J/MNRAS/399/195ivo://CDS.VizieR/J/MNRAS/399/195doi:10.26093/cds/vizier.73990195CDSvan Loon J.T.Smith K.T.McDonald I.Sarre P.J.Fossey S.J.,Sharp R.G.2024-07-09T20:15:50Z2010-11-15T13:07:53ZCDS support team

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

cds-question@unistra.frglobular-star-clustershorizontal-branch-starsline-intensitiesvisible-astronomyspectroscopyThe multiphase interstellar medium (ISM) is highly structured, on scales from the size of the Solar System to that of a galaxy. In particular, small-scale structures are difficult to study and hence are poorly understood. We used the multiplex capabilities of the AAOmega spectrograph at the Anglo-Australian Telescope to create a half-square-degree map of the neutral and low-ionized ISM in front of the nearby (~5kpc), most massive Galactic globular cluster, {omega} Centauri. Its redshifted, metal-poor and hot horizontal branch stars probe the medium-strong CaII K and NaI D2 line absorption, and weak absorption in the {lambda}5780 and {lambda}5797 diffuse interstellar bands (DIBs), on scales around a parsec. The kinematical and thermodynamical picture emerging from these data is that we predominantly probe the warm neutral medium and weakly ionized medium of the Galactic Disc-Halo interface, ~0.3-1kpc above the mid-plane. A comparison with Spitzer Space Telescope 24um and DIRBE/IRAS maps of the warm and cold dust emission confirms that both NaI and CaII trace the overall column density of the warm neutral and weakly ionized medium. Clear signatures are seen of the depletion of calcium atoms from the gas phase into dust grains.2009MNRAS.399..195Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/399/195CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/360/472 : Proper motions in omega Centauri (van Leeuwen+, 2000)J/MNRAS/382/1353 : Spectral atlas of omega Cen post-MS stars (Van Loon+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/399/195https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/399/195http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/399/195https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/399/195https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/399/195http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/399/195GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/399/195/table1 (Catalogue of observed stars in {omega} Cen, plus the 8 stars not used in the analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/399/195/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/399/195/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/399/195/table1?GETtext/xml+votable180.050000true201.06673-47.459810.0055555555555555566/43225 43227https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/399/195?format=asciiOpticaldefaultJ/MNRAS/399/195/table1Catalogue of observed stars in {omega} Cen, plus the 8 stars not used in the analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLEIDLEID number (Van Leeuwen et al., 2000, Cat. J/A+A/360/472, <Cl* NGC 5139 LEID NNNNN> in Simbad)meta.id;meta.mainintn_LEID[*] * for the six stars having spectra but not used in the analysis (just name and position)meta.notecharspSpectrum plotmeta.ref.urlcharE(B-V)? Redenning E(B-V) from the DIRBE/IRAS maps of Schlegel et al., 1998ApJ...500..525Smagphot.color.excessdoublenullableVCa? CaII K central velocity with respect to the Local Standard of Restkm/sphys.veloc;pos.lsrfloatnullableDCa? CaII K line width0.1pmspect.line.width;em.IR.KfloatnullableWCa? CaII K equivalent width0.1pmspect.line.eqWidth;em.IR.Kfloatnullablee_WCa? Error on WCa0.1pmstat.errorfloatnullableVNa? NaI D2 central velocity with respect to the Local Standard of Restkm/sphys.veloc;pos.lsrfloatnullableDNa? NaI D2 line width0.1pmspect.line.widthfloatnullableWNa? NaI D2 equivalent width0.1pmspect.line.eqWidthfloatnullablee_WNa? Error on WNa0.1pmstat.errorfloatnullableW5780? Equivalent width of the lambda5780 DIB0.1pmspect.line.eqWidthfloatnullablee_W5780? Error on W57800.1pmstat.errorfloatnullableW5797? Equivalent width of the lambda5797 DIB0.1pmspect.line.eqWidthfloatnullablee_W5797? Error on W57970.1pmstat.errorfloatnullableRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.main