J/A+A/598/A59ivo://CDS.VizieR/J/A+A/598/A59doi:10.26093/cds/vizier.35980059CDSRivilla V.M.Beltran M.T.Cesaroni R.Fontani F.Codella C.Zhang Q.2017-06-27T06:38:14Z2017-02-01T08:19:29ZCDS support team

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

cds-question@unistra.frh-ii-regionsspectroscopyThe detection of complex organic molecules related with prebiotic chemistry in star-forming regions allows us to investigate how the basic building blocks of life are formed. Ethylene glycol (CH_2_OH)_2_ is the simplest sugar alcohol and the reduced alcohol of the simplest sugar glycoladehyde (CH_2_OHCHO). We study the molecular abundance and spatial distribution of (CH_2_OH)_2_, CH_2_OHCHO and other chemically related complex organic species (CH_3_OCHO, CH_3_OCH_3_, and C_2_H_5_OH) towards the chemically rich massive star-forming region G31.41+0.31. We analyzed multiple single-dish (Green Bank Telescope and IRAM 30m) and interferometric (Submillimeter Array) spectra towards G31.41+0.31, covering a range of frequencies from 45 to 258GHz. We fitted the observed spectra with a local thermodynamic equilibrium (LTE) synthetic spectra, and obtained excitation temperatures and column densities. We compared our findings in G31.41+0.31 with the results found in other environments, including low- and high-mass star-forming regions, quiescent clouds and comets.2017A&A...598A..59Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/598/A59CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/598/A59https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/598/A59http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/598/A59https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/598/A59https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/598/A59http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/598/A59GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/598/A59/g31-usbSMA spectra (USB) towards the G31.41+0.31 hot molecular core (Fig. 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreqFrequencyGHzem.freqdoubleFluxFluxJy/beamphot.fluxdoubleJ/A+A/598/A59/g31-lsbSMA spectra (LSB) towards the G31.41+0.31 hot molecular core (Fig. 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreqFrequencyGHzem.freqdoubleFluxFluxJy/beamphot.fluxdouble