J/ApJ/734/65ivo://CDS.VizieR/J/ApJ/734/65doi:10.26093/cds/vizier.17340065CDSJenkins E.B.Tripp T.M.2018-01-04T08:22:16Z2013-01-07T09:21:44ZCDS support team

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

cds-question@unistra.frinterstellar-mediumspectroscopyultraviolet-astronomyradial-velocityWe analyzed absorption features arising from interstellar neutral carbon that appeared in the UV spectra of 89 stars recorded in the highest resolution echelle modes of the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope so that we could determine the relative populations of collisionally excited fine-structure levels in the atom's electronic ground state. From this information, in combination with molecular hydrogen rotation temperatures, we derive the distribution of thermal pressures in the diffuse, cold neutral medium (CNM). We find a lognormal pressure distribution (weighted by mass) with a mean in log(p/k) equal to 3.58 and an rms dispersion of at least 0.175dex that plausibly arises from turbulence with a characteristic Mach number in the range 1<M<4.2011ApJ...734...65Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/734/65CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/ApJS/187/149 : StarCAT: STIS UV echelle spectra of stars (Ayres, 2010)J/ApJ/711/1236 : Equivalent width of H_2_ from FUSE (Jensen+, 2010)J/ApJ/724/1389 : Mapping the diffuse UV sky with GALEX (Murthy+, 2010)J/ApJ/702/1472 : Column densities for HI, AlIII, SiIV, CIV, OVI (Savage+, 2009)J/ApJ/700/1299 : Gas-phase element depletions in the ISM (Jenkins, 2009)J/ApJS/176/59 : FUSE survey of OVI in the disk of the Milky Way (Bowen+, 2008)J/MNRAS/358/563 : Diffuse Interstellar Bands in 49 stars (Megier+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/734/65https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/734/65http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/734/65https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/734/65https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/734/65http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/734/65GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/734/65/table2 (Properties of the sight lines)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/734/65/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/734/65/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/734/65/table2?GETtext/xml+votable180.050000true161.1971125-59.73145280.0055555555555555566/1060 1196 1539 1554 2619 2909 3053 3066 3214 8547 9696 13255 14179 14197 14220 14240 14311 14643 14805 15376 15392 15478 15479 15580 15611 15631 15662 15663 15745 15768 18928 21439 22033 22854 23010 23673 23998 24139 24513 25988 25993 28891 28959 29040 29600 30709 36944 36959 37145 37209 37323 37333 37763 37822 37871 37877 37893 37930 38016 38024 39374 41103 41510 41598 41646 41653 41655 41692 41696 41698 42214 42417 42609 42748 42791 42947 42994 43011 43028 43033 43040 43045 44319 45105https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/734/65?format=asciiUVOpticaldefaultJ/ApJ/734/65/table2Properties of the sight linesDistDistance (1)kpcpos.distance;pos.heliocentricfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarTarget star identificationmeta.id;meta.maincharprimaryONameOther identificationmeta.idcharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatSpTMK spectral typesrc.spTypecharE(B-V)B-V color excess (1)magphot.color.excessfloatH2T? Molecular hydrogen rotational temperature from J=0 to 1 (2)Kphys.temperatureintnullabler_H2T? H2T reference (3)meta.ref;pos.frameintnullableObsArchive exposure root name(s)meta.id;meta.datasetcharSimbadSimbad column added by the CDSmeta.refchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/ApJ/734/65/table4Observed and calculated quantities in specific velocity channelsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarTarget star namemeta.id;meta.maincharRVelRadial Velocitykm/sspect.dopplerVelocfloatf1f1 quantity (1)phys.density;arith.ratiofloate_f1The 1{sigma} error in f1stat.errorfloatf2f2 quantity (1)phys.density;arith.ratiofloate_f2The 1{sigma} error in f2stat.errorfloatN(CIt)Column density of CI in all 3 levelscm**-2phys.columnDensitydoubleN(CII)? Inferred column density of CIIcm**-2phys.columnDensitydoublenullableg(low)? Fraction of CI at low pressurephys.density;arith.ratiofloatnullablelog(p/k)? log(p/k) of the low pressure fractionlog(cm**-3.K)phys.pressurefloatnullablelog(I/I0)? Log starlight intensity relative to standard specified by Mathis et al. 1983A&A...128..212Mphys.luminosity;arith.ratiofloatnullable