J/A+A/657/L15ivo://CDS.VizieR/J/A+A/657/L15doi:10.26093/cds/vizier.36579015CDSHenriquez-Brocal K.Herrera-Camus R.Tacconi L.Genzel R.Bolatto A.,Bovino S.Demarco R.Foerster Schreiber N.Lee M.Lutz D.Rubio M.2022-03-21T09:37:17Z2022-01-21T09:59:29ZCDS support team

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

cds-question@unistra.frgalaxiesco-line-emissionWe use a combination of new NOrthern Extended Millimeter Array (NOEMA) observations of the pair of [CI] transitions, the CO(7-6) line, and the dust continuum, in addition to ancillary CO(1-0) and CO(3-2) data, to study the molecular gas properties of Q1700-MD94, a massive, main-sequence galaxy at z~2. We find that for a reasonable set of assumptions for a typical massive star-forming galaxy, the CO(1-0), the [CI](1-0) and the dust continuum yield molecular gas masses that are consistent within a factor of ~2. The global excitation properties of the molecular gas as traced by the [CI] and CO transitions are similar to those observed in other massive, star-forming galaxies at z~2. Our large velocity gradient (LVG) modeling using RADEX of the CO and [CI] spectral line energy distributions (SLEDs) suggests the presence of relatively warm (Tkin=41K), dense (n_H2_=8x10^3^cm^-3^) molecular gas, comparable to the high-excitation molecular gas component observed in main-sequence, star-forming galaxies at z~1. The galaxy size in the CO(1-0) and CO(7-6) line emission are comparable, which suggests that the highly-excited molecular gas is distributed throughout the disk powered by intense star formation activity. To confirm this scenario will require spatially resolved observations of the CO and [CI] lines which can now be obtained with NOEMA upgraded capabilities.2022A&A...657L..15Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/657/L15CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/657/L15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/657/L15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/657/L15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/657/L15https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/657/L15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/657/L15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/657/L15/list (Informations of FITS datacube)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/657/L15/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/657/L15/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/657/L15/list?GETtext/xml+votable180.050000true255.1749364.189930.0055555555555555566/11596https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/657/L15?format=asciiRadiodefaultJ/A+A/657/L15/listInformations of FITS datacuberecnoRecord 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.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNzNumber of pixels along Z-axismeta.numberintbVRADLower value of VRAD intervalkm/sphys.veloc;pos.heliocentricintBVRADUpper value of VRAD intervalkm/sphys.veloc;pos.heliocentricintdVRADVRAD resolutionkm/spos.angResolutionintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar