J/ApJS/125/161ivo://CDS.VizieR/J/ApJS/125/161doi:10.26093/cds/vizier.21250161CDSJijina J.Myers P.C.Adams F.C.2012-11-13T06:19:35Z2001-01-27T20:23:03ZCDS support team

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

cds-question@unistra.fryoung-stellar-objectspre-main-sequence-starsradio-astronomyWe present a database of 264 cores mapped in the (J,K)=(1,1) and (2,2) lines of NH_3_. We list the core gas properties-peak positions, total ammonia column densities, intrinsic line widths, kinetic temperatures, volume densities, core sizes, aspect ratios, and velocity gradients, as well as the properties of associated young stellar objects (YSOs)-associated IRAS sources along with their luminosities and core-YSO distances, outflow velocities, and SIMBAD and cluster associations. We also present the results of our statistical analysis and enumerate important pairwise correlations among the various gas and YSO properties.1999ApJS..125..161Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/125/161CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/308/573 : Ammonia on YSOs IRAS sources (Molinari+ 1996)J/A+AS/124/385 : Dense molecular cores. V. (Zinchenko+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/125/161https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/125/161http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/125/161https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/125/161https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/125/161http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/125/161GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/125/161/tablea1 (Core location, method of observation, and references)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/125/161/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/125/161/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/125/161/tablea1?GETtext/xml+votable180.050000true9.19079963.4836370.0055555555555555566/857 859 860 862 1031 1048 1050 1052 1053 1054 1061 1067 1074 1075 1082 1114 1126 1129 1154 1159 1290 1539 1542 1959 1968 3011 3061 3198 3290 3331 3630 3649 13736 13912 14052 14053 14063 14199 14267 14269 14304 14306 14307 14309 14311 14312 14314 14315 14316 14330 14353 14358 14359 14372 14411 14594 14621 14647 14655 14689 14696 14704 15379 15411 15479 15588 15589 15667 15668 15670 15671 15676 15682 15683 15684 15759 15857 15941 15964 15965 16129 16131 16191 16196 16197 21400 21425 21427 21428 21430 21435 21436 21438 21439 21456 21458 22804 22805 22829 22855 22861 22866 22873 22876 23549 23637 23704 23739 23969 23970 24300 24325 24365 24499 24507 24515 24554 28830 29101 29116 29211 29245 29362 29367 29653 29884 30318 30344 30366 30405 30519 30623 30624 30694 30733 30743 30798 30821 31257 31263 32083 37817 37819 37955 38410 39396 41133 41822 42301 42457 42970 42981 43010 47828https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/125/161?format=asciiRadiodefaultJ/ApJS/125/161/tablea1Core location, method of observation, and referencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqDatase reference number (G1)meta.bibintprimaryn_SeqNote on Seq (G2)meta.notecharNameSource name of the core (3)meta.id;meta.maincharRA1950Right ascension (1950) (4)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainTelObservational parameters (5)meta.id;instr.obstycharSFRName of the prominent star-forming region, to which the dense core belongs, or the Bok globule name where relevant.meta.idcharDist? Distance to the corekpcpos.distancefloatnullablen_Dist[u?] Uncertainty flag on Distmeta.notecharref(1)References, in refs.dat file (6)meta.ref;pos.framecharref(2)References, in refs.dat file (6)meta.ref;pos.framecharNamesOther names of the coremeta.idchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/ApJS/125/161/tablea2Core gas propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqDatabase reference number (G1)meta.bibintprimaryn_SeqNote on Seq (G2)meta.notecharNameName of the NH_3_(1,1) sourcemeta.id;meta.maincharlogNNH3? Logarithm (log_10_) of the total NH_3_ column density, N_(NH_3_)/cm^-2^ (3)log(cm**-2)phys.columnDensityfloatnullableu_logNNH3[u] Uncertainty code (4)meta.code.errorcharDVint? Intrinsic line widths (5)km/sspect.line.widthfloatnullableu_DVint[mu] Uncertainty code (4)meta.code.errorcharTkin? Kinetic temperature (6)Kphys.temperaturefloatnullableu_Tkin[amru] Uncertainty code (4)meta.code.errorcharlogNtot? Logarithm of the total volume density of the molecule of mean mass (7)log(cm**-3)phys.densityfloatnullableu_logNtot[um] Uncertainty code (4)meta.code.errorcharR? Core size (8)pcphys.sizefloatnullableu_R[u] Uncertainty code (4)meta.code.errorchara/b? Projected aspect ratio (9)phys.size;arith.ratiofloatnullableVGrad? Velocity gradient of the core (10)km.s**-1.pc**-1arith.grad;phys.velocfloatnullableu_VGrad[u] Uncertainty code (4)meta.code.errorcharNamesOther names of the NH_3_(1,1) sourcemeta.idcharJ/ApJS/125/161/tablea3YSO propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqDatabase reference numbermeta.bibintprimaryn_SeqNote on Seq (G2)meta.notecharNameName of the NH_3_(1,1) source.meta.id;meta.maincharIRASName of the IRAS source, if there is one associated with the dense core (2)meta.id.assoccharl_log(Liras)Limit flag on log(Liras)meta.code.errorcharlog(Liras)? IRAS luminosity (3)log(solLum)phys.luminosity;em.IRfloatnullableu_log(Liras)[u] u: uncertain for unspecified reason.meta.code.errorcharDist? Projected distance of the IRAS source from the peak position of the NH_3_(1,1) mappcpos.distancefloatnullablen_Dist[u] u: uncertaintymeta.notecharVout? Outflow velocity, if there is an outflow known to be associated with the core (4)km/smeta.id.assoc;phys.velocfloatnullablen_Vout[o] o: outflow velocity measurement made at position other than at the powering IRAS source (perhaps powered by some other source)meta.notecharNIRAS? Number of IRAS sources associated with the NH_3_ coremeta.numberintnullablen_NIRAS[na ] Not analysedmeta.notecharl_NSimbad[~] Limit flag on NSIMBADmeta.code.errorcharNSimbad? Estimate of the number of non-IRAS sources projected within 2 core radii of the peak position as reported by the SIMBAD database (5)meta.numberintnullablen_NSimbad[na ] Not analysedmeta.notecharAss[yn] Cluster association (yes/no) (6)meta.notecharu_Ass[?] Uncertainty flag on Ass (6)meta.code.errorcharn_Ass[na] Not analysedmeta.notecharNamesOther namesmeta.idcharJ/ApJS/125/161/tablea4Comments on individual sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqDatabase reference numbermeta.bibintComRelevant comments for each database entry (1)meta.notecharJ/ApJS/125/161/refsReferencesComCommentsmeta.notecharBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefRef numbermeta.id;meta.mainint