J/ApJ/897/83ivo://CDS.VizieR/J/ApJ/897/83doi:10.26093/cds/vizier.18970083CDSRitchey A.M.Jenkins E.B.Federman S.R.Rice J.S.Caprioli D.,Wallerstein G.2023-12-19T10:24:07Z2021-10-12T07:50:21ZCDS support team

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

cds-question@unistra.frsupernova-remnantschemical-abundancesinterstellar-mediumspectroscopyultraviolet-astronomyvisible-astronomyWe present the results of a detailed investigation into the physical conditions in interstellar material interacting with the supernova remnant (SNR) IC443. Our analysis is based on a comprehensive examination of high-resolution far-ultraviolet spectra obtained with the Space Telescope Imaging Spectrograph onboard the Hubble Space Telescope of two stars behind IC443. One of our targets (HD43582) probes gas along the entire line of sight through the SNR, while the other (HD254755) samples material located ahead of the primary supernova shock front. We identify low-velocity quiescent gas in both directions and find that the densities and temperatures in these components are typical of diffuse atomic and molecular clouds. Numerous high- velocity components are observed in the absorption profiles of neutral and singly ionized atomic species toward HD43582. These components exhibit a combination of greatly enhanced thermal pressures and significantly reduced dust-grain depletions. We interpret this material as cooling gas in a recombination zone far downstream from shocks driven into neutral gas clumps. The pressures derived for a group of ionized gas components at high positive velocity toward HD43582 are lower than those of the other shocked components, pointing to pressure inhomogeneities across the remnant. A strong, very high velocity component near -620km/s is seen in the absorption profiles of highly ionized species toward HD43582. The velocity of this material is consistent with the range of shock velocities implied by observations of soft thermal X-ray emission from IC443. Moderately high velocity gas toward HD254755 may represent shocked material from a separate foreground SNR.2020ApJ...897...83Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/897/83CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/349 : StarHorse, Gaia DR2 photo-astrometric distances (Anders+, 2019)J/A+A/279/541 : Sub-mm observations of SNR IC 443 (van Dishoeck+ 1993)J/A+AS/123/159 : IRON Project. XXII. C and O radiative rates (Galavis+ 1997)J/ApJS/147/61 : Interstellar Ca I absorption (Welty+, 2003)J/ApJS/167/334 : Radiative recombination data for plasmas (Badnell+, 2006)J/ApJS/168/213 : Ionization states and cooling efficiencies (Gnat+, 2007)J/ApJ/700/1299 : Gas-phase element depletions in the ISM (Jenkins, 2009)J/ApJ/734/65 : CI radial velocities with HST/STIS (Jenkins+, 2011)J/ApJ/728/70 : The abundance of boron in diffuse clouds (Ritchey+, 2011)J/ApJ/788/122 : IR photometry of YSO candidates toward SNR IC 443 (Su+, 2014)J/ApJS/224/8 : The first Fermi LAT SNR catalog (1SC) (Acero+, 2016)J/ApJS/229/34 : Effects of preionization radiative shocks (Sutherland+, 2017)J/A+A/612/A3 : HESS Galactic supernova remnants (Hess+, 2018)J/ApJS/236/36 : Ga, Ge, As, Kr, Cd, Sn and Pb column densities (Ritchey+,2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/897/83https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/897/83http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/897/83https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/897/83https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/897/83http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/897/83GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/897/83/table1 (Summary of HST/STIS observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/897/83/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/897/83/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/897/83/table1?GETtext/xml+votable180.050000true94.501458122.65833750.005555555555555556Cone search capability for table J/ApJ/897/83/tabled2 (Detailed component structure from HET/HRS spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/897/83/tabled2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/897/83/tabled2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/897/83/tabled2?GETtext/xml+votable180.050000true94.501458122.65833750.0055555555555555566/23995https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/897/83?format=asciiUVOpticaldefaultJ/ApJ/897/83/table1Summary of HST/STIS observationsSetData setmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStellar identifiermeta.id;meta.maincharprimarySpTSpectral typesrc.spTypecharVmag[8.79/8.91] V-band magnitudemagphot.mag;em.opt.VfloatE(B-V)[0.55/0.7] B-V colormagphot.color.excessfloatDist[2/3.6] Distancekpcpos.distancefloatTexp[12807] Exposure timestime.duration;obs.exposureintWave[1307] Centrale wavelength of exposition ({AA})0.1nmem.wlintGratingGratingmeta.notecharSlitSlitarcsecinstr.setupcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.mainJ/ApJ/897/83/table5Observed and calculated quantities obtained for individual velocity channelsStarStellar identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintV*[-54.5/53.5] Velocitykm/sphys.velocfloatOI*/OI**[0.7/2.16] Column density ratio of first to second excited level of OIphys.density;arith.ratiofloate_OI*/OI**[0.09/0.63] Uncertainty in OI*/OI**stat.errorfloat[OI*+OI**/Otot][-4.38/-1.71] log ratio of first + second excited levels of OI to total O abundancephys.density;arith.ratiofloate_[OI*+OI**/Otot][0.04/0.12] Uncertainty in [OI*+OI**/Otot]stat.errorfloat[SiII*/SiII][-3.58/-1.21] log ratio of excited to ground level of SiIIphys.density;arith.ratiofloate_[SiII*/SiII][0.06/0.18] Uncertainty in [SiII*/SiII]stat.errorfloat[Htot][0.63/3.94] log total H densitylog(cm**-3)phys.density;arith.ratiofloat[T][2.04/4.92] log kinetic temperaturelog(K)phys.temperaturefloat[p/k][4.33/7.12] log thermal pressurelog(cm**-3.K)phys.pressure;arith.zpfloat[ne][-1.82/2.09] log electron densitylog(cm**-3)phys.density;phys.electronfloatJ/ApJ/897/83/tabled1Detailed component structure from HST/STIS spectraStarStellar identifiermeta.id;meta.maincharOI**v[-56.3/51.3]? Second excited OI level velocitykm/sphys.velocfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSiII*v[-98.3/96.4]? Excited SiII level velocitykm/sphys.velocfloatnullable[SiII*][11.23/13.29]? log excited SiII level column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[SiII*][0.03/0.23]? Uncertainty in logSiII*log(cm**-2)stat.errorfloatnullableSiII*b[1.3/6.7]? Excited SiII level b-valuekm/sspect.dopplerParamfloatnullableOI*v[-54.4/52.0]? First excited OI level velocitykm/sphys.velocfloatnullable[OI*][12.63/14.2]? log first excited OI level column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[OI*][0.04/0.18]? Uncertainty in logOI*log(cm**-2)stat.errorfloatnullableOI*b[1.6/4.5]? First excited OI level b-valuekm/sspect.dopplerParamfloatnullable[OI**][12.47/14.12]? log second excited OI level column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[OI**][0.04/0.15]? Uncertainty in logOI**log(cm**-2)stat.errorfloatnullableOI**b[1.6/5.9]? Second excited OI level b-valuekm/sspect.dopplerParamfloatnullableSIIv[-54.0/56.0]? SII velocitykm/sphys.velocfloatnullablef_[SII][s] Indicates SII component is saturatedmeta.codechar[SII][13.8/14.95]? log SII column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[SII][0.07/0.15]? Uncertainty in [SII]log(cm**-2)stat.errorfloatnullableSIIb[1.7/4.8]? SII b-valuekm/sspect.dopplerParamfloatnullableNiIIv[-53.9/29.6]? NiII velocitykm/sphys.velocfloatnullable[NiII][11.64/13.54]? log NiII column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[NiII][0.03/0.41]? Uncertainty in [NiII]log(cm**-2)stat.errorfloatnullableNiIIb[1.9/7.3]? NiII b-valuekm/sspect.dopplerParamfloatnullableMgIIv[-1.6/30.3]? MgII velocitykm/sphys.velocfloatnullable[MgII][14.56/16.53]? log MgII column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[MgII][0.04/0.14]? Uncertainty in [MgII]log(cm**-2)stat.errorfloatnullableMgIIb[1.2/4.1]? MgII b-valuekm/sspect.dopplerParamfloatnullableOIv[2.0/31.0]? OI velocitykm/sphys.velocfloatnullable[OI][17.18/18.15]? log OI column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[OI][0.03/0.16]? Uncertainty in [OI]log(cm**-2)stat.errorfloatnullableOIb[1.6/4.8]? OI b-valuekm/sspect.dopplerParamfloatnullableCIv[-48.1/52.2]? CI velocitykm/sphys.velocfloatnullable[CI][11.77/15.02]? log CI column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[CI][0.02/0.11]? Uncertainty in [CI]log(cm**-2)stat.errorfloatnullableCIb[0.2/3.4]? C I b-valuekm/sspect.dopplerParamfloatnullableCI*v[-48.1/52.2]? First excited CI level velocitykm/sphys.velocfloatnullable[CI*][11.04/14.67]? log first excited CI level column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[CI*][0.02/0.62]? Uncertainty in [CI*]log(cm**-2)stat.errorfloatnullableCI*b[0.2/3.4]? First excited CI level b-valuekm/sspect.dopplerParamfloatnullableCI**v[-48.1/52.2]? Second excited CI level velocitykm/sphys.velocfloatnullable[CI**][12.0/14.51]? log second excited CI level column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[CI**][0.02/0.13]? Uncertainty in [CI**]log(cm**-2)stat.errorfloatnullableCI**b[0.2/3.4]? Second excited CI level b-valuekm/sspect.dopplerParamfloatnullableClIv[-26.6/49.6]? ClI velocitykm/sphys.velocfloatnullable[ClI][11.68/14.93]? log ClI column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[ClI][0.04/0.33]? Uncertainty in [ClI]log(cm**-2)stat.errorfloatnullableClIb[0.5/4.5]? ClI b-valuekm/sspect.dopplerParamfloatnullableSIv[-8.4/25.5]? SI velocitykm/sphys.velocfloatnullable[SI][12.27/14.49]? log SI column densitylog(cm**-2)phys.density;arith.ratiofloatnullablee_[SI][0.04/0.11]? Uncertainty in [SI]log(cm**-2)stat.errorfloatnullableSIb[0.5/2.2]? SI b-valuekm/sspect.dopplerParamfloatnullableJ/ApJ/897/83/tabled2Detailed component structure from HET/HRS spectrae_[CaII][0.03/0.1]? Uncertainty in [CaII]log(cm**-2)stat.errorfloatnullableCaIIb[1.2/9.2]? CaII b-valuekm/sspect.dopplerParamfloatnullableCaIv[-84.6/54.6]? CaI velocitykm/sphys.velocfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStellar identifiermeta.id;meta.maincharCaIIv[-104.1/99.4]? CaII velocitykm/sphys.velocfloatnullablef_[CaII][n] Indicates CaII data is not availablemeta.codechar[CaII][10.59/13.16]? log Ca II column densitylog(cm**-2)phys.columnDensityfloatnullable[CaI][8.84/11.14]? log CaI column densitylog(cm**-2)phys.columnDensityfloatnullablee_[CaI][0.02/0.27]? Uncertainty in [CaI]log(cm**-2)stat.errorfloatnullableCaIb[0.3/4.3]? CaI b-valuekm/sspect.dopplerParamfloatnullableNaIv[-102.6/55.2]? NaI velocitykm/sphys.velocfloatnullablef_[NaI][s] Indicates NaI component is saturatedmeta.codechar[NaI][10.22/12.55]? log NaI column densitylog(cm**-2)phys.columnDensityfloatnullablee_[NaI][0.01/0.04]? Uncertainty in [NaI]log(cm**-2)stat.errorfloatnullableNaIb[0.6/8.6]? NaI b-valuekm/sspect.dopplerParamfloatnullableKIv[-67.9/28.7]? KI velocitykm/sphys.velocfloatnullable[KI][9.58/12.84]? log KI column densitylog(cm**-2)phys.columnDensityfloatnullablee_[KI][0.01/0.16]? Uncertainty in [KI]log(cm**-2)stat.errorfloatnullableKIb[0.3/3.5]? KI b-valuekm/sspect.dopplerParamfloatnullableCH+v[-74.2/25.6]? CH+ velocitykm/sphys.velocfloatnullable[CH+][12.1/13.58]? log CH+ column densitylog(cm**-2)phys.columnDensityfloatnullablee_[CH+][0.01/0.19]? Uncertainty in [CH+]log(cm**-2)stat.errorfloatnullableCH+b[0.3/3.5]? CH+ b-valuekm/sspect.dopplerParamfloatnullableCHv[-50.9/26.1]? [CH] velocitykm/sphys.velocfloatnullable[CH][11.93/13.7]? log CH column densitylog(cm**-2)phys.columnDensityfloatnullablee_[CH][0.01/0.13]? Uncertainty in [CH]log(cm**-2)stat.errorfloatnullableCHb[0.3/3.5]? CH b-valuekm/sspect.dopplerParamfloatnullable_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.main