J/ApJS/249/30ivo://CDS.VizieR/J/ApJS/249/30doi:10.26093/cds/vizier.22490030CDSHolmbeck E.M.Hansen T.T.Beers T.C.Placco V.M.Whitten D.D.,Rasmussen K.C.Roederer I.U.Ezzeddine R.Sakari C.M.Frebel A.,Drout M.R.Simon J.D.Thompson I.B.Bland-Hawthorn J.Gibson B.K.,Grebel E.K.Kordopatis G.Kunder A.Melendez J.Navarro J.F.Reid W.A.,Seabroke G.Steinmetz M.Watson F.Wyse R.F.G.2023-02-03T11:06:48Z2020-11-20T11:19:11ZCDS support team

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

cds-question@unistra.frvisible-astronomyspectroscopychemically-peculiar-starsradial-velocityline-intensitieschemical-abundancesinfrared-sourcesThis compilation is the fourth data release from the R-Process Alliance (RPA) search for r-process-enhanced stars and the second release based on "snapshot" high-resolution (R~30000) spectra collected with the du Pont 2.5m Telescope. In this data release, we propose a new delineation between the r-I and r-II stellar classes at [Eu/Fe]=+0.7, instead of the empirically chosen [Eu/Fe]=+1.0 level previously in use, based on statistical tests of the complete set of RPA data released to date. We also statistically justify the minimum level of [Eu/Fe] for definition of the r-I stars, [Eu/Fe]>+0.3. Redefining the separation between r-I and r-II stars will aid in the analysis of the possible progenitors of these two classes of stars and determine whether these signatures arise from separate astrophysical sources at all. Applying this redefinition to previous RPA data, the number of identified r-II and r-I stars changes to 51 and 121, respectively, from the initial set of data releases published thus far. In this data release, we identify 21 new r-II, 111 new r-I (plus 3 re-identified), and 7 new (plus 1 re-identified) limited-r stars out of a total of 232 target stars, resulting in a total sample of 72 new r-II stars, 232 new r-I stars, and 42 new limited-r stars identified by the RPA to date.2020ApJS..249...30Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/249/30CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/279 : RAVE 5th data release (Kunder+, 2017)I/345 : Gaia DR2 (Gaia Collaboration, 2018)II/358 : SkyMapper Southern Sky Survey. DR1.1 (Wolf+, 2018)J/A+A/439/129 : HERES II. Spectroscopic analysis (Barklem+, 2005)J/A+A/484/721 : HES survey. IV. Candidate metal-poor stars (Christlieb+, 2008)J/MNRAS/404/1529 : s-process in low-metallicity stars (Bisterzo+, 2010)J/ApJ/737/9 : RAVE spec. data of stars in the thick disk (Ruchti+, 2011)J/AJ/141/175 : Abundances in M15 RGB/RHB stars (Sobeck+, 2011)J/ApJ/753/64 : Detailed abundances for 97 metal-poor stars (Ishigaki+, 2012)J/ApJ/769/57 : Equivalent widths of metal-poor stars (Frebel+, 2013)J/A+A/552/A64 : Gaia-RVS standards (Soubiran+, 2013)J/A+A/571/A47 : Extensive linelist of CH in atmospheres (Masseron+, 2014)J/AJ/148/81 : APASS BVgri photometry of RAVE stars. I. Data (Munari+, 2014)J/ApJS/211/5 : Improved line data for the Swan system ^12^C^13^C (Ram+, 2014)J/AJ/147/136 : Stars of very low metal abundance. VI. (Roederer+, 2014)J/ApJ/797/13 : Abundances of bright metal-poor stars (Schlaufman+, 2014)J/ApJS/214/26 : Line lists for CN isotopes transitions (Sneden+, 2014)J/AJ/151/82 : The 4 brightest red giants in Ret 2 (Roederer+, 2016)J/ApJ/835/81 : Bright metal-poor stars from HES Survey. II. (Beers+, 2017)J/ApJ/847/142 : Ultra-metal-poor stars LTE & NLTE abund. (Ezzeddine+, 2017)J/ApJ/862/174 : Spectroscopy obs. of RAVE J094921.8-161722 (Gull+, 2018)J/ApJ/858/92 : RPA Southern Pilot Search of 107 Stars (Hansen+, 2018)J/AJ/155/256 : Spectrosc. validation of RAVE metal-poor stars (Placco+, 2018)J/AJ/156/179 : Highly r-process-enhanced kinematics (Roederer+, 2018)J/ApJ/865/129 : Abundance analysis of HD 222925 (Roederer+, 2018)J/ApJ/868/110 : R-Process Alliance: Galactic halo, 1st release (Sakari+, 2018)J/ApJ/870/122 : Spectroscopy of low-metallicity star cand. (Placco+, 2019)J/ApJ/874/148 : Metal-poor star RAVE J093730.5-062655 abund. (Sakari+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/249/30https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/249/30http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/249/30https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/249/30https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/249/30http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/249/30GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/249/30/stars (Observation log and HRVs (Table 1) and model atmospheric parameters (Table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/249/30/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/249/30/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/249/30/stars?GETtext/xml+votable180.050000true0.1-11.1290.0055555555555555566/8710 16456 16569 16611 16810 16812 16890 16893 16895 16901 16924 17212 17412 17516 17604 17970 18178 18439 18477 18710 18959 19012 19492 20532 20538 20882 22632 22732 24594 24656 24674 24683 24696 24743 25017 25074 25197 25207 25302 25398 25479 25521 25569 25608 25622 26679 26688 26767 27182 27273 29029 30783 30858 31434 33030 33109 33134 33150 33200 33664 33703 33821 33823 34141 34391 34427 34483 34559 34589 34747 34798 34827 34865 34882 34952 35084 35179 35201-35202 35236 35338 35343 35479 35513 35585 35647 35750 35760 35794 35809 35873 35989 36002 36407 36705 36722 36783 36980 37424 37504 37540 37598 37620 37674 37979 37983 38079 38118 38316 38368 38396 38497 38506 38511 38635 38663 38693 38721 38775 38791 38809 38982 38994 39040 39061 39084 39094 39108 39141 39208 39328-39329 39333 39653 39660 39725 39810 40257 40278 40337 40381 40498 40502 40524 40752 40820 41064 41315 41969 41979 42047 42073 42076 42657 42676 42924 43181 43210 43228 43262 43265 43398 43516 43555 43563 43595 43671 43728 43856 43860 43864 43905 43958 43975 44034-44035 44412 44421 44545 44615 44634 44641 44714 44754 44825 44897 44940 45483 45765 45829 46040 46059 46102 46112 46115 46151 46253 46258 46309 46333 46389 46413 46516 47025 47084 47206 47279 47356 47420 47431 47533 47564 47575 47589 47607 47650 47666 47894 47926 47941 48173 48187 48611 48632 48648 48674 48798 48824 48837 48937 49103https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/249/30?format=asciiOpticalInfrareddefaultJ/ApJS/249/30/starsObservation log and HRVs (Table 1) and model atmospheric parameters (Table 3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASSStar name (JHHMMSSss+DDMMSSs)meta.id;meta.maincharprimaryRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainVmag[7.9/13.8]? V band magnitude (1)magphot.mag;em.opt.VfloatnullableMJD[57818/58081.4] Modified Julian Date of Observation (JD-2400000.5)dtime.epochdoubleExp[150/4500] Exposure timestime.duration;obs.exposureintS/N[11/147] Signal-to-noice at 4129{AA}, Eu IIstat.snrintSimbadSimbad column added by the CDSmeta.ref.urlcharHRV[-310.5/475.5] Measured heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_HRV[0.04/2.2] Uncertainty in HRVkm/sstat.errorfloatRefSource(s) (2)meta.bibcharEWsNumber of Fe equivalent width measurements (link to Table 2)meta.numberintnullableRVsNumber of RV measurements (link to Table 6)meta.numberintnullableTeff[4305/6175] Stellar effective surface temperatureKphys.temperature.effectiveintlogg[0.52/3.86] log of surface gravitylog(cm.s**-2)phys.gravityfloat[Fe/H][-3.75/-1.1] Metallicityphys.abund.Zfloate_[Fe/H][0.1/0.21] Uncertainty in [Fe/H]stat.error;phys.abund.FefloatNFeI[28/174] Number of FeI linesmeta.numberintNFeII[6/33] Number of FeII linesmeta.numberintVt[1.21/3.46] micro-turbulent velocity {xi}km/sphys.veloc.microTurbfloatRAVEDisplay the RAVE DR5 data (III/279) within 2"meta.ref.urlnullableJ/ApJS/249/30/table5Neutron-capture abundances and sub-class assignmentsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASSStar name (JHHMMSSss+DDMMSSs)meta.id;meta.maincharf_2MASSSource notes (1)meta.codechar[Fe/H][-3.75/-1.1] Iron abundance relative to Hydrogen (2)phys.abund.Fe;arith.ratiofloatl_[C/Fe]Limit flag for [C/Fe]meta.code.error;phys.abundchar[C/Fe][-1.2/1.8] Carbon to Iron abundance (2)phys.abundfloat[C/Fe]c[-0.54/1.83]? Carbon to Iron abundance, corrected (2)phys.abundfloatnullable[Sr/Fe][-1.9/1.6] Strontium to Iron abundance (2)phys.abundfloatl_[Ba/Fe]Limit flag for [Ba/Fe]meta.code.error;phys.abundchar[Ba/Fe][-1.34/1.4] Barium to Iron abundance (2)phys.abundfloatl_[Eu/Fe]Limit flag for [Eu/Fe]meta.code.error;phys.abundchar[Eu/Fe][-0.63/1.5]? Europium to Iron abundance (2)phys.abundfloatnullablesubClassDominant neutron capture process (3)src.classcharJ/ApJS/249/30/table2Fe I and Fe II equivalent width measurements2MASSStar name (JHHMMSSss+DDMMSSs)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIon[26.0/26.1] Atomic species (element and ionization state)phys.atmol.ionStagefloatlambda[3554/8824.3] Transition wavelength; in Angstrom units0.1nmem.wl;phys.atmol.transitionfloatEP[0/4.99] Excitation potentialeVphys.atmol.excitationfloatloggf[-5.43/0.65] Log of oscillator strengthphys.atmol.oscStrengthfloatEW[3.7/199.2] Measured equivalent width; in milli-Angstrom units1e-13mspect.line.eqWidthfloatloge[3.5/6.8] Derived abundancephys.abundfloatJ/ApJS/249/30/table6Radial velocities from Gaia DR2 and this data release for possible binariesr_RVlSource for RVl (1)meta.ref;pos.framechar2MASSStar name (JHHMMSSss+DDMMSSs)meta.id;meta.mainchare_RVl[0.2/18]? Uncertainty RVlkm/sstat.errorfloatnullabledRV[-30.8/42.4] {delta} radial velocity, HRV-RVlkm/sphys.veloc;arith.difffloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHRV[-221.4/297] Heliocentric Radial velocity (from Table 2)km/sspect.dopplerVeloc;pos.heliocentricfloate_HRV[0.1/1.8] Uncertainty in HRVkm/sstat.errorfloatRVl[-227/324] Radial Velocity, Literaturekm/sspect.dopplerVelocfloat