J/ApJ/758/110ivo://CDS.VizieR/J/ApJ/758/110doi:10.26093/cds/vizier.17580110CDSCarrera R.2017-10-02T19:28:15Z2014-08-07T12:00:40ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomyphotometryspectroscopyLow-resolution SDSS/SEGUE spectra have been used to study the behavior of the strengths of the CN and CH molecular bands in stars at different evolutionary stages of the open cluster NGC 6791. We find a significant spread in the strengths of the CN bands, more than twice that expected from the uncertainties, although the bimodalities observed in globular clusters are not clearly observed here. This behavior is observed not only among red clump objects but also in unevolved stars such as those in the main sequence and lower red giant branch. In contrast, not all of the stars studied show significant scatter in their CH strengths.2012ApJ...758..110Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/758/110CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)J/A+A/543/A106 : UBVRI photometry in NGC6791 (Brogaard+, 2012)J/A+A/525/A2 : Eclipsing binaries in NGC6791 (Brogaard+, 2011)J/AJ/142/126 : CN & CH in SDSS Galactic globular clusters (Smolinski+, 2011)J/AJ/141/89 : SEGUE stellar parameter pipeline. IV. (Smolinski+, 2011)J/ApJ/729/L10 : KIC stars properties in NGC 6791 and NGC 6819 (Basu+, 2011)J/A+A/524/A44 : CN and CH line strengths in 12 globulars (Pancino+, 2010)J/AJ/137/4377 : List of SEGUE plate pairs (Yanny+, 2009)J/A+A/486/437 : CN and CH line strengths in 8 Galactic GlCl (Kayser+, 2008)J/AJ/136/2070 : SEGUE pipeline. III. (Allende Prieto+, 2008)J/AJ/136/2050 : SEGUE stellar parameter pipeline. II. (Lee+, 2008)J/A+A/471/515 : V light curves of NGC 6791 variable stars (De Marchi+, 2007)J/AJ/134/1298 : CaII EWs in 29 Galactic clusters (Carrera+, 2007)J/AJ/133/1585 : Stromgren photometry in NGC 6791 (Anthony-Twarog+, 2007)J/AJ/129/2856 : Variable stars in NGC 6791 (Mochejska+, 2005)J/AJ/129/656 : Infrared photometry of NGC 6791 (Carney+, 2005)J/AJ/125/197 : CN abundances of the 47 Tuc main sequence (Harbeck+, 2003)J/PASP/115/413 : BVI photometry in the open cluster NGC 6791 (Stetson+, 2003)J/AJ/123/3460 : Low-amplitude variables in NGC 6791 (Mochejska+, 2002)J/A+AS/114/1 : CCD UBVI photometry of NGC 6791 (Kaluzny+, 1995)J/AJ/108/585 : UBVI photometry of NGC 6791 (Montgomery+, 1994)J/MNRAS/243/492 : BV Photometry of NGC 6791 (Kaluzny, 1990)http://www.sdss.org/ : SDSS home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/758/110https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/758/110http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/758/110https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/758/110https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/758/110http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/758/110GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/758/110/table1 (Index measurements for the sample stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/758/110/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/758/110/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/758/110/table1?GETtext/xml+votable180.050000true290.267833337.78856670.0055555555555555566/14573 145753.322582951404819e-19 4.653515163505597e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/758/110?format=asciiOpticalInfrareddefaultJ/ApJ/758/110/table1Index measurements for the sample starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPlateSDSS plate numbermeta.id;instr.plateintFiberSDSS fiber numbermeta.noteintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maingmag[14.7/20.2] SDSS g band magnitudemagphot.mag;em.opt.Bfloatg-r[0.3/1.5] SDSS (g-r) color indexmagphot.color;em.opt.B;em.opt.RfloatSBG[1697/14328] Stetson et al. 2003 (J/PASP/115/413) identifier (<Cl* NGC 6791 SBG NNNNN> in Simbad)meta.id;meta.mainintVmag[13.8/19.7] The V band magnitudemagphot.mag;em.opt.VfloatV-IThe (V-I) color indexmagphot.color;em.opt.V;em.opt.IfloatS3839H[-0.5/0.5] The S3839_H_ index (1)spect.indexfloate_S3839HUncertainty in S3839Hstat.errorfloatS3839N[-0.3/0.8] The S3839_N_ index (1)spect.indexfloate_S3839NUncertainty in S3839Nstat.errorfloatS4142[-0.5/0.1] The S4142 index (1)spect.indexfloate_S4142Uncertainty in S4142stat.errorfloatCH4300[-0.5/-0.2] The CH4300 index (1)spect.indexfloate_CH4300Uncertainty in CH4300stat.errorfloatStageEvolutionary stage (MS=Main Sequence, lRGB=lower Red Giant Branch, uRGB=upper RGB, or RC=red clump)src.classcharSDSSCross-match with the SDSS Photometric Catalog DR9 within 3"meta.ref.urlintnullableSCatDisplay the SBG data from Stetson+, 2003, Cat. J/PASP/115/413 and Carney+, 2005, Cat. J/AJ/129/656 for this starmeta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar