J/MNRAS/447/1996ivo://CDS.VizieR/J/MNRAS/447/1996doi:10.26093/cds/vizier.74471996CDSWhite G.J.Drabek-Maunder E.Rosolowsky E.Ward-Thompson D.Davis C.J.,Gregson J.Hatchell J.Etxaluze M.Stickler S.Buckle J.Johnstone D.,Friesen R.Sadavoy S.Natt K.V.Currie M.Richer J.S.Pattle K.,Spaans M.Di Francesco J.Hogerheijde M.R.2024-08-14T20:19:36Z2017-07-03T10:02:48ZCDS support team

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

cds-question@unistra.frmolecular-cloudsco-line-emissiongalaxy-classification-systemsCO, ^13^CO, and C^18^O J=3-2 observations are presented of the Ophiuchus molecular cloud. The ^13^CO and C^18^O emission is dominated by the Oph A clump, and the Oph B1, B2, C, E, F, and J regions. The optically thin(ner) C18O line is used as a column density tracer, from which the gravitational binding energy is estimated to be 4.5x10^39^J (2282M_{sun}_km^2^/s^2^). The turbulent kinetic energy is 6.3x10^38^J (320M_{sun}_km^2^/s^2^), or seven times less than this, and therefore the Oph cloud as a whole is gravitationally bound. 30 protostars were searched for high-velocity gas, with 8 showing outflows, and 20 more having evidence of high-velocity gas along their lines of sight. The total outflow kinetic energy is 1.3x10^38^J (67M_{sun}_km^2^/s^2^), corresponding to 21 percent of the cloud's turbulent kinetic energy. Although turbulent injection by outflows is significant, but does not appear to be the dominant source of turbulence in the cloud. 10^5^ dense molecular clumplets were identified, which had radii ~0.01-0.05pc, virial masses ~0.1-12M_{sun}_, luminosities ~0.001-0.1K.km/s/pc^2^, and excitation temperatures ~10^-50^K. These are consistent with the standard Giant Molecular Cloud (GMC) based size-linewidth relationships, showing that the scaling laws extend down to size scales of hundredths of a parsec, and to subsolar-mass condensations. There is however no compelling evidence that the majority of clumplets are undergoing free-fall collapse, nor that they are pressure confined.2015MNRAS.447.1996Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/447/1996CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/430/549 : C^18^O/C^17^O near rho Oph (Wouterloot+, 2005)J/A+A/472/519 : N_2_H+(1-0) maps of Ophiuchus main cloud (Andre+, 2007)J/A+A/510/A98 : ^12^C^18^O(3-2) map of rho Oph A (Liseau+, 2010)J/A+A/587/A118 : N_2_H+, N_2_D+ & C^17^O spectra in Ophiuchus (Punanova+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/447/1996https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/447/1996http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/447/1996https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/447/1996https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/447/1996http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/447/1996GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/447/1996/table5 (The clumplet catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/447/1996/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/447/1996/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/447/1996/table5?GETtext/xml+votable180.050000true246.475-24.4963060.0055555555555555566/42981https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/447/1996?format=asciiOpticalRadiodefaultJ/MNRAS/447/1996/table5The clumplet catalogueSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.recordintRAJ2000Clump centre right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Clump centre declination (J2000)pos.eq.dec;meta.mainMajMajor axis of the clump deconvolved from the beamarcsecphys.angSizefloatMinMinor axis of the clump deconvolved from the beamarcsecphys.angSize;srcfloatPA[] Position angle (measured east of north)degpos.posAngintRadDeconvolved radius of the clump as defined by Rosolowsky et al. (2006PASP..118..590R)pcphys.size.radiusfloatVlsrCentre LSR velocity of the clump as determined from the C^18^O datakm/sphys.veloc;pos.lsrfloatsigmaCentre velocity dispersion of the clump as determined from the C^18^O datakm/sphys.veloc.dispersionfloatMassVirViral masssolMassphys.massfloatLumLuminosity estimated from the CO observationsK.km.s**-1.pc**-2phys.luminositydouble