J/MNRAS/490/2241ivo://CDS.VizieR/J/MNRAS/490/2241doi:10.26093/cds/vizier.74902241CDSAguado D.S.Youakim K.Gonzalez Hernandez J.I.Allende Prieto C.,Starkenburg E.Martin N.Bonifacio P.Arentsen A.Caffau E.,Peralta de Arriba L.Sestito F.Garcia-Dias R.Fantin N.Hill V.,Jablonca P.Jahandar F.Kielty C.Longeard N.Lucchesi R.,Sanchez-Janssen R.Osorio Y.Palicio P.A.Tolstoy E.Wilson T.G.,Cote P.Kordopatis G.Lardo C.Navarro J.F.Thomas G.F.Venn K.2024-08-20T20:13:42Z2023-03-21T13:04:58ZCDS support team

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

cds-question@unistra.frmetallicityphotometryspectroscopyeffective-temperaturevisible-astronomyWe present the results of a 3-yr long, medium-resolution spectroscopic campaign aimed at identifying very metal-poor stars from candidates selected with the CaHK, metallicity-sensitive Pristine survey. The catalogue consists of a total of 1007 stars, and includes 146 rediscoveries of metal-poor stars already presented in previous surveys, 707 new very metal-poor stars with [Fe/H]<-2.0, and 95 new extremely metal-poor stars with [Fe/H]<-3.0. We provide a spectroscopic [Fe/H] for every star in the catalogue, and [C/Fe] measurements for a subset of the stars (10 per cent with [Fe/H]<-3 and 24 per cent with -3<[Fe/H]<-2) for which a carbon determination is possible, contingent mainly on the carbon abundance, effective temperature and signal-to-noise ratio of the stellar spectra. We find an average carbon enhancement fraction ([C/Fe]>=+0.7) of 41+/-4 per cent for stars with -3<[Fe/H]<-2 and 58+/-14 per cent for stars with [Fe/H]<-3, and report updated success rates for the Pristine survey of 56 per cent and 23 per cent to recover stars with [Fe/H]<-2.5 and <-3, respectively. Finally, we discuss the current status of the survey and its preparation for providing targets to upcoming multi-object spectroscopic surveys such as William Herschel Telescope Enhanced Area Velocity Explorer.2019MNRAS.490.2241Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/490/2241CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AN/338/686 : Pristine survey II. Bright stars abundances (Caffau+, 2017)J/MNRAS/472/2963 : Metallicities of Pristine stars (Youakim+, 2017)J/MNRAS/487/3797 : A bright star sample observed with SOPHIEJ/MNRAS/519/5554 : Pristine survey. XX. (Arentsen+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/490/2241https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/490/2241http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/490/2241https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/490/2241https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/490/2241http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/490/2241GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/490/2241/table4 (Efective temperatures, surface gravities, metallicities and carbon abundances of the Pristine spectroscopic sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/490/2241/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/490/2241/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/490/2241/table4?GETtext/xml+votable180.050000true0.2378916733.982749940.0055555555555555565/560 2120 7884 7895 7901 7931 8096 6/732 748 750-751 762-763 904-905 908-909 933-934 2102 2110 2132 2137 2186-2188 2190 2198 2203 2214 2217-2218 2246 2249 2251-2252 2560 2562 2566 2568 2574-2576 2584 2593-2594 2596 2600 4316 4319 4338 4350 4368 4373 4380-4382 4391 4402 4406 4412 4418 4422 4427 4430 4432 4434 4483 4677 4679 4688-4689 4823 4827 4829 4843 4845-4846 4848-4849 4856 4858 4902 4909 4926 5005-5006 5008-5009 5011-5012 5018 5027-5028 5032 5049 5054 5097 5104 5106 6174 6195-6196 6198 6205-6206 6213-6214 6217 6219 6223-6224 6231 6233 6248 6261 6265 6267 6343 6345 6348-6349 6366 6373 6400 6404 6413 6435 6443 6493 6511 6534 6541 6552 6570-6571 6573 6580 6584 6587 6595-6596 6600-6601 6604 6606 6625 6627-6629 6631 6652 6737 6741-6743 6749 6912-6913 6915 6917-6919 6928-6930 6932 7177 7337 8200 8240 8243 8245-8247 8250 8254 8257 8259-8262 8266-8267 8269 8272 8274-8278 8280-8281 8283 8291 8297-8299 8303-8304 8306 8308 8311 8313 8319 8321-8322 8324 8326-8327 8329-8330 8332-8333 8335-8336 8341-8342 8344 8355 8360 8366 8375 8387 8398 8405 8412 8417-8418 8424 8430 8432-8433 8449-8451 8454-8455 8457-8459 8461 8463-8465 8467 8471-8472 8476 8486 8492 8496-8498 8513 8515-8517 8524 8708-8709 8712 8715-8718 8724 8726-8727 8730-8731 8733-8735 8741 8744-8745 8755 8769-8770 8834 9534 9570 9622-9623 9629-9630 9635 9655 9657-9660 9672 9811-9812 9817 9827 9830 9832 9840 9842 9878 9936 9938 9945-9946 9985 9992-9993 10003 10013-10014 10021 10025 10032 10559 10585 10644 10652 10659 10680 10686 10722 10727-10728 10732 10815 10829-10830 10834-10835 10843 10853 10859 10861 10873 10895 10897 10899-10900 10903-10904 10907 10909-10911 10921 10923 10925 10927 10930 10932 10944 10948 10956 10959 10970-10971 10975-10976 10982 10989 11013 11018-11019 11037 11040 11042 11045 11049 12759-12761 12764-12765 12771 12773 12775 12782 12787 13127 13336 13339 19927 19954-19955 19966 20254-20255 20279 20296 20298 20304 20310-20311 20318 20320 20323 20327 20329 20333 20337 20341-20342 20347 20349 20421 20423 20428 20433-20435 20440 20442 26029 26032 26035-26036 26044 26057 26095 26104 26106 26110-26111 26265 26267 26270 26278-26279 26284 26294 26296 26298-26299 26301 26336 26345 26354 26361 26366-26367 26399 26414-26415 26420-26422 26424-26426 26435 26438 26440 26443 26447-26448 26455 26458 26460 26470 26475-26476 26478 26484 26487-26488 26495 26498 26510 26512-26513 26520 26523 26531 26540 26552 26554 26561-26562 26565 26573 26576 26580 26585-26587 26590 26593 26596 26599 26601 26604-26606 27408 27577 27583 27591 27602 27614 27618 27623-27624 27629 27633 27638-27639 27646 27649 27651-27652 27654-27655 27660-27661 27668-27669 27678-27679 27696 27714-27715 27719-27721 27730 27732 27741 27745 27752 27757-27758 27762 27767 27845 27847 27857 27871 27889 27892 27908 27912-27913 27915 27917 27932 27943-27944 27947-27948 27968 27970 28032 28669 28671 31334 31397-31399 31406-31407 31411 31414 31417 31426 31432-31433 31435 31438 31441-31443 31453 31455 31457 31460 31462 31469-31471 31474-31475 31477-31478 31481-31484 31507 31510-31511 31515 31517 31525 31527 31529 31531 31534-31535 31540 31542-31546 31549-31551 31567 31575 31585 31587-31588 31590-31592 31594-31595 31597-31599 31601 31603 31609 31611 31613-31616 31618 31620-31622 31626-31630 31634-31637 31640-31641 31643-31645 31648-31649 31651-31653 31655 31657-31659 31661 31671-31672 31676-31678 31680-31682 31685-31686 31688 31693-31694 31696-31697 31699-31702 31705-31708 31710-31711 31713 31715-31716 31718 31720 31728 31730 31733 31736 31738-31739 32258 32264 32266-32267 32292 32298-32300 32302 32314 32388-32389 32391-32393 32395-32396 32400 32402 32416 32419https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/490/2241?format=asciiOpticaldefaultJ/MNRAS/490/2241/table4Efective temperatures, surface gravities, metallicities and carbon abundances of the Pristine spectroscopic sampleSimbadNameSimbad column added by the CDSmeta.idcharnullableq_[Fe/H]F[TX] Quality flag on [Fe/H]F (3)meta.code.qual;phys.abund.FecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_Name[*] Flag on Name (1)meta.codecharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainVmagSDSS V magnitude derived using g and r (2)magphot.mag;em.opt.VfloatCaHKmagMagnitude obtained from the Pristine narrow-band filtermagphot.mag;em.optfloate_CaHKmagError on CaHKmagmagstat.error;phot.magfloat[Fe/H]PPhotometric metallicity determined using the (g-i)_0_ SDSS colours and Pristine photometryphys.abund.Fefloat[Fe/H]FSpectroscopic metallicity derived from FERREphys.abund.Fefloate_[Fe/H]FError on [Fe/H]Fstat.error;phys.abund.FefloatTeffEffective temperature derived from FERREKphys.temperature.effectiveinte_TeffError on TeffKstat.error;phys.temperature.effectiveintloggSurface gravity derived from FERRElog(cm.s**-2)phys.gravityfloate_loggError on logglog(cm.s**-2)stat.errorfloat[C/Fe]C/Fe abundance ratio derived from FERREphys.abund;arith.ratiofloate_[C/Fe]Error on [C/Fe]stat.error;phys.abundfloatq_[C/Fe][-1/1] Quality flag on [C/Fe] (4)meta.code.qual;phys.abundintprevobsOther survey(s) with spectroscopic observations of the sourcemeta.idcharNamePristine stat name (PDDD.dddd+DD.dddd)meta.id;meta.mainchar