J/ApJ/753/50ivo://CDS.VizieR/J/ApJ/753/50doi:10.26093/cds/vizier.17530050CDSPandian J.D.Wyrowski F.Menten K.M.2017-06-27T06:38:47Z2014-03-12T08:11:02ZCDS support team

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

cds-question@unistra.frastrophysical-masersradio-astronomyMethanol masers at 6.7GHz are known to be tracers of high-mass star formation in our Galaxy. In this paper, we study the large-scale physical conditions in the star-forming clumps/cores associated with 6.7GHz methanol masers using observations of the (1,1), (2,2), and (3,3) inversion transitions of ammonia with the Effelsberg telescope. The gas kinetic temperature is found to be higher than in infrared dark clouds, highlighting the relatively evolved nature of the maser sources. Other than a weak correlation between maser luminosity and the ammonia line width, we do not find any differences between low- and high-luminosity methanol masers.2012ApJ...753...50Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/753/50CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/431/1752 : ATLASGAL 6.7GHz methanol masers (Urquhart+, 2013)J/ApJS/195/14 : The Bolocam Galactic Plane Survey. V. (Schlingman+, 2011)J/A+A/486/191 : Distances towards 6.7GHz methanol masers (Pandian+, 2008)J/ApJ/669/435 : AMGPS. Paper II. (Pandian+, 2007)J/ApJ/656/255 : Arecibo methanol Maser Galactic Plane Survey (Pandian+, 2007)J/AZh/84/579 : Catalog of Class I methanol masers (Val'tts+, 2007)J/MNRAS/377/571 : GLIMPSE 6.7GHz masers non-detections (Ellingsen+, 2007)J/A+A/432/737 : General Cat. of 6.7GHz Methanol Masers (Pestalozzi+, 2005)J/A+A/403/1095 : 6.7GHz methanol masers survey of low-mass YSO (Minier+, 2003)J/other/ChJAA/3.49 : Velocity & distance of methanol maser sources (Xu+, 2003)J/A+AS/143/269 : 6.7GHz methanol maser emission survey (Szymczak+, 2000)J/A+AS/134/115 : Medicina 6.7GHz methanol masers survey (Slysh+ 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/753/50https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/753/50http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/753/50https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/753/50https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/753/50http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/753/50GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/753/50/NH3 (Properties of the NH_3_ lines observed toward the AMGPS sources, and the derived physical parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/753/50/NH3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/753/50/NH3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/753/50/NH3?GETtext/xml+votable180.050000true283.4058331.8422220.0055555555555555565/7605 6/30319 30330 30405 30417 30419 30594 30595 30601 30604 30605 30616 30619 30622 30644 30645 30694 30695 30712 30716 30718 30719https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/753/50?format=asciiRadiodefaultJ/ApJ/753/50/NH3Properties of the NH_3_ lines observed toward the AMGPS sources, and the derived physical parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameAMGPS source designation (GLL.ll+B.bb) (G1)meta.id;meta.maincharm_Name[ab] Mutiplicity flag on Name (G2)meta.code.multipcharVlsr[-44.4/94.6]? LSR velocity (1)km/sphys.veloc;pos.lsrfloatnullablel_TMB11Limit flag on TMB11 (3{sigma} upper limit)meta.code.errorcharTMB11[0.09/2.9] NH_3_(1,1) main beam brightness temperatureKspect.line.intensityfloate_TMB11[0.02/0.09]? TMB11 uncertainty (2)Kstat.errorfloatnullabledV11[0.7/4.4]? NH_3_(1,1) FWHM (G3)km/sspect.line.widthfloatnullablee_dV11[0.01/0.8]? dV11 uncertaintykm/sstat.errorfloatnullabletau11[0.2/4.5]? NH_3_(1,1) optical depth (3)phys.absorption.opticalDepthfloatnullablee_tau11[0.06/1.7]? tau11 uncertaintystat.errorfloatnullablel_TMB22Limit flag on TMB22 (3{sigma} upper limit)meta.code.errorcharTMB22[0.07/1.8] NH_3_(2,2) main beam brightness temperatureKspect.line.intensityfloate_TMB22[0.02/0.1]? TMB22 uncertainty (2)Kstat.errorfloatnullabledV22[1.2/5.2]? NH_3_(2,2) FWHM (G3)km/sspect.line.widthfloatnullablee_dV22[0.04/0.9]? dV22 uncertaintykm/sstat.errorfloatnullablel_TMB33Limit flag on TMB33 (3{sigma} upper limit)meta.code.errorcharTMB33[0.07/3]? NH_3_(3,3) main beam brightness temperatureKspect.line.intensityfloatnullablef_TMB33[a] Blended line (4)meta.codechare_TMB33[0.03/0.09]? TMB33 uncertainty (2)Kstat.errorfloatnullabledV33[1.2/5.6]? NH_3_(3,3) FWHM (G3)km/sspect.line.widthfloatnullablee_dV33[0.06/0.6]? dV33 uncertaintykm/sstat.errorfloatnullableTex11[3/8] Excitation temperature of NH_3_(1,1)Kphys.atmol.excitationfloatnullablef_Tex11[a] Assumed value of Tex11 (5)meta.codechare_Tex11[0.1/2.3] Tex11 uncertainty (6)Kstat.errorfloatnullableTR21[12/32] Rotation temperature from (2,2) and (1,1) linesKphys.temperaturefloatnullablee_TR21[0.9/9.1] TR21 uncertainty (6)Kstat.errorfloatnullableTk[14/68] Kinetic temperatureKphys.temperaturefloatnullableE_Tk[1.5/94] Tk positive error (6)Kstat.error;stat.maxfloatnullablee_Tk[1.5/32] Tk negative error (6)Kstat.errorfloatnullableTR31[17/56]? Rotation temperature from (3,3) and (1,1) linesKphys.temperaturefloatnullablee_TR31[0.7/19]? TR31 uncertainty (6)Kstat.errorfloatnullableN(NH3)[0.9/8] Total NH_3_ column density1e+15cm**-2phys.columnDensityfloatnullablee_N(NH3)[0.2/3] N(NH3) uncertainty (6)1e+15cm**-2stat.errorfloatnullable_RAPositions from AMGPS catalog J/ApJ/656/255 and 2011ApJ...730...55P (table 3) (right ascension part)degpos.eq.ra;meta.main_DEPositions from AMGPS catalog J/ApJ/656/255 and 2011ApJ...730...55P (table 3) (declination part)degpos.eq.dec;meta.main