J/A+A/677/A15ivo://CDS.VizieR/J/A+A/677/A15doi:10.26093/cds/vizier.36770015CDSMininni C.Beltran M.T.Colzi L.Rivilla V.M.Fontani F.,Lorenzani A.Lopez-Gallifa A.Viti S.Sanchez-Monge A.Schilke P.,Testi A.2024-11-06T20:05:51Z2023-08-28T09:07:01ZCDS support team

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

cds-question@unistra.frinterstellar-mediumradio-astronomyThe G31.41+0.31 Unbiased ALMA sPectral Observational Survey (GUAPOS) project targets the hot molecular core (HMC) G31.41+0.31 (G31), to unveil the complex chemistry of one of the most chemically rich high-mass star-forming regions outside the Galactic Center (GC). In the third paper of the project we present a study of nine O-bearing (CH_3_OH, C^13^H_3_OH, CH_3_O^18^H, CH_3_CHO, CH_3_OCH_3_, CH_3_COCH_3_, C_2_H_5_OH, aGg'-(CH_2_OH)_2_, and gGg'-(CH_2_OH)_2_) and six N-bearing (CH_3_CN, C^13^H_3_CN, CH_3_C^13^N, C_2_H_3_CN, C_2_H_5_CN, and C_2_H_5_C^13^N) complex organic molecules toward G31. The aim of this work is to characterize the abundances in G31 and to compare them with the values estimated in other sources. Moreover, we search for a possible chemical segregation between O-bearing and N-bearing species in G31, which hosts four compact sources as seen with higher angular resolution data. In the discussion we also include the three isomers of C_2_H_4_O_2_ and the O- and N-bearing molecular species NH_2_CHO, CH_3_NCO, CH_3_C(O)CH_2_, and CH_3_NHCHO, analyzed in previous GUAPOS papers. The observations were carried out with the interferometer ALMA and cover the entire Band 3 from 84 to 116GHz (~32GHz bandwidth) with an angular resolution of 1.2"x1.2" (~4400aux4400au) and a spectral resolution of ~0.488MHz (~1.3-1.7km/s). The transitions of the fourteen molecular species have been analyzed with the tool SLIM of MADCUBA to determine the physical parameters of the emitting gas. Moreover, we have analyzed the morphology of the emission of the molecular species. The values of abundances w.r.t H_2_ in G31 range from 10^-6^ to 10^-10^ for the different species. We have compared the abundances w.r.t methanol of O-bearing, N-bearing, and O- and N-bearing COMs in G31 with other twenty-seven sources, including other hot molecular cores inside and outside the Galactic Center, hot corinos, shocked regions, envelopes around young stellar objects, and quiescent molecular clouds, and with chemical models. From the comparison with other sources there is not a unique template for the abundances in hot molecular cores, pointing towards the importance of the thermal history for the chemistry of the various sources. The abundances derived from the chemical models are well in agreement, within a factor ten, with those of G31. From the analysis of the maps we derived the peak positions of all the molecular species toward G31. Different species peak at slightly different positions, and this, together with the different central velocities of the lines obtained from the spectral fitting, point to chemical differentiation of selected O-bearing species.2023A&A...677A..15Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/677/A15CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/644/A84 : GUAPOS I. Identified transitions of C2H4O2 (Mininni+, 2020)J/A+A/653/A129 : GUAPOS II. Identified transitions of molecules (Colzi+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/677/A15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/677/A15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/677/A15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/677/A15https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/677/A15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/677/A15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/A+A/677/A15/ch3ohv1Transitions of CH_3_OH vt=1 selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/c13h3ohTransitions of C^13^H_3_OH selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/ch3o18hTransitions of CH_3_O-18-H selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/ch3choTransitions of CH_3_CHO selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/ch3och3Transitions of CH_3_OCH_3_ selected for the fitKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/ch3coch3Transitions of CH_3_COCH_3_ selected for the fitKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/c2h5ohTransitions of C_2_H_5_OH selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/g-glycolTransitions of gGg'-(CH_2_OH)_2_ selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/a-glycolTransitions of aGg'-(CH_2_OH)_2_ selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/ch3cnv1Transitions of CH_3_CN v8=1 selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/c13h3cnTransitions of C^13^H_3_CN selected for the fitKuUpper state quantum number Kphys.angMomentumintJlLower state quantum number Jphys.mol.qnintKlLower state quantum number Kphys.angMomentuminttauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRfreqRest frequencyMHzem.freqdoubleEEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy E_uKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintJ/A+A/677/A15/ch3c13nTransitions of CH_3_C^13^N selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRfreqRest frequencyMHzem.freqdoubleEEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy E_uKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKuUpper state quantum number Kphys.angMomentumintJlLower state quantum number Jphys.mol.qnintKlLower state quantum number Kphys.angMomentuminttauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/c2h3cnTransitions of C_2_H_3_CN selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/c2h5cnTransitions of C_2_H_5_CN selected for the fitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullabletauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharJ/A+A/677/A15/c2h5c13nTransitions of C_2_H_5_C-13-N selected for the fittauOptical depth at the center of the linephys.absorption.opticalDepthfloatFlag[Y-] Flag: transition used for the mom-0 mean mapmeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRFreqRest frequencyMHzem.freqdoubleAEinstein coefficients**-1phys.atmol.transProbfloatEuUpper state energy EuKphys.energyfloatJuUpper state quantum number Jphys.mol.qnintKauUpper state quantum number Kaphys.angMomentumintKcu? Upper state quantum number Kcphys.angMomentumintnullableJlLower state quantum number Jphys.mol.qnintKalLower state quantum number Kaphys.angMomentumintKcl? Lower state quantum number Kcphys.angMomentumintnullable