J/A+A/695/A112ivo://CDS.VizieR/J/A+A/695/A112CDSViswanathan A.Yuan Z.Ardern-Arentsen A.Starkenburg E.Martin N.F.,Youakim K.Ibata R.A.Sestito F.Matsuno T.Allende Prieto C.,Barwell F.Bayer M.Doliva-Dolinsky A.Fernandez-Alvar E.,Galan-de Anta P.M.Jhass K.Longeard N.Arroyo-Polonio J.M.Massana P.,Montelius M.Rusterucci S.Santos-Torres J.Thomas G.F.Vitali S.,Wu W.Yarker P.Ye X.Aguado D.S.Gran F.Navarro J.2026-05-06T11:55:52Z2025-03-12T07:29:05ZCDS support team

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

cds-question@unistra.frmilky-way-galaxychemically-peculiar-starsvisible-astronomyspectroscopyline-intensitiesWe present the first spectroscopic follow-up of bright (G<15) and distant (up to 35kpc) very and extremely metal-poor (V/EMP, [Fe/H]<-2.5) red giant branch stars from the Pristine-Gaia synthetic catalogue. Using INT/IDS observations of the calcium triplet region, we confirm that 76% of our targets have [Fe/H]<-2.5, with only 3% as outliers ([Fe/H]>-2.0), demonstrating a high success rate (77% for [Fe/H]<-2.5 and 38% for [Fe/H]<-3.0). Our chemodynamical analysis reveals that 20% of stars are confined to the disc, while 46% and 34% belong to the inner and outer halo, respectively. We associate these stars with major accretion events and identify three new bright members of the metal-poor C-19 stream, including the first found above the disc plane. Our findings refine the stream's distance (~21.5kpc) and highlight the power of chemokinematic studies of V/EMP stars. We publish a catalogue of 215 V/EMP stars with 1D spectra for future analysis.2025A&A...695A.112Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/695/A112CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/692/A115 : Pristine survey DR1 (Martin+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/695/A112https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/695/A112http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/695/A112https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/695/A112https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/695/A112http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/695/A112GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/695/A112/int-emps (INT/IDS follow-up of V/EMP stars (table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/695/A112/int-emps?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/695/A112/int-emps?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/695/A112/int-emps?GETtext/xml+votable180.050000true230.995052344.942853990.0055555555555555566/744 801 822 1182 1879 2100 2385 2460 2576 2599 2664 2787 2845 3237 3434 3537 4601 5871 5954 6589 6695 6716 6870 6897 7002 7161 7716 7719 8262 8328 8605 8657 8940 9051 9058 9458 9616-9617 9805 9907 10143 10607 10616 10618 10689 10764 10921 11040 11252 11268 11381 11619 11623 12343 12349 12355 12412 12433 12487 12552 12556 12569 12594 12683 12769 13465 13631 13652 13666 13676 14988 15307 16071 16083 16259 16663 17339 17608 18258 18287 18472 18571 18578 18623 19089-19090 19115 19331 19514 19518-19519 19571 19659 19709 19803 19839 19851 19895 19953 19963 19998 20043 20046 20103 20179 20358 20365 20377 20385 20459 21202 22401 22584-22585 22632 22662 24034 27457 27719 27927 29023 29324 29727 29743 29778 29783 29917 29962 29991 30000 30003 30038 30095 30117 30853 30872 30954 30964 31075 31223 31471 31475 31532 31599 31614 31644 31696 31705 31922 31927 31933 31964 32042 32191 32287 32395 32542 32616-32617 32661 32673 32704 32722 40898 44638 44936 47102 47993 48063 48071 48075 48087-48088 48092 48106 48115 48125 48466 48578 48655 48691 48718 48734 48738 48764 48777 48780 48782 48829 48846 48869 48878-48879 48891-48892 48919 48937 49033 49040 49053 49056 49102 49123https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/695/A112?format=asciiOpticaldefaultJ/A+A/695/A112/int-empsINT/IDS follow-up of V/EMP stars (table 3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3Gaia DR3 Source IDmeta.id;meta.mainRA_ICRSGaia DR3 right ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.mainDE_ICRSGaia DR3 declination (ICRS) at Ep=2016.0degpos.eq.dec;meta.mainDistPhotometric distance or inverted parallaxkpcpos.distancedoublee_DistUncertainty on the photometric distancekpcstat.errordoubleEW1Equivalent width of Ca triplet line 10.1nmspect.line.eqWidthdoubleSimbadSimbad column added by the CDSmeta.ref.urlchare_EW1Error on equivalent width of Ca triplet line 10.1nmstat.errordoubleEW2Equivalent width of Ca triplet line 20.1nmspect.line.eqWidthdoublee_EW2Error on equivalent width of Ca triplet line 20.1nmstat.errordoubleEW3Equivalent width of Ca triplet line 30.1nmspect.line.eqWidthdoublee_EW3Error on equivalent width of Ca triplet line 30.1nmstat.errordoubleSNRSNR of Gaia RVS spectrastat.snrdoublee_RVUncertainty in the measured radial velocitykm/sstat.errorfloatRV? Radial velocity measured from the INT CaT spectrakm/sphys.veloc;pos.heliocentricdoublenullable[Fe/H]Spectroscopic metallicityphys.abund.Zdoublee_[Fe/H]Measurement error on spectroscopic metallicitystat.error;phys.abund.FedoubleJr? Radial actionkpc.km/sphys.angMomentumdoublenullableJz? Vertical actionkpc.km/sphys.angMomentumdoublenullableJphiAzimuthal actionkpc.km/sphys.angMomentumdoubleETotal energykpc.km**2.s**-2phys.energydoublerperiPericenterkpcpos.distance;src.orbitaldoublerapoApocenterkpcpos.distance;src.orbitaldoublezmaxMaximum height above the planekpcpos.cartesian.z;pos.galacticdoubleeccEccentricitysrc.orbital.eccentricitydoubleGmag0De-reddened Gaia G magnitudemagphot.mag;em.optdoubleBPmag0De-reddened Gaia BP magnitudemagphot.mag;em.opt.BdoubleRPmag0De-reddened Gaia RP magnitudemagphot.mag;em.opt.RdoubleGroup[0/4] Group number for stars that are clustered in IOM spacemeta.idintJ/A+A/695/A112/listList of fits spectraTitleTitle of the FITS filemeta.title;meta.fitscharGaiaDR3dataDisplay the Gaia DR3 data 9Cat. I/355)meta.ref.urlcharFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.dateObservation datestime.epoch;obsnullableblambdaLower value of wavelenght interval0.1nmem.wlfloatBlambdaUpper value of wavelenght interval0.1nmem.wlfloatdlambdaWavelenght resolution0.1nmpos.angResolutiondoublesizeSize of FITS fileKibytephys.size;meta.fitsintGaiaDR3Gaia DR3 identifiermeta.id;meta.main