J/A+A/568/A125ivo://CDS.VizieR/J/A+A/568/A125doi:10.26093/cds/vizier.35680125CDSSantangelo G.Nisini B.Codella C.Lorenzani A.Yildiz U.A.,Antoniucci S.Bjerkeli P.Cabrit S.Giannini T.Kristensen L.E.,Liseau R.Mottram J.C.Tafalla M.van Dishoeck E.F.2017-07-13T09:07:04Z2014-09-05T09:14:03ZCDS support team

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

cds-question@unistra.fryoung-stellar-objectsspectroscopyWater is a key molecule in protostellar environments because its line emission is very sensitive to both the chemistry and the physical conditions of the gas. Observations of H_2_O line emission from low-mass protostars and their associated outflows performed with HIFI onboard the Herschel Space Observatory have highlighted the complexity of H_2_O line profiles, in which different kinematic components can be distinguished. The goal is to study the spatial distribution of H_2_O, in particular of the different kinematic components detected in H_2_O emission, at two bright shocked regions along IRAS4A, one of the strongest H_2_O emitters among the Class 0 outflows. We obtained Herschel-PACS maps of the IRAS4A outflow and HIFI observations of two shocked positions. The largest HIFI beam of 38" at 557GHz was mapped in several key water lines with different upper energy levels, to reveal possible spatial variations of the line profiles. A large velocity gradient (LVG) analysis was performed to determine the excitation conditions of the gas.2014A&A...568A.125Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/568/A125CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/563/L2 : NGC 1333-IRAS 2A CALYPSO IRAM-PdBI 1mm maps (Maury+, 2014)J/A+A/558/A58 : NGC 1333-IRAS 4A C^18^O, NO and O_2_ spectra (Yildiz+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/568/A125https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/568/A125http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/568/A125https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/568/A125https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/568/A125http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/568/A125GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/568/A125/list (List of images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/568/A125/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/568/A125/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/568/A125/list?GETtext/xml+votable180.050000true52.2991631.2260.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/568/A1256/862https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/568/A125?format=asciiOpticaldefaultJ/A+A/568/A125/r1_coHIFI spectrum of the CO(16-15) emission at IRAS4A-R1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVelVelocitykm/sspect.dopplerVelocfloatTmbMain beam temperatureKphys.temperature;meta.mainfloatJ/A+A/568/A125/r2_coHIFI spectrum of the CO(16-15) emission at IRAS4A-R2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVelVelocitykm/sspect.dopplerVelocfloatTmbMain beam temperatureKphys.temperature;meta.mainfloatJ/A+A/568/A125/listList of imagesfitsDownload the FITS filemeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainScaleScale of the imagearcsec/pixinstr.scaleintNx[71] Number of pixels along X-axismeta.numberintNy[85] Number of pixels along Y-axismeta.numberintsize[31] Size of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the filemeta.note