J/other/Sci/345.ivo://CDS.VizieR/J/other/Sci/345.791CDSKos J.Zwitter T.Wyse R.Bienayme O.Binney J.Bland-Hawthorn J.,Freeman K.Gibson B. K.Gilmore G.Grebel E. K.Helmi A.,Kordopatis G.Munari U.Navarro J.Parker Q.Reid W.A.Seabroke G.,Sharma S.Siebert A.Siviero A.Steinmetz M.Watson F.G.,Williams M.E.K.2015-09-21T11:54:57Z2015-05-13T12:05:19ZCDS support team

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

cds-question@unistra.frinterstellar-mediumline-intensitiesextinctionThe diffuse interstellar bands (DIBs) are absorption lines observed in visual and near-infrared spectra of stars. Understanding their origin in the interstellar medium is one of the oldest problems in astronomical spectroscopy, as DIBs have been known since 1922. In a completely new approach to understanding DIBs, we combined information from nearly 500,000 stellar spectra obtained by the massive spectroscopic survey RAVE (Radial Velocity Experiment) to produce the first pseudo-three-dimensional map of the strength of the DIB at 8620 angstroms covering the nearest 3 kiloparsecs from the Sun, and show that it follows our independently constructed spatial distribution of extinction by interstellar dust along the Galactic plane. Despite having a similar distribution in the Galactic plane, the DIB 8620 carrier has a significantly larger vertical scale height than the dust. Even if one DIB may not represent the general DIB population, our observations outline the future direction of DIB research.2014Sci...345..791Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/Sci/345.791CatalogResearchIsServedByTAP VizieR generic servicerelated-toIII/272 : RAVE 4th data release (Kordopatis+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/Sci/345.791https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/Sci/345.791http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/Sci/345.791https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/Sci/345.791https://vizier.iucaa.in/viz-bin/votable?-source=J/other/Sci/345.791http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/Sci/345.791GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/other/Sci/345.791/northValues in bins of the northern galactic hemisphererecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintb_d[0/3] Lower distance edge of a binkpcpos.distance;stat.minfloatd[0/3] Distance midpoint of a bin (1)kpcpos.distance;pos.heliocentricfloatB_d[0/3] Upper distance edge of a binkpcpos.distance;stat.maxfloatb_l[0/6.29] Lower Galactic longitude edge of a binradpos.galactic.lonfloatl[0/6.29] Galactic longitude midpoint of a bin (2)degpos.galactic.lonfloatB_l[0/6.29] Upper Galactic longitude edge of a binradpos.galactic.lonfloatEW[0/2] Equivalent width of the DIB (diffuse interstellar interstellar band) at 862nm0.1nmspect.line.eqWidth;em.opt.Ifloate_EW[0.002/0.3] rms uncertainty on EW0.1nmstat.error;spect.line.eqWidthfloatAV[0.007/89] Extinction in V magnitudemagphys.absorption;em.opt.Vfloate_AV[0.0002/1.5] rms uncertainty on AVmagstat.errorfloatNsp[20/100] Number of spectra used to calculate values in this bin (3)meta.numberfloatRes[0.075/0.5] Resolution of the map in this binkpcpos.angResolution;obs.fieldfloatJ/other/Sci/345.791/southValues in bins of the southern galactic hemisphereB_d[0/3] Upper distance edge of a binkpcpos.distance;stat.maxfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintb_d[0/3] Lower distance edge of a binkpcpos.distance;stat.minfloatd[0/3] Distance midpoint of a bin (1)kpcpos.distance;pos.heliocentricfloatb_l[0/6.29] Lower Galactic longitude edge of a binradpos.galactic.lonfloatl[0/6.29] Galactic longitude midpoint of a bin (2)degpos.galactic.lonfloatB_l[0/6.29] Upper Galactic longitude edge of a binradpos.galactic.lonfloatEW[0/2] Equivalent width of the DIB (diffuse interstellar interstellar band) at 862nm0.1nmspect.line.eqWidth;em.opt.Ifloate_EW[0.002/0.3] rms uncertainty on EW0.1nmstat.error;spect.line.eqWidthfloatAV[0.007/89] Extinction in V magnitudemagphys.absorption;em.opt.Vfloate_AV[0.0002/1.5] rms uncertainty on AVmagstat.errorfloatNsp[20/100] Number of spectra used to calculate values in this bin (3)meta.numberfloatRes[0.075/0.5] Resolution of the map in this binkpcpos.angResolution;obs.fieldfloat