J/ApJS/257/63ivo://CDS.VizieR/J/ApJS/257/63doi:10.26093/cds/vizier.22570063CDSZuo W.Li A.Zhao G.2022-06-13T12:08:37Z2022-05-02T09:01:31ZCDS support team

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

cds-question@unistra.frinterstellar-mediumchemical-abundancesextinctionWhile it is well recognized that both the Galactic interstellar extinction curves and the gas-phase abundances of dust-forming elements exhibit considerable variations from one sight line to another, as yet most of the dust extinction modeling efforts have been directed to the Galactic average extinction curve, which is obtained by averaging over many clouds of different gas and dust properties. Therefore, any details concerning the relationship between the dust properties and the interstellar environments are lost. Here we utilize the wealth of extinction and elemental abundance data obtained by space telescopes and explore the dust properties of a large number of individual sight lines. We model the observed extinction curve of each sight line and derive the abundances of the major dust-forming elements (i.e., C, O, Si, Mg, and Fe) required to be tied up in dust (i.e., dust depletion). We then confront the derived dust depletions with the observed gas-phase abundances of these elements and investigate the environmental effects on the dust properties and elemental depletions. It is found that for the majority of the sight lines the interstellar oxygen atoms are fully accommodated by gas and dust and therefore there does not appear to be a "missing oxygen" problem. For those sight lines with an extinction-to-hydrogen column density A_V_/N_H_>~4.8x10^-22^mag.cm^2^.H^-1^ there are shortages of C, Si, Mg, and Fe elements for making dust to account for the observed extinction, even if the interstellar C/H, Si/H, Mg/H, and Fe/H abundances are assumed to be protosolar abundances augmented by Galactic chemical evolution.2021ApJS..257...63Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/257/63CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/93/211 : IUE survey of H I Ly{alpha} absorption. I. (Diplas+ 1994)J/ApJ/663/320 : IR-through-UV extinction curve (Fitzpatrick+, 2007)J/ApJ/700/1299 : Gas-phase element depletions in the ISM (Jenkins, 2009)J/ApJ/711/1236 : Equivalent width of H_2_ from FUSE (Jensen+, 2010)J/MNRAS/404/1321 : TiII in Milky way and Magellanic clouds (Welty+, 2010)J/ApJ/872/55 : OI, GeII, KrI & H abundances from HST UV sp. (Jenkins, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/257/63https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/257/63http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/257/63https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/257/63https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/257/63http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/257/63GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/257/63/sample (Extinction parameters (Table 1) and Hydrogen densities and gas-phase C, O, Mg, Si and Fe abundances (Table 2) for the interstellar sight lines in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/257/63/sample?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/257/63/sample?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/257/63/sample?GETtext/xml+votable180.050000true311.552734235.54043690.0055555555555555566/1060 1558 2909 3053 3247 3256 3384 3430 3585 13289 14240 14249 14311 14643 15369 15392 15406 15478-15479 15611 15631 15663 15745 19009 21439 22033 22249 22854-22855 23998 24338 24463 24513 28774 28796 29040 29089 29463 29522 29600 29828 29839 29876 30709 30818 37333 37871 37877 37893 37898 37900 37930 38016 38024 38074 39243 39281 39334 39374 41103 41692 41903 42126 42383 42394 42405 42470 42977 42994 43033 43040 44366 45105https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/257/63?format=asciidefaultJ/ApJS/257/63/sampleExtinction parameters (Table 1) and Hydrogen densities and gas-phase C, O, Mg, Si and Fe abundances (Table 2) for the interstellar sight lines in our sampler_NHI[1/79] Reference code for NHI (see refs.dat file)meta.ref;pos.frameintSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintModDisplay the model parameters for this star (link to Table 3)meta.ref.urlcharStarIdentifiermeta.id;meta.maincharprimaryAv[0.5/2.8] The V band extinction (2)magphys.absorptionfloate_Av[0.09/0.5] Uncertainty in AV (2)magstat.errorfloatE(B-V)[0.2/0.8] The (B-V) color excess (2)magphot.color.excessfloate_E(B-V)[0.02/0.2] Uncertainty in E(B-V) (2)magstat.errorfloatRv[2/5.9] Total-to-selective extinction ratio (2)phys.absorption.gal;arith.ratiofloate_Rv[0.1/0.7] Uncertainty in Rv (2)stat.errorfloatAU[0.9/3.7]? The U band extinctionmagphys.absorptionfloatnullableAB[0.8/3.4]? The B band extinctionmagphys.absorptionfloatnullableAJ[0.08/0.8]? The J band extinctionmagphys.absorptionfloatnullableAH[0.05/0.5]? The H band extinctionmagphys.absorptionfloatnullableAK[0.06/0.3]? The K band extinctionmagphys.absorptionfloatnullablef_Star[12] Flag on Star (1)meta.codecharc1p[0.06/1.9] The c_1_' extinction parameter (2)phys.absorption.coefffloate_c1p[0.02/2.1] Uncertainty in c1' (2)stat.errorfloatc2p[0/0.8] The c_2_' extinction parameter (2)phys.absorption.coefffloate_c2p[0.002/0.2] Uncertainty in c2' (2)stat.errorfloatc3p[0.2/2.3] The c_3_' extinction parameter (2)phys.absorption.coefffloate_c3p[0.04/0.6] Uncertainty in c3' (2)stat.errorfloatc4p[0.007/0.6] The c_4_' extinction parameter (2)phys.absorption.coefffloate_c4p[0.007/0.2] Uncertainty in c4' (2)stat.errorfloatx0[4.5/4.7] The x_0_ extinction parameter (2)cm**-1phys.absorption.coefffloate_x0[0.003/0.05] Uncertainty in x0 (2)cm**-1stat.errorfloatgamma[0.6/1.4] The {gamma} extinction parameter (2)cm**-1phys.absorption.coefffloate_gamma[0.01/0.1] Uncertainty in gamma (2)cm**-1stat.errorfloatNH[1/6.92] Total hydrogen column density1e+21cm**-2phys.columnDensityfloate_NH[0.03/3.1] Lower uncertainty in NH1e+21cm**-2stat.errorfloatE_NH[0.03/3.1] Upper uncertainty in NH1e+21cm**-2stat.error;stat.maxfloatr_NH[1/25] Reference code for NH (see refs.dat file)meta.ref;pos.frameintf(H2)[0.04/0.93]? Fraction of hydrogen in molecular formphys.abund.X;arith.ratiofloatnullableNHI[0.4/5.9] Atomic hydrogen column density1e+21cm**-2phys.columnDensityfloate_NHI[0/3.1]? Lower uncertainty in NHI1e+21cm**-2stat.errorfloatnullableE_NHI[0/3.1]? Upper uncertainty in NHI1e+21cm**-2stat.error;stat.maxfloatnullableNH2[0.04/3.1]? Molecular hydrogen column density1e+21cm**-2phys.columnDensityfloatnullablee_NH2[0/0.5]? Lower uncertainty in NH21e+21cm**-2stat.error;phys.columnDensityfloatnullableE_NH2[0/0.44]? Upper uncertainty in NH21e+21cm**-2stat.error;stat.maxfloatnullabler_NH2[1/33]? Reference code for NH2 (see refs.dat file)meta.ref;pos.frameintnullable[C/H]gas[79/427]? Gas-phase C/H abundance(10-6)phys.abundfloatnullablee_[C/H]gas[14/104]? Uncertainty in [C/H](10-6)stat.error;phys.abundfloatnullabler_[C/H]gas[11/34]? Reference code for [C/H] (see refs.dat file)meta.ref;pos.frameintnullable[O/H]gas[40/2292]? Gas-phase O/H abundance(10-6)phys.abundfloatnullablee_[O/H]gas[22/1889]? Uncertainty in [O/H](10-6)stat.error;phys.abundfloatnullabler_[O/H]gas[1/24]? Reference code for [O/H] (see refs.dat file)meta.ref;pos.frameintnullable[Mg/H]gas[1/19]? Gas-phase Mg/H abundance(10-6)phys.abundfloatnullablee_[Mg/H]gas[0.16/8]? Uncertainty in [Mg/H](10-6)stat.error;phys.abundfloatnullabler_[Mg/H]gas[1/23]? Reference code for [Mg/H] (see refs.dat file)meta.ref;pos.frameintnullable[Si/H]gas[0.06/18]? Gas-phase Si/H abundance(10-6)phys.abundfloatnullablee_[Si/H]gas[0.01/659]? Uncertainty in [Si/H](10-6)stat.error;phys.abundfloatnullabler_[Si/H]gas[2/12]? Reference code for [Si/H] (see refs.dat file)meta.ref;pos.frameintnullable[Fe/H]gas[0.03/1.8]? Gas-phase Fe/H abundance(10-6)phys.abund.Fefloatnullablee_[Fe/H]gas[0/77]? Uncertainty in [Fe/H](10-6)stat.error;phys.abund.Fefloatnullabler_[Fe/H]gas[4/28]? Reference code for [Fe/H] (see refs.dat file)meta.refintnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJS/257/63/table3Model parameters for fitting the UV/Optical/Near-IR extinction with a mixture of silicate and graphite grainsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarIdentifiermeta.id;meta.maincharchi2[0.001/0.003] Model {chi}^2^stat.param;meta.modelledfloatAv/NH[3.3/8.72] The A_V_ to N_H_ ratio; in units of 10^-22^mag.cm^2^.H^-1^phys.absorption;phys.columnDensity;arith.ratiofloatalphaS[1.26/3.6] Silicate grain power indexstat.fit.paramfloatacS[0.1/0.3] Silicate grain exponential cutoff sizeumphys.angSizefloatalphaC[2.18/4.1] Graphite grain power indexstat.fit.paramfloatacC[0.06/0.6] Graphite grain exponential cutoff sizeumphys.angSizefloat[C/H]dust[45/244] Carbon depletion(10-6)phys.abundint[Si/H]dust[29/85] Silicon depletion(10-6)phys.abundintJ/ApJS/257/63/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.noteintBibCodeBibcode of the referencemeta.bib.bibcodecharAuthFirst author's name(s)meta.bib.authorcharCommVizieR catalog referencemeta.id;meta.datasetchar