J/ApJ/739/100ivo://CDS.VizieR/J/ApJ/739/100doi:10.26093/cds/vizier.17390100CDSOberst T.E.Parshley S.C.Nikola T.Stacey G.J.Lohr A.Lane A.P.,Stark A.A.Kamenetzky J.2017-10-12T12:59:38Z2013-04-19T09:09:08ZCDS support team

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

cds-question@unistra.frinterstellar-mediuminfrared-astronomyspectroscopymolecular-cloudsradio-spectroscopyWe present the results of a ~250arcmin^2^ mapping of the 205um [NII] fine-structure emission over the northern Carina Nebula, including the Car I and Car II HII regions. Spectra were obtained using the South Pole Imaging Fabry-Perot Interferometer (SPIFI) at the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) at the South Pole. We supplement the 205um data with new reductions of far-IR fine-structure spectra from the Infrared Space Observatory (ISO) Long Wavelength Spectrometer (LWS) in 63um [OI], 122um [NII], 146um [OI], and 158um [CII]; the 146um [OI] data include 90 raster positions which have not been previously published. Morphological comparisons are made with optical, radio continuum, and CO maps. The 122/205 line ratio is used to probe the density of the low-ionization gas, and the 158/205 line ratio is used to probe the fraction of C^+^ arising from photodissociation regions (PDRs). The [OI] and [CII] lines are used to construct a PDR model of Carina. When the PDR properties are compared with other sources, Carina is found to be more akin to 30 Doradus than galactic star-forming regions such as Orion, M17, or W49; this is consistent with the view of Carina as a more evolved region, where much of the parent molecular cloud has been ionized or swept away. These data constitute the first ground-based detection of the 205um [NII] line, and the third detection overall since those of COBE FIRAS and the Kuiper Airborne Observatory in the early 1990s.2011ApJ...739..100Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/739/100CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/406/952 : Spitzer Catalogue of the Carina Nebula (Smith+, 2010)J/ApJ/667/963 : Near-infrared photometry of Carina nebula (Sanchawala+, 2007)J/MNRAS/367/513 : JHKs[3.5][4.5] photometry of NGC 3372 (Tapia+, 2006)J/A+A/423/579 : Diffuse emissions in Carina nebula (Mizutani+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/739/100https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/739/100http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/739/100https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/739/100https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/739/100http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/739/100GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/739/100/table3 (SPIFI 205um [NII] line intensities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/739/100/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/739/100/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/739/100/table3?GETtext/xml+votable180.050000true160.808859-59.6923570.005555555555555556Cone search capability for table J/ApJ/739/100/table4 (ISO observations of the Carina Nebula)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/739/100/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/739/100/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/739/100/table4?GETtext/xml+votable180.050000true160.27797-59.367650.005555555555555556Cone search capability for table J/ApJ/739/100/table5 (*Density of the ionized medium)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/739/100/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/739/100/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/739/100/table5?GETtext/xml+votable180.050000true160.6185-59.457160.0055555555555555566/38016 38018https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/739/100?format=asciiInfraredRadiodefaultJ/ApJ/739/100/table3SPIFI 205um [NII] line intensitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRaster beam (1)meta.id;meta.mainintGLONGalactic longitude (1)degpos.galactic.lonGLATGalactic latitude (1)degpos.galactic.latl_IntLimit flag on int (2)meta.code.errorcharInt? Line intensity (2)1e-08W.m**-2.sr**-1spect.line.intensityfloatnullablee_Int? Int uncertainty (2)1e-08W.m**-2.sr**-1stat.errorfloatnullable_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexedJ/ApJ/739/100/table4ISO observations of the Carina NebularecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBeamRaster beammeta.id;meta.maincharprimaryGLONGalactic longitude (1)degpos.galactic.lonGLATGalactic latitude (1)degpos.galactic.latNSimbad column added by the CDSmeta.ref.urlcharOI63OI (63um) line intensity1e-08W.m**-2.sr**-1spect.line.intensityfloate_OI63OI63 uncertainty (2)1e-08W.m**-2.sr**-1stat.errorfloatNII122NII (122um) line intensity1e-08W.m**-2.sr**-1spect.line.intensityfloate_NII122NII122 uncertainty (2)1e-08W.m**-2.sr**-1stat.errorfloatOI146OI (146um) line intensity1e-08W.m**-2.sr**-1spect.line.intensityfloate_OI146OI146 uncertainty (2)1e-08W.m**-2.sr**-1stat.errorfloatCII158CII (158um) line intensity1e-08W.m**-2.sr**-1spect.line.intensityfloate_CII158CII158 uncertainty (2)1e-08W.m**-2.sr**-1stat.errorfloat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexedJ/ApJ/739/100/table5*Density of the ionized mediumrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBeamRaster beam (1)meta.id;meta.maincharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latneElectron density n_e_cm**-3phys.density;phys.electroninte_ne? Lower 1{sigma} error on ne (2)cm**-3stat.errorintnullableE_ne? Upper 1{sigma} error on ne (2)cm**-3stat.error;stat.maxintnullable_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexed