49122-49123 49128 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/534/A136?format=ascii Optical default J/A+A/534/A136/catalog Data for each star in the final data set from this study and the final data set from Martell and Grebel (2010A&A...519A..14M) MJD Modified Julian date of observation time.epoch int recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS Unique SDSS identifier, JHHMMSS.ss+DDMMSS.s meta.id;meta.main char Plate SDSS plug-plate number obs.field int Fiber Fiber number meta.id int g0 Dereddened apparent g magnitude mag phot.mag;em.opt.B float (g-r)0 Dereddened apparent (g-r) color index mag phot.color;em.opt.B;em.opt.R float [Fe/H] Metallicity log(Sun) phys.abund.Z float Teff Effective temperature K phys.temperature.effective int logg Surface gravity log(cm.s**-2) phys.gravity float S [12] Survey name : SEGUE-1 or SEGUE-2 meta.id char S(CN) CN bandstrength index at 3883{AA} (1) mag spect.index float S(CH) CH bandstrength index at 4320{AA} (2) mag spect.index float CN CN class, as "Normal" or "Strong" meta.note char rMAG Absolute r magnitude mag phys.magAbs float Dist Heliocentric distance kpc pos.distance float rGC Galactocentric distance kpc pos.distance;pos.galactocentric float Sloan Display the SDSS data for this star meta.ref.url char RAJ2000 Right ascension (J2000) pos.eq.ra;meta.main DEJ2000 Declination (J2000) pos.eq.dec;meta.main