J/ApJS/202/4ivo://CDS.VizieR/J/ApJS/202/4doi:10.26093/cds/vizier.22020004CDSLiu T.Wu Y.Zhang H.2017-06-29T08:56:00Z2012-11-13T13:18:37ZCDS support team

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

cds-question@unistra.frinterstellar-mediumradio-astronomymolecular-cloudsgalaxy-kinematicsA mapping survey of 51 Planck cold clumps projected on the Orion complex was performed with J=1-0 lines of ^12^CO and ^13^CO with the 13.7m telescope at the Purple Mountain Observatory. The mean column densities of the Planck gas clumps range from 0.5 to 9.5x10^21^cm^-2^, with an average value of (2.9+/-1.9)x10^21^cm^-2^. The mean excitation temperatures of these clumps range from 7.4 to 21.1K, with an average value of 12.1+/-3.0K and the average three-dimensional velocity dispersion {sigma}_3D_ in these molecular clumps is 0.66+/-0.24km/s. The H2 column density of the molecular clumps calculated from molecular lines correlates with the aperture flux at 857GHz of the dust emission. By analyzing the distributions of the physical parameters, we suggest that turbulent flows can shape the clump structure and dominate their density distribution on large scales, but not function on small scales due to local fluctuations. Eighty-two dense cores are identified in the molecular clumps. The dense cores have an average radius and local thermal equilibrium (LTE) mass of 0.34+/-0.14pc and 38^+5^_-30_M_{sun}_, respectively. The structures of low column density cores are more affected by turbulence, while the structures of high column density cores are more affected by other factors, especially by gravity.2012ApJS..202....4Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/202/4CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/88 : Planck Early Release Compact Source Catalogue (Planck, 2011)VIII/39 : Composite CO Survey of the Milky Way (Dame+ 1987)J/ApJ/756/76 : Planck cold dust clumps CO survey (Wu+, 2012)J/A+A/544/A146 : ATLASGAL cold high-mass clumps with NH_3_ (Wienen+, 2012)J/A+A/538/A137 : Orion B9 dense cores maps (Miettinen+, 2012)J/ApJ/691/1560 : Dense core survey in the Orion B cloud (Ikeda+, 2009)J/ApJ/665/1194 : Dense cores in the Orion A cloud survey (Ikeda+, 2007)J/ApJ/653/383 : SCUBA observations in Orion A South region (Johnstone+, 2006)J/ApJ/639/259 : Sub-mm clumps in Orion B molecular cloud (Johnstone+, 2006)J/ApJ/559/307 : Sub-mm mapping in Orion B molecular cloud (Johnstone+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/202/4https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/202/4http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/202/4https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/202/4https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/202/4http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/202/4GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/202/4/clumps (Parameters of the Planck cold clumps and derived parameters of gas emission over the whole clouds)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/202/4/clumps?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/202/4/clumps?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/202/4/clumps?GETtext/xml+votable180.050000true69.36037516.98367220.005555555555555556Cone search capability for table J/ApJS/202/4/cores (Derived parameters of the dense cores)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/202/4/cores?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/202/4/cores?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/202/4/cores?GETtext/xml+votable180.050000true81.323916719.16892110.0055555555555555566/21298 21308 21311 21337 21340 21347 21350 21354 21396 21397 21400 21440 21645 21684 22191 22205 22214 22233 22807 22855 22867 22876 23005 23029 23030 23031 23036 23541 23557 23563 23572 23576 23578 23597 23600 23697 23739 24066 24076 24077 24163 241695.675559809562688e-22 5.675559809562688e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/202/4?format=asciiRadiodefaultJ/ApJS/202/4/clumpsParameters of the Planck cold clumps and derived parameters of gas emission over the whole cloudsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameClump identifier (GBBB.bb+LL.lla)meta.id;meta.maincharprimaryCNumber of dense cores in this clump (in tables 3 and 4)meta.numberintnullableGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainVLSRLocal Standard of Rest velocitykm/sphys.veloc;pos.lsrfloatFluxPlank aperture flux density at 857GHzJyphot.flux.density;em.mm.400-750GHzfloatAssocAssociations identified with SIMBAD (1)src.classcharSimbadSimbad column added by the CDSmeta.refcharNH2Mean H_2_ column density1e+21cm**-2phys.columnDensity;stat.meanfloate_NH2Lower limit uncertainty in <NH2> (2)1e+21cm**-2stat.error;phys.columnDensityfloatE_NH2Upper limit uncertainty in <NH2> (2)1e+21cm**-2stat.error;stat.maxfloatP-NH2[0/1] Normal NH2 P-value (G1)stat.fit.goodnessfloatPl-NH2[0/1] Log-normal NH2 P-value (G1)stat.fit.goodnessfloatTexMean excitation temperature valueKphys.atmol.excitation;stat.meanfloate_TexLower limit uncertainty in Tex (2)Kstat.errorfloatE_TexUpper limit uncertainty in Tex (2)Kstat.error;stat.maxfloatP-Tex[0/1] Normal Tex P-value (G1)stat.fit.goodnessfloatPl-Tex[0/1] Log-normal Tex P-value (G1)stat.fit.goodnessfloatsigThMean thermal velocity dispersion (3)km/sphys.veloc.dispersionfloate_sigThLower limit uncertainty in sigTh (2)km/sstat.errorfloatE_sigThUpper limit uncertainty in <sigTh> (2)km/sstat.error;stat.maxfloatP-sigTh[0/1] Normal sigTh P-value (3) (G1)stat.fit.goodnessfloatPl-sigTh[0/1] Log-normal sigTh P-value (3) (G1)stat.fit.goodnessfloatsigNTMean non-thermal velocity dispersion (3)km/sphys.veloc.dispersionfloate_sigNTLower limit uncertainty in sigNT (2)km/sstat.errorfloatE_sigNTUpper limit uncertainty in sigNT (2)km/sstat.error;stat.maxfloatP-sigNT[0/1] Normal sigNT P-value (3) (G1)stat.fit.goodnessfloatPl-sigNT[0/1] Log-normal sigNT P-value (3) (G1)stat.fit.goodnessfloatsig3DMean 3D velocity dispersion valuekm/sphys.veloc.dispersionfloate_sig3DLower limit uncertainty in sig3D (2)km/sstat.errorfloatE_sig3DUpper limit uncertainty in sig3D (2)km/sstat.error;stat.maxfloatP-sig3D[0/1] Normal sig3D P-value (G1)stat.fit.goodnessfloatPl-sig3D[0/1] Log-normal sig3D P-value (G1)stat.fit.goodnessfloatJ/ApJS/202/4/coresDerived parameters of the dense coresrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameClump identifier (GBBB.bb+LL.lla)meta.id;meta.maincharoRAOffset in Right Ascension from clump centerarcsecpos.eq.ra;arith.diffintoDEOffset in Declination from clump centerarcsecpos.eq.dec;arith.diffintB_NH2Maximum H_2_ column density1e+21cm**-2phys.columnDensity;stat.maxfloatNH2Mean H_2_ column density1e+21cm**-2phys.columnDensity;stat.meanfloate_NH2Lower limit uncertainty in NH2 (1)1e+21cm**-2stat.error;phys.columnDensityfloatE_NH2Upper limit uncertainty in NH2 (1)1e+21cm**-2stat.error;stat.maxfloatP-NH2[0/1] Normal NH2 P-value (G1)stat.fit.goodnessfloatPl-NH2[0/1] Log-normal NH2 P-value (G1)stat.fit.goodnessfloatTexMean excitation temperature valueKphys.atmol.excitation;stat.meanfloate_TexLower limit uncertainty in Tex (1)Kstat.errorfloatE_TexUpper limit uncertainty in Tex (1)Kstat.error;stat.maxfloatP-Tex[0/1] Normal Tex P-value (G1)stat.fit.goodnessfloatPl-Tex[0/1] Log-normal Tex P-value (G1)stat.fit.goodnessfloatsigThMean thermal velocity dispersion (2)km/sphys.veloc.dispersionfloate_sigThLower limit uncertainty in sigTh (1)km/sstat.errorfloatE_sigThUpper limit uncertainty in sigTh (1)km/sstat.error;stat.maxfloatP-sigTh[0/1] Normal sigTh P-value (2) (G1)stat.fit.goodnessfloatPl-sigTh[0/1] Log-normal sigTh P-value (2) (G1)stat.fit.goodnessfloatsigNTMean non-thermal velocity dispersion (2)km/sphys.veloc.dispersionfloate_sigNTLower limit uncertainty in sigNT (1)km/sstat.errorfloatE_sigNTUpper limit uncertainty in sigNT (1)km/sstat.error;stat.maxfloatP-sigNT[0/1] Normal sigNT P-value (2) (G1)stat.fit.goodnessfloatPl-sigNT[0/1] Log-normal sigNT P-value (2) (G1)stat.fit.goodnessfloatsig3DMean 3D velocity dispersion valuekm/sphys.veloc.dispersionfloate_sig3DLower limit uncertainty in sig3D (1)km/sstat.errorfloatE_sig3DUpper limit uncertainty in sig3D (1)km/sstat.error;stat.maxfloatP-sig3D[0/1] Normal sig3D P-value (G1)stat.fit.goodnessfloatPl-sig3D[0/1] Log-normal sig3D P-value (G1)stat.fit.goodnessfloatSizeDeconvolved Size; major axis by minor axisarcsecphys.angSizecharPA[-83.4/88.4] Position angle of the coredegpos.posAngfloatR[0.08/0.65] Core radiuspcphys.size.radiusfloatVLSR[-2.8/36.4] Local Standard of Rest velocitykm/sphys.veloc;pos.lsrfloate_VLSR? Uncertainty in VLSRkm/sstat.error;phys.veloc;pos.lsrfloatnullablen[0.9/5.6] Volume densitymm**-3phys.densityfloatMLTE[0.3/270.2] LTE core masssolMassphys.massfloatMvirVirial core masssolMassphys.massfloatMJCore Jeans masssolMassphys.massfloatAssocIRAS point source associationmeta.id.assocchar_RAPosition computed from clump coordinates in table 1 and offsets (right ascension part)degpos.eq.ra;meta.main_DEPosition computed from clump coordinates in table 1 and offsets (declination part)degpos.eq.dec;meta.main