J/ApJ/857/59ivo://CDS.VizieR/J/ApJ/857/59doi:10.26093/cds/vizier.18570059CDSSimpson J.P.2019-03-26T11:46:58Z2019-03-20T09:53:18ZCDS support team

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

cds-question@unistra.frgalactic-centerinfrared-astronomyspectroscopyinterstellar-mediumIt has long been shown that the extreme ultraviolet spectrum of the ionizing stars of HII regions can be estimated by comparing the observed line emission to detailed models. In the Galactic Center (GC), however, previous observations have shown that the ionizing spectral energy distribution (SED) of the local photon field is strange, producing both very low excitation ionized gas (indicative of ionization by late O stars) and also widespread diffuse emission from atoms too highly ionized to be found in normal HII regions. This paper describes the analysis of all GC spectra taken by Spitzer's Infrared Spectrograph and downloaded from the Spitzer Heritage Archive. In it, HII region densities and abundances are described, and serendipitously discovered candidate planetary nebulae, compact shocks, and candidate young stellar objects are tabulated. Models were computed with Cloudy, using SEDs from Starburst99 plus additional X-rays, and compared to the observed mid-infrared forbidden and recombination lines. The ages inferred from the model fits do not agree with recent proposed star formation sequences (star formation in the GC occurring along streams of gas with density enhancements caused by close encounters with the black hole, Sgr A*), with Sgr B1, Sgr C, and the Arches Cluster being all about the same age, around 4.5Myr old, with similar X-ray requirements. The fits for the Quintuplet Cluster appear to give a younger age, but that could be caused by higher-energy photons from shocks from stellar winds or from a supernova.2018ApJ...857...59Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/857/59CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVI/64 : Recombination line intensities for hydrogenic ions (Storey+ 1995)J/ApJ/581/258 : Infrared photometry in the Arches Cluster (Figer+, 2002)J/A+A/418/363 : Effective collision strengths for Cl II (Tayal+, 2004)J/ApJS/155/421 : Survey of Galactic Center region at 20cm (Yusef-Zadeh+, 2004)J/ApJS/165/173 : Chandra sources in Galaxy central 150pc (Muno+, 2006)J/ApJS/162/346 : Abundance gradients in the Galaxy (Rudolph+, 2006)J/A+A/453/535 : Classification of bright mid-IR sources (Schuller+, 2006)J/ApJ/661/801 : Survey for ionization in neutral gas gal. III. (Oey+, 2007)J/ApJ/670/1115 : IRS spectra at 38 positions in GC (Simpson+, 2007)J/ApJ/656/770 : Mid-IR spectrum of star-forming galaxies (Smith+, 2007)J/ApJ/693/1821 : The Spitzer infrared nearby galaxies survey (Dale+, 2009)J/ApJS/181/110 : Galactic center X-ray sources (Muno+, 2009)J/A+A/500/1253 : Electron-impact excitation of ArIII (Munoz Burgos+, 2009)J/A+A/495/157 : Interstellar extinction in GC (Schultheis+, 2009)J/ApJ/736/133 : Spitzer-IRS study of massive YSOs in GC (An+, 2011)J/MNRAS/417/114 : HST/NICMOS Galactic Center survey catalogue (Dong+, 2011)J/ApJ/737/73 : Infrared extinction toward the Galactic Centre (Fritz+, 2011)J/A+A/537/A146 : Stellar models with rotation. 0.8<M<120 (Ekstrom+, 2012)J/A+A/547/A87 : B-like iso-electronic sequence (Liang+, 2012)J/ApJ/755/40 : HII reg. in Magellanic clouds from MCELS (Pellegrini+, 2012)J/ApJ/780/110 : SIII collision strengths (Grieve+, 2014)J/ApJ/783/130 : Parallaxes of high mass star forming regions (Reid+, 2014)J/ApJS/215/15 : SMaSH+: observations and companion detection (Sana+, 2014)J/ApJ/789/115 : Quintuplet cluster astrometry and photometry (Stolte+, 2014)J/ApJ/808/174 : FeII radiative transition rates (Bautista+, 2015)J/ApJ/830/17 : GC secondary IR astrometric standards (Boehle+, 2016)J/ApJ/825/132 : NuSTAR hard X-ray survey of the GC. II. (Hong+, 2016)J/A+A/595/A94 : Temperature structures in GC clouds (Immer+, 2016)http://sha.ipac.caltech.edu/applications/Spitzer/SHA/ : Spitzer archivehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/857/59https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/857/59http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/857/59https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/857/59https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/857/59http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/857/59GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/857/59/table2 (*Intensities of lines observed with the Short-Low Module, Second Order (SL2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table2?GETtext/xml+votable180.050000true265.93525-29.65122220.005555555555555556Cone search capability for table J/ApJ/857/59/table3 (*Intensities of lines observed with the Short-Low Module, First Order (SL1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table3?GETtext/xml+votable180.050000true265.937625-29.67444440.005555555555555556Cone search capability for table J/ApJ/857/59/table4 (*Intensities of lines observed with the Short-High Module (SH))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table4?GETtext/xml+votable180.050000true265.7054583-29.68688890.005555555555555556Cone search capability for table J/ApJ/857/59/table5 (*Intensities of lines observed with the Long-Low Module, Second Order (LL2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table5?GETtext/xml+votable180.050000true265.867-29.65938890.005555555555555556Cone search capability for table J/ApJ/857/59/table6 (*Intensities of lines observed with the Long-Low Module, First Order (LL1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table6?GETtext/xml+votable180.050000true265.9277083-29.66061110.005555555555555556Cone search capability for table J/ApJ/857/59/table7 (*Intensities of lines observed with the Long-High Module (LH))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table7?GETtext/xml+votable180.050000true265.7044583-29.68661110.005555555555555556Cone search capability for table J/ApJ/857/59/table8 (Positions with measured high-excitation [NeV])https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table8?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table8?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table8?GETtext/xml+votable180.050000true266.29875-29.38750.005555555555555556Cone search capability for table J/ApJ/857/59/table9 (Positions with substantial high-excitation [OIV] but no measured [NeV])https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table9?GETtext/xml+votable180.050000true266.046667-29.4438890.005555555555555556Cone search capability for table J/ApJ/857/59/table10 (Positions with measured [SI])https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table10?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table10?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table10?GETtext/xml+votable180.050000true265.704583-29.6866670.005555555555555556Cone search capability for table J/ApJ/857/59/table11 (Sources with ice absorption features at 6.0 and 6.8um)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/857/59/table11?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/857/59/table11?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/857/59/table11?GETtext/xml+votable180.050000true266.1670417-29.47066670.0055555555555555566/28825 28827 28828 28830 28831 28849 28852https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/857/59?format=asciiInfrareddefaultJ/ApJ/857/59/table2*Intensities of lines observed with the Short-Low Module, Second Order (SL2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.maintau[0.08/12.2] Optical Depth at 9.6umphys.absorption.opticalDepthfloatAORKEYSpitzer/IRS AORKEYmeta.id;obsintAp[3.2e-10/6.6e-09] Aperturesrphys.angSize;instr.fovdoubleI5.34[5.3e-08/3.1e-06]? Intensity of the [FeII]5.34um lineW.m**-2.sr**-1spect.line.intensity;em.IR.4-8umdoublenullablee_I5.34[7.2e-09/3.4e-07]? I5.34 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI5.51[2.7e-08/1.7e-06]? Intensity of the H2 S(7) line at 5.51 micrometersW.m**-2.sr**-1spect.line.intensity;em.IR.4-8umdoublenullablee_I5.51[7.5e-09/2.5e-07]? I5.51 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI6.98[2e-08/2.5e-05] Intensity of the [ArII]6.98um line (1)W.m**-2.sr**-1spect.line.intensity;em.IR.4-8umdoublee_I6.98[3.1e-10/4.2e-07] I6.98 uncertainty (1)W.m**-2.sr**-1stat.errordoubleJ/ApJ/857/59/table3*Intensities of lines observed with the Short-Low Module, First Order (SL1)PosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.maintau[0.08/12.2] Optical Depth at 9.6umphys.absorption.opticalDepthfloatAORKEYSpitzer/IRS AORKEYmeta.id;obsintAp[4.8e-10/6.6e-09] Aperturesrphys.angSize;instr.fovdoubleI12.28[7.5e-09/4.2e-07]? Intensity of the H2 S(2) line at 12.28umW.m**-2.sr**-1spect.line.intensity;em.IR.8-15umdoublenullablee_I12.28[9.8e-10/1.2e-07]? I12.28 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI12.81[2.3e-08/1.4e-05] Intensity of the [NeII]12.81um lineW.m**-2.sr**-1spect.line.intensity;em.IR.8-15umdoublee_I12.81[1.4e-09/4.4e-07] I12.81 uncertaintyW.m**-2.sr**-1stat.errordoubleJ/ApJ/857/59/table4*Intensities of lines observed with the Short-High Module (SH)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.maintau[0.5/11.4]? Optical Depth at 9.6umphys.absorption.opticalDepthfloatnullableAORKEYSpitzer/IRS AORKEYmeta.id;obsintI10.51[4.4e-09/2.6e-07]? Intensity of the [SIV]10.51um lineW.m**-2.sr**-1spect.line.intensity;em.IR.8-15umdoublenullablee_I10.51[1.1e-09/1.2e-08]? I10.51 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI12.28[3.2e-08/4e-07]? Intensity of the H2 S(2) line at 12.28umW.m**-2.sr**-1spect.line.intensity;em.IR.8-15umdoublenullablee_I12.28[6.9e-10/3.6e-08]? I12.28 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI12.37[3.6e-09/2.8e-07]? Intensity of the H 7-6 line at 12.37umW.m**-2.sr**-1spect.line.intensity;em.IR.8-15umdoublenullablee_I12.37[6.5e-10/2.3e-08]? I12.37 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI12.81[1.4e-08/1.5e-05]? Intensity of the [NeII]12.81um lineW.m**-2.sr**-1spect.line.intensity;em.IR.8-15umdoublenullablee_I12.81[8.1e-10/1.6e-07]? I12.81 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI14.37[3.1e-09/1.2e-07]? Intensity of the [ClII]14.37um lineW.m**-2.sr**-1spect.line.intensity;em.IR.8-15umdoublenullablee_I14.37[8.3e-10/3.3e-08]? I14.37 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI15.56[2e-09/1.4e-05]? Intensity of the [NeIII]15.56um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I15.56[3.4e-10/1.3e-07]? I15.56 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI17.03[4.4e-08/3.5e-07]? Intensity of the H2 S(1) line at 17.03umW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I17.03[8e-10/5.6e-08]? I17.03 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI17.88[1.7e-09/1.1e-07]? Intensity of the [PIII]17.88um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I17.88[5.9e-10/1.4e-08]? I17.88 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI17.94[1.2e-09/5e-08]? Intensity of the [FeII]17.94um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I17.94[5.9e-10/1.1e-08]? I17.94 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI18.71[5.3e-09/5.6e-06]? Intensity of the [SIII]18.71um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I18.71[3.4e-10/7e-08]? I18.71 uncertaintyW.m**-2.sr**-1stat.errordoublenullableJ/ApJ/857/59/table5*Intensities of lines observed with the Long-Low Module, Second Order (LL2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.maintau[0.5/12.2] Optical Depth at 9.6umphys.absorption.opticalDepthfloatAORKEYSpitzer/IRS AORKEYmeta.id;obsintAp[2.4e-09/7.3e-09] Aperturesrphys.angSize;instr.fovdoubleI15.56[4.3e-09/4.1e-06]? Intensity of the [NeIII]15.56um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I15.56[8e-10/2.3e-07]? I15.56 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI17.03[2.5e-08/8e-07]? Intensity of the H2 S(1) line at 17.03umW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I17.03[8.5e-10/9.9e-08]? I17.03 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI18.71[5e-09/9.1e-06]? Intensity of the [SIII]18.71um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I18.71[7.7e-10/7e-07]? I18.71 uncertaintyW.m**-2.sr**-1stat.errordoublenullableJ/ApJ/857/59/table6*Intensities of lines observed with the Long-Low Module, First Order (LL1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.maintau[0/12.2] Optical Depth at 9.6umphys.absorption.opticalDepthfloatAORKEYSpitzer/IRS AORKEYmeta.id;obsintAp[3.6e-09/7.3e-09] Aperturesrphys.angSize;instr.fovdoubleI25.9[2.7e-08/1.7e-06]? Intensity of the [OIV]25.89um line (1)W.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I25.9[7.6e-10/1.3e-07]? I25.9 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI28.3[1.7e-08/6e-06]? Intensity of the H2 S(0) line at 28.22umW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I28.3[1.8e-10/2.6e-07]? I28.3 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI33.5[1.3e-08/1.2e-05]? Intensity of the [SIII]33.48um lineW.m**-2.sr**-1spect.line.intensity;em.IR.30-60umdoublenullablee_I33.5[1.3e-09/1.8e-06]? I33.5 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI34.8[4e-08/9.4e-06]? Intensity of the [SiII]34.82um lineW.m**-2.sr**-1spect.line.intensity;em.IR.30-60umdoublenullablee_I34.8[1.9e-09/1.4e-06]? I34.8 uncertaintyW.m**-2.sr**-1stat.errordoublenullableJ/ApJ/857/59/table7*Intensities of lines observed with the Long-High Module (LH)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.maintau[0.5/11.4]? Optical Depth at 9.6umphys.absorption.opticalDepthfloatnullableAORKEYSpitzer/IRS AORKEYmeta.id;obsintI22.9[5.6e-10/5.1e-07]? Intensity of the [FeIII]22.93um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I22.9[3.8e-10/3.7e-08]? I22.9 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI25.9[6.8e-10/1.7e-06]? Intensity of the [OIV]25.89um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I25.9[3.4e-10/5.5e-08]? I25.9 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI26.0[1.8e-09/4e-07]? Intensity of the [FeII]25.99um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I26.0[2.3e-10/2.8e-08]? I26.0 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI28.3[2.7e-08/1.9e-07]? Intensity of the H2 S(0) line at 28.22umW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I28.3[5.3e-10/8.3e-08]? I28.3 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI33.5[1.1e-08/1.3e-05] Intensity of the [SIII]33.48um lineW.m**-2.sr**-1spect.line.intensity;em.IR.30-60umdoublee_I33.5[1.1e-09/2.1e-07] I33.5 uncertaintyW.m**-2.sr**-1stat.errordoubleI34.8[3.4e-08/7.4e-06] Intensity of the [SiII]34.82um lineW.m**-2.sr**-1spect.line.intensity;em.IR.30-60umdoublee_I34.8[1.5e-09/3.3e-07] I34.8 uncertaintyW.m**-2.sr**-1stat.errordoubleJ/ApJ/857/59/table8Positions with measured high-excitation [NeV]recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupGrouping (1)meta.code.multipcharPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.mainAORKEY[23968512/28146944] Spitzer/IRS AORKEYmeta.id;obsintIRSIRS module, SH, LH, or LLinstr.setupcharI14.32[5.8e-09/7e-06]? Intensity of the [NeV]14.32um lineW.m**-2.sr**-1spect.line.intensity;em.IR.8-15umdoublenullablee_I14.32[9.7e-11/9.1e-08]? I14.32 uncertaintyW.m**-2.sr**-1stat.errordoublenullableI24.32[1.1e-08/7.6e-07]? Intensity of the [NeV]24.32um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublenullablee_I24.32[1.3e-10/6.3e-09]? I24.32 uncertaintyW.m**-2.sr**-1stat.errordoublenullableRefReference(s) (2)meta.ref;pos.framecharJ/ApJ/857/59/table9Positions with substantial high-excitation [OIV] but no measured [NeV]recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupGrouping (1)meta.code.multipcharPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.mainAORKEY[999999/28146688]? Spitzer/IRS AORKEYmeta.id;obsintnullableIRSIRS module, SH, LH, SL, or LLinstr.setupcharNotesNotes or references (2)meta.notecharJ/ApJ/857/59/table10Positions with measured [SI]recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.mainAORKEY[3822592/28146944] Spitzer/IRS AORKEYmeta.id;obsintI25.25[1.5e-09/2e-08] Intensity of the [SI]25.25um lineW.m**-2.sr**-1spect.line.intensity;em.IR.15-30umdoublee_I25.25[3.3e-10/4.7e-09] I25.25 uncertaintyW.m**-2.sr**-1stat.errordoubleJ/ApJ/857/59/table11Sources with ice absorption features at 6.0 and 6.8umrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPosPosition on Sky (GLLL.llll+B.bbbb)pos.distance;pos.galactocentriccharRAJ2000[17] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[28/29] Degree of Declination (J2000)pos.eq.dec;meta.mainAORKEY[10455808/23974656] Spitzer/IRS AORKEYmeta.id;obsint