J/A+A/582/A64ivo://CDS.VizieR/J/A+A/582/A64doi:10.26093/cds/vizier.35820064CDSLykke J.M.Favre C.Bergin E.A.Jorgensen J.K.2015-10-08T12:06:19Z2015-10-08T11:02:54ZCDS support team

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

cds-question@unistra.frstellar-associationsspectroscopyWith only a few low- and high-mass star-formation regions studied in detail so far, it is unclear what role the environment plays in complex molecule formation. In this light, a comparison of relative abundances of related species between sources might be useful for explaining any observed differences. We seek to measure the relative abundance between three important complex organic molecules, ethylene glycol ((CH_2_OH)_2_), glycolaldehyde (CH_2_OHCHO) and methyl formate (HCOOCH_3_), toward high-mass protostars and thereby provide additional constraints on their formation pathways. We use IRAM30 m single-dish observations of the three species toward two high-mass star-forming regions - W51/e2 and G34.3+0.2 - and report a tentative detection of (CH_2_OH)_2_ toward both sources.2015A&A...582A..64Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/582/A64CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/582/A64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/582/A64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/582/A64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/582/A64https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/582/A64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/582/A64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/582/A64/list (List of spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/582/A64/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/582/A64/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/582/A64/list?GETtext/xml+votable180.050000true283.32751.249440.0055555555555555566/30318 30694https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/582/A64?format=asciiOpticaldefaultJ/A+A/582/A64/listList of spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintObs.DateObservation date (YYYY-MM-DDThh:mm:ss.sss)time.epoch;obscharbFreqLower value of frequency intervalHzem.freq;stat.mindoubleBFreqUpper value of frequency intervalHzem.freq;stat.maxdoubledFreqFrequency resolutionHzspect.resolutionintsizeSize of FITS fileKibytephys.size;meta.fitsintspShow the spectrummeta.ref.urlcharFileNameName of FITS file, in subdirectory spmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar