J/MNRAS/452/4326ivo://CDS.VizieR/J/MNRAS/452/4326doi:10.26093/cds/vizier.74524326CDSBerg T.A.M.Ellison S.L.Prochaska J.X.Venn K.A.Dessauges-Zavadsky M.2024-08-15T20:14:43Z2016-06-22T16:02:47ZCDS support team

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

cds-question@unistra.frgalaxiesquasarschemical-abundancesUsing our sample of the most metal-rich damped Lyman {alpha} systems (DLAs) at z_abs_~2, and two literature compilations of chemical abundances in 341 DLAs and 2818 stars, we present an analysis of the chemical composition of DLAs in the context of the Local Group. The metal-rich sample of DLAs at z_abs~2 probes metallicities as high as the Galactic disc and the most metal-rich dwarf spheroidals (dSphs), permitting an analysis of many elements typically observed in DLAs (Fe, Zn, Cr, Mn, Si, and S) in comparison to stellar abundances observed in the Galaxy and its satellites (in particular dSphs). Our main conclusions are: (1) non-solar [Zn/Fe] abundances in metal-poor Galactic stars and in dSphs over the full metallicity range probed by DLAs, suggest that Zn is not a simple proxy for Fe in DLAs and therefore not a suitable indicator of dust depletion. After correcting for dust depletion, the majority of DLAs have subsolar [Zn/Fe] similar to dSphs; (2) at [Fe/H]~-0.5, a constant [Mn/Fe]~-0.5 and near-solar [{alpha}/Fe] (requiring an assumption about dust depletion) are in better agreement with dwarf galaxies than Galactic disc stars; (3) [{alpha}/Zn] is usually solar or subsolar in DLAs. However, although low ratios of [{alpha}/Fe] are usually considered more 'dwarf-like' than `Milky Way-like', subsolar [Zn/Fe] in Local Group dwarfs leads to supersolar [{alpha}/Zn] in the dSphs, in contrast with the DLAs. Therefore, whilst DLAs exhibit some similarities with the Local Group dwarf population, there are also notable differences.2015MNRAS.452.4326Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/452/4326CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/452/4326https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/452/4326http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/452/4326https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/452/4326https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/452/4326http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/452/4326GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/452/4326/tablea1 (*DLA literature compilation)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/452/4326/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/452/4326/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/452/4326/tablea1?GETtext/xml+votable180.050000true244.205968341.90456780.0055555555555555566/2 523 579 638 1709 2172 2247 2348 4168 4186-4187 4273 4279 4448 4481 4488 4608 4623 4626 4634 4729 4754 4820 4862 4902 4947 5061 5098 5229 5234 5270 5306 5333 5375 5413 5439 5452 5515 5563 5696 5723 5739 5780 5848 6062 6106 6219 6238 6252 6258 6403 6425 6500 6579 6591 6628 6644 6647 6790 7168 7202 7291 7307 7312 7424 7447 7472 7964 8192 8228 8303 8305 8324 8343 8395 8515 8657 8829 8939 9046 9095 9252 9275 9278 9314 9440 9508 9523 9730 9806 9817 9827 9940 9946 9968 10061 10098 10103 10177 10188 10193 10257 10432 10436 10497 10571 10602 10609 10656 10753 10788 10802-10803 10856 10933 10939 10962 11092 11113 11268 11290 11319 11418 11498 11560 11765 11791 11794 11873 12563 12740 12888 13314 15278 16589 16644 16752 16798 16831 17190 17215 17239 17244 17257 17314 17317 17404 17510 17516 17662 17749 17757 17772 17778 17827 17836 17895 17898 17917 17999 18029 18084 18086 18091 18098 18112 18200 18210 18271 18366 18582 18642 18765 18769 18772 18790 18858 18943 19206 19408 19411 19490 19680 19682 19993 20010 20249 20384 20450 20516 20657 21012 21180 22593 22917 23016 23099 25245 25285 25294 25302 25307 25413 25427 25540 25677 25863 25986 26069 26088 26098 26109 26165-26166 26175 26196 26209 26245 26267 26280-26281 26288 26429 26453 26479 26533 26542 26553 26574 26586 26614 26882 26981 27022 27037 27053 27118 27161 27225-27226 27232 27237 27247-27248 27302 27396 27423 27437 27485 27508 27510 27526 27650 27687 27728 27747 27780 27833 27943 28034 28039 28042 28171 28281 28294 28419 28539 28614 28644 28669 31331 31547 31551 32438 32466 33746 33971 34044 34107 34210 34291 34379 34503 34691 34763 34809 35277 35570 35737 35751 35781 35842 35901 35995 36086 36151 36271 36346 36792 38639 38744 38878 39100 44724 46208 46529 46542 46651 46851 46856 48154 48474 49019 49086 49100 49103https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/452/4326?format=asciidefaultJ/MNRAS/452/4326/tablea1*DLA literature compilationSimbadNameSimbad column added by the CDSmeta.idcharQSOQSO namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintzemEmission redshiftsrc.redshiftfloatzabsAbsorption redshiftsrc.redshiftfloatlogN(HI)? HI column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(HI)? rms uncertainty on logN(NiII)log(cm**-2)stat.errorfloatnullablel_logN(NI)Limit flag on logN(NI)meta.code.errorcharlogN(NI)? NI column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(NI)? rms uncertainty on logN(NI)log(cm**-2)stat.errorfloatnullablel_logN(OI)Limit flag on logN(OI)meta.code.errorcharlogN(OI)? OI column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(OI)? rms uncertainty on logN(OI)log(cm**-2)stat.errorfloatnullablel_logN(MgI)Limit flag on logN(MgI)meta.code.errorcharlogN(MgI)? MgI column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(MgI)? rms uncertainty on logN(MgI)log(cm**-2)stat.errorfloatnullablel_logN(MgII)Limt flag on logN(MgII)meta.code.errorcharlogN(MgII)? MgII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(MgII)? rms uncertainty on logN(MgII)log(cm**-2)stat.errorfloatnullablel_logN(AlII)Limit flag on logN(AlII)meta.code.errorcharlogN(AlII)? AlII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(AlII)? rms uncertainty on logN(AlII)log(cm**-2)stat.errorfloatnullablel_logN(AlIII)Limit flag on logN(AlIII)meta.code.errorcharlogN(AlIII)? AlIII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(AlIII)? rms uncertainty on logN(AlIII)log(cm**-2)stat.errorfloatnullablel_logN(SiII)Limit flag on logN(SiII)meta.code.errorcharlogN(SiII)? SiII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(SiII)? rms uncertainty on logN(SiII)log(cm**-2)stat.errorfloatnullablel_logN(SII)Limit flag on logN(SII)meta.code.errorcharlogN(SII)? SII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(SII)? rms uncertainty on logN(SII)log(cm**-2)stat.errorfloatnullablelogN(CaII)? CaII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(CaII)? rms uncertainty on logN(CaII)log(cm**-2)stat.errorfloatnullablel_logN(TiII)Limit flag on logN(TiII)meta.code.errorcharlogN(TiII)? TiII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(TiII)? rms uncertainty on logN(TiII)log(cm**-2)stat.errorfloatnullablel_logN(CrII)Limit flag on logN(CrII)meta.code.errorcharlogN(CrII)? CrII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(CrII)? rms uncertainty on logN(CrII)log(cm**-2)stat.errorfloatnullablel_logN(MnII)Limit flag on logN(MnII)meta.code.errorcharlogN(MnII)? MnII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(MnII)? rms uncertainty on logN(MnII)log(cm**-2)stat.errorfloatnullablel_logN(FeII)Limit flag on logN(FeII)meta.code.errorcharlogN(FeII)? FeII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(FeII)? rms uncertainty on logN(FeII)log(cm**-2)stat.errorfloatnullablel_logN(CoII)Limit flag on logN(CoII)meta.code.errorcharlogN(CoII)? CoII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(CoII)? rms uncertainty on logN(CoII)log(cm**-2)stat.errorfloatnullablel_logN(NiII)Limit flag on logN(NiII)meta.code.errorcharlogN(NiII)? NiII column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(NiII)? rms uncertainty on logN(NiII)log(cm**-2)stat.errorfloatnullablel_logN(ZnII)Limit flag on logN(ZnII)meta.code.errorcharlogN(ZnII)? NI column densitylog(cm**-2)phys.columnDensityfloatnullablee_logN(ZnII)? rms uncertainty on logN(ZnII)log(cm**-2)stat.errorfloatnullableRefReferences, in refs.dat filemeta.ref;meta.filechar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullableJ/MNRAS/452/4326/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharJ/MNRAS/452/4326/tablea2Stellar literature compilation[Cr/H]? Cr abundance (1)phys.abundfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharGalHost Galaxysrc.class.starGalaxycharCompGalaxy componentmeta.code.multipchar[O/H]? O abundance (1)phys.abundfloatnullable[Mg/H]? Mg abundance (1)phys.abundfloatnullable[Al/H]? Al abundance (1)phys.abundfloatnullable[Si/H]? Si abundance (1)phys.abundfloatnullable[S/H]? S abundance (1)phys.abundfloatnullable[Ca/H]? Ca abundance (1)phys.abundfloatnullable[Ti/H]? Ti abundance (1)phys.abundfloatnullable[Mn/H]? Mn abundance (1)phys.abundfloatnullable[Fe/H]? Fe abundance (1)phys.abundfloatnullable[Co/H]? Co abundance (1)phys.abundfloatnullable[Ni/H]? Ni abundance (1)phys.abundfloatnullable[Zn/H]? Zn abundance (1)phys.abundfloatnullableRefReferences (2)meta.refchar