J/ApJ/727/46ivo://CDS.VizieR/J/ApJ/727/46doi:10.26093/cds/vizier.17270046CDSLehner N.Zech W.F.Howk J.C.Savage B.D.2017-06-13T11:09:01Z2012-09-14T07:25:23ZCDS support team

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

cds-question@unistra.frob-starsultraviolet-astronomymilky-way-galaxyinterstellar-mediumThe cooling transition temperature gas in the interstellar medium (ISM), traced by the high ions, SiIV, CIV, NV, and OVI, helps to constrain the flow of energy from the hot ISM with T>10^6^K to the warm ISM with T<2x10^4^K. We investigate the properties of this gas along the lines of sight to 38 stars in the Milky Way disk using 1.5-2.7km/s resolution spectra of SiIV, CIV, and NV absorption from the Space Telescope Imaging Spectrograph, and 15km/s resolution spectra of OVI absorption from the Far Ultraviolet Spectroscopic Explorer. The absorption by SiIV and CIV exhibits broad and narrow components while only broad components are seen in NV and OVI. The narrow components imply gas with T<7x10^4^K and trace two distinct types of gas.2011ApJ...727...46Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/727/46CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/116 : Galactic O star catalog (Maiz-Apellaniz+, 2004)J/ApJ/702/1472 : Column densities for HI, AlIII, SiIV, CIV, OVI (Savage+, 2009)J/ApJS/176/59 : FUSE survey of OVI in the disk of the Milky Way (Bowen+, 2008)J/ApJ/647/312 : FUSE survey of OVI in the Milky Way (Otte+, 2006)J/ApJS/136/631 : IUE absorption toward 164 early-type stars (Savage+, 2001)J/AJ/117/354 : OB associations from Hipparcos (de Zeeuw+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/727/46https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/727/46http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/727/46https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/727/46https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/727/46http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/727/46GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/727/46/sightlines (Sight lines: position, apparent column densities and ionic rations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/727/46/sightlines?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/727/46/sightlines?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/727/46/sightlines?GETtext/xml+votable180.050000true286.9073439-18.72625420.0055555555555555566/1196 2619 3214 13255 14179 14197 14805 15663 23800 25799 25988 28687 29040 36043 36944 37209 37333 37339 37893 37897 37900 37930 38016 38110 39931 41103 41598 41653 41692 42214 42417 42791 43040 44100https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/727/46?format=asciiUVdefaultJ/ApJ/727/46/table3Average LSR velocities and apparent column densitiesSeqStar identification numbermeta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identificationmeta.id;meta.maincharLoVelLower velocity interval profile integratedkm/sspect.dopplerVelocintUpVelUpper velocity interval profile integratedkm/sspect.dopplerVelocintIonIon identification and wavelengthphys.atmol.ionStageva? Average velocitykm/sspect.dopplerVelocfloatnullablee_va? Uncertainty in vakm/sstat.errorfloatnullablel_logNLimit flag on logN (1)meta.code.errorcharlogNLog apparent column densitylog(cm**-2)phys.columnDensityfloatu_logN[:] Uncertainty flag on logN (2)meta.code.errorcharE_logN? Upper level uncertainty in logNlog(cm**-2)stat.error;stat.maxfloatnullablee_logN? Lower level uncertainty in logNlog(cm**-2)stat.errorfloatnullableJ/ApJ/727/46/table6Results from the profile fitsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqStar identification numbermeta.idintNameStar identificationmeta.id;meta.maincharRR parameters from Bowen et al. 2008, Cat. J/ApJS/176/59 (existence of X-ray flux)meta.codecharIonIon identification (1)phys.atmol.ionStagecharNumComponent numbermeta.code.multipintVlsrLocal Standard of Rest velocitykm/sphys.veloc;pos.lsrfloate_VlsrUncertainty in Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatbDoppler parameterkm/sspect.dopplerParamfloatu_b[:] Uncertainty flag on b (2)meta.code.errorchare_b? Uncertainty in bkm/sstat.errorfloatnullablelogNLog apparent column densitylog(cm**-2)phys.columnDensityfloatu_logN[:] Uncertainty flag on logN (2)meta.code.errorchare_logN? Uncertainty in logNlog(cm**-2)stat.errorfloatnullableJ/ApJ/727/46/sightlinesSight lines: position, apparent column densities and ionic rationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning sequence numbermeta.idinte_N/O.d? Lower limit uncertainty in N/O.dstat.error;phys.abundfloatnullableNameStar identificationmeta.id;meta.maincharprimarySpTMK spectral typesrc.spTypecharr_SpTSpectral type reference (1)meta.ref;pos.frameintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatVmagV-band magnitudemagphot.mag;em.opt.VfloatDistDistance (d) from Bowen et al. (2008, Cat. J/ApJS/176/59) (2)kpcpos.distance;pos.heliocentricfloatZz-heightkpcpos.cartesian.z;pos.galacticfloatVcVelocity correction (v_c_) (3)km/sarith.factor;phys.velocfloatV*? Radial stellar velocity in the LSR frame (4)km/sspect.dopplerVeloc;pos.lsrintnullableRParameter R following Bowen et al. (2008, Cat. J/ApJS/176/59) (5)meta.codeintCommPhysical region along the line of sight (6)meta.notecharOCatCross-match with other catalogs within 5"meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharl_logNAlIIILimit flag on logNAlIII (7)meta.code.errorcharlogNAlIII? Log apparent AlIII column densitylog(cm**-2)phys.columnDensityfloatnullableE_logNAlIII? Upper limit uncertainty in logNAlIIIlog(cm**-2)stat.error;stat.maxfloatnullablee_logNAlIII? Lower limit uncertainty in logNAlIIIlog(cm**-2)stat.errorfloatnullablel_logNSiIVLimit flag on logNSiIV (7)meta.code.errorcharlogNSiIVLog apparent SiIV column densitylog(cm**-2)phys.columnDensityfloatE_logNSiIV? Upper limit uncertainty in logNSiIVlog(cm**-2)stat.error;stat.maxfloatnullablee_logNSiIV? Lower limit uncertainty in logNSiIVlog(cm**-2)stat.errorfloatnullablel_logNCIVLimit flag on logNCIV (7)meta.code.errorcharlogNCIVLog apparent CIV column densitylog(cm**-2)phys.columnDensityfloatE_logNCIV? Upper limit uncertainty in logNCIVlog(cm**-2)stat.error;stat.maxfloatnullablee_logNCIV? Lower limit uncertainty in logNCIVlog(cm**-2)stat.errorfloatnullablel_logNNVLimit flag on logNNV (7)meta.code.errorcharlogNNV? Log apparent NV column densitylog(cm**-2)phys.columnDensityfloatnullableu_logNNV[:] Uncertainty flag in logNV (8)meta.code.errorcharE_logNNV? Upper limit uncertainty in logNNVlog(cm**-2)stat.error;stat.maxfloatnullablee_logNNV? Lower limit uncertainty in logNNVlog(cm**-2)stat.errorfloatnullablel_logNOVILimit flag on logNOVI (7)meta.code.errorcharlogNOVI? Log apparent OVI column densitylog(cm**-2)phys.columnDensityfloatnullableE_logNOVI? Upper limit uncertainty in logNOVIlog(cm**-2)stat.error;stat.maxfloatnullablee_logNOVI? Lower limit uncertainty in logNOVIlog(cm**-2)stat.errorfloatnullablel_lognAlIIILimit flag on lognAlIII (7)meta.code.errorcharlognAlIII? Log average AlIII densitylog(cm**-3)phys.densityfloatnullablel_lognSiIVLimit flag on lognSiIV (7)meta.code.errorcharlognSiIVLog average SiIV densitylog(cm**-3)phys.densityfloatl_lognCIVLimit flag on lognCIV (7)meta.code.errorcharlognCIVLog average CIV densitylog(cm**-3)phys.densityfloatl_lognNVLimit flag on lognNV (7)meta.code.errorcharlognNV? Log average NV densitylog(cm**-3)phys.densityfloatnullablel_lognOVILimit flag on lognOVI (7)meta.code.errorcharlognOVI? Log average OVI densitylog(cm**-3)phys.densityfloatnullableAl/Si.d? AlIII/SiIV from column density (9)spect.line.intensity;arith.ratiofloatnullableE_Al/Si.d? Upper limit uncertainty in Al/Si.dstat.error;stat.maxfloatnullablee_Al/Si.d? Lower limit uncertainty in Al/Si.dstat.errorfloatnullablef_C/Si.dLimit flag on C/Si.d (10)meta.codecharC/Si.d? CIV/SiIV from column density (9)spect.line.intensity;arith.ratiofloatnullableE_C/Si.d? Upper limit uncertainty in C/Si.dstat.error;stat.maxfloatnullablee_C/Si.d? Lower limit uncertainty in C/Si.dstat.errorfloatnullablel_C/N.dLimit flag on C/N.d (10)meta.code.error;phys.abundcharC/N.d? CIV/NV from column density (9)spect.line.intensity;arith.ratiofloatnullableu_C/N.d[:] Uncertainty flag on C/N.d (11)meta.code.error;phys.abundcharE_C/N.d? Upper limit uncertainty in C/N.dstat.error;stat.maxfloatnullablee_C/N.d? Lower limit uncertainty in C/N.dstat.error;phys.abundfloatnullablel_N/O.dLimit flag on N/O.d (10)meta.code.error;phys.abundcharN/O.d? NV/OVI from column density (9)spect.line.intensity;arith.ratiofloatnullableu_N/O.d[:] Uncertainty flag on N/O.d (11)meta.code.error;phys.abundcharE_N/O.d? Upper limit uncertainty in N/O.dstat.error;stat.maxfloatnullablel_C/O.dLimit flag on C/O.d (10)meta.code.error;phys.abundcharC/O.d? CIV/OVI from column density (9)spect.line.intensity;arith.ratiofloatnullableE_C/O.d? Upper limit uncertainty in C/O.dstat.error;stat.maxfloatnullablee_C/O.d? Lower limit uncertainty in C/O.dstat.error;phys.abundfloatnullableAl/Si.p? AlIII/SiIV from column density profile (12)spect.line.intensity;arith.ratiofloatnullableE_Al/Si.p? Upper limit uncertainty in Al/Si.pstat.error;stat.maxfloatnullablee_Al/Si.p? Lower limit uncertainty in Al/Si.pstat.errorfloatnullableC/Si.p? CIV/SiIV from column density profile (12)spect.line.intensity;arith.ratiofloatnullableE_C/Si.p? Upper limit uncertainty in C/Si.pstat.error;stat.maxfloatnullablee_C/Si.p? Lower limit uncertainty in C/Si.pstat.errorfloatnullableC/N.p? CIV/NV from column density profile (12)spect.line.intensity;arith.ratiofloatnullableu_C/N.p[:] Uncertainty flag on C/N.p (11)meta.code.error;phys.abundcharE_C/N.p? Upper limit uncertainty in C/N.pstat.error;stat.maxfloatnullablee_C/N.p? Lower limit uncertainty in C/N.pstat.error;phys.abundfloatnullableN/O.p? NV/OVI from column density profile (12)spect.line.intensity;arith.ratiofloatnullableE_N/O.p? Upper limit uncertainty in N/O.pstat.error;stat.maxfloatnullablee_N/O.p? Lower limit uncertainty in N/O.pstat.error;phys.abundfloatnullableC/O.p? CIV/OVI from column density profile (12)spect.line.intensity;arith.ratiofloatnullableE_C/O.p? Upper limit uncertainty in C/O.pstat.error;stat.maxfloatnullablee_C/O.p? Lower limit uncertainty in C/O.pstat.error;phys.abundfloatnullable_RAPositions from Simbad database (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad database (declination part)degpos.eq.dec;meta.mainJ/ApJ/727/46/table1Data summaryAperAperture usedphys.angSize;instr.fovcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identificationmeta.id;meta.maincharSeqStar identification numbermeta.idintDatasetDataset identificationmeta.id;meta.datasetcharPIDPI/Proposal identificationmeta.id;obscharExpExposure timestime.duration;obs.exposureintGratGrating usedinstr.setupcharlam0[1141/1774] Wavelength range: lower bound0.1nminstr.bandwidthintlam1[1335/2046] Wavelength range: upper bound0.1nminstr.bandwidthint