J/A+AS/124/385ivo://CDS.VizieR/J/A+AS/124/385CDSZinchenko I.Henning T.Schreyer K.2013-03-06T06:35:56Z1999-02-27T12:28:31ZCDS support team

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

cds-question@unistra.frastrophysical-masersradio-astronomyradial-velocityWe present results of the observations of 17 molecular clouds associated with bright FIR sources in the NH_3_ (1, 1) and (2, 2) lines with the 100-m radio telescope in Effelsberg. The lines were detected in 11 clouds and 10 of them have been mapped in these lines. The kinetic temperatures, sizes, masses and mean densities of the ammonia cores have been derived. For most of the detected clouds the masses derived under the assumption of a relative ammonia abundance of {chi}(NH_3_)=3x10^-8^ are close to virial masses. However, in S 88 B the ratio M/M_vir_ is only ~0.1 and in a few other cases this ratio is significantly lower than unity which may indicate ammonia underabundance. Almost all objects with the signs of underabundance are among the most luminous IR sources in our sample. Most of the mapped cores are elongated with noticeable velocity gradients along the major axis. The most prominent example is S 255. S 87 has a two-component structure with 2 distinct velocity components which overlap partly spatially. In about half of the mapped sources the NH_3_ line widths increase near the peaks of the ammonia emission. The kinetic temperatures are centrally peaked. They reach 20-28K in the centre and drop to 15-20K at the edges of the ammonia emitting regions. In S 76 E a weak extended emission in the (1, 1) line at the velocity blue-shifted by ~5km/s relative to the core emission was detected. Hyperfine intensity anomalies in the (1, 1) transition were found in S 199 in addition to the known case of these anomalies in S 87.1997A&AS..124..385Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/124/385CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/288/601 : Dense molecular cores. I. (Zinchenko+ 1994)J/A+AS/111/95 : Dense molecular cores. II. (Zinchenko+, 1995)J/A+AS/118/191 : Dense molecular cores. IV. (Juvela, 1996)J/A+AS/133/337 : Dense molecular cores. VII. (Zinchenko+ 1998)J/ApJS/125/161 : A database of dense cores mapped in ammonia (Jijina+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/124/385https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/124/385http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/124/385https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/124/385https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/124/385http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/124/385GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/124/385/table1 (Source list)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/124/385/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/124/385/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/124/385/table1?GETtext/xml+votable180.050000true287.176915.6002430.0055555555555555566/3061 3290 14314 14317 14353 14358-14359 14406 14409 14624 15671 23969 24365 24554 30592 30624https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/124/385?format=asciiOpticalRadiodefaultJ/A+AS/124/385/table1Source listRGGalacto-centric distance of the sourcekpcpos.distancefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatDistDistance from the Earthkpcpos.distancefloatr_DistDistance reference (1)meta.ref;pos.framecharzHeight above the Galactic planepcpos.cartesian.z;pos.galacticintIRASIRAS PSC (Cat. <II/125>) namemeta.idcharm_IRASMultiplicity index on IRASmeta.code.multipcharL(IR)IRAS luminositysolLumphys.luminosity;em.IRfloatDetec[oh] Source detection (2)instr.saturationcharRemRemarkmeta.notechar_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/A+AS/124/385/table5NH3 mapping data for S76ErecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table6NH3 mapping data for S86NVelocity componentmeta.id.part;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table7NH3 mapping data for S87recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table8NH3 mapping data for S88BrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table9NH3 mapping data for S145recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table10NH3 mapping data for S199recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table11NH3 mapping data for S231recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table12NH3 mapping data for S255recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table13NH3 mapping data for RNO1BrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullableJ/A+AS/124/385/table14NH3 mapping data for BFS48recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDalphaOffset in R.A. (multiplied by cos{delta})arcsecpos.eq.ra;arith.diffintDdeltaOffset in Dec.arcsecpos.eq.dec;arith.diffintNVelocity componentmeta.id.part;meta.mainintVlsr? LSR velocitykm/sphys.veloc;pos.lsrfloatnullablee_Vlsr? rms uncertainty on Vlsrkm/sstat.error;phys.veloc;pos.lsrfloatnullableDeltaV? Line widthkm/sspect.line.widthfloatnullablee_DeltaV? rms uncertainty on DeltaVkm/sstat.errorfloatnullablel_logNH3limit flag on logNH3meta.code.errorcharlogNH3Ammonia NH_3(1,1) column densitylog(cm**-2)phys.columnDensityfloate_logNH3? rms uncertainty on logNH3log(cm**-2)stat.errorfloatnullableTkin? Kinetic temperatureKphys.temperaturefloatnullablee_Tkin? rms uncertainty on TkinKstat.errorfloatnullable