J/other/SciA/1.9ivo://CDS.VizieR/J/other/SciA/1.9CDSBiver N.Bockelee-Morvan D.Moreno R.Crovisier J.Colom P.Lis D.C.,Sandqvist Aa.Boissier J.Despois D.Milam S.N.2015-10-27T08:06:24Z2015-10-26T18:08:43ZCDS support team

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

cds-question@unistra.frcometsradio-astronomyradio-spectroscopyThe presence of numerous complex organic molecules (COMs; defined as those containing 6 or more atoms) around protostars shows that star formation is accompanied by an increase of molecular complexity. These COMs may be part of the material from which planetesimals and ultimately planets formed. Comets sample some of the oldest and most primitive material in the solar system, including ices, and are thus our best window into the volatile composition of the solar proto-planetary disk. Molecules identified to be present in cometary ices include water, simple hydrocarbons, oxygen, sulfur and nitrogen-bearing species, as well as a few COMs, such as ethylene glycol and glycine. Here, we report the detection of 21 molecules in comet C/2014 Q2 (Lovejoy), including the first identification of ethyl alcohol (ethanol, C2H5OH) and the simplest monosaccharide sugar glycolaldehyde (CH2OHCHO) in a comet. The abundances of ethanol and glycolaldehyde, respectively 5 and 0.8% relative to methanol (0.12 and 0.02% relative to water), are somewhat higher than values measured in solar-type protostars. Overall, the high abundance of COMs in cometary ices supports formation through grain-surface reactions in the solar system protoplanetary disk.2015SciA....1....9Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/SciA/1.9CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/564/L2 : CH3OH line parameters in comets ISON & Lovejoy (Agundez+, 2014)J/A+A/566/L5 : C/2012 F6 (Lemmon) & C/2013 R1 spectra (Lovejoy) (Biver+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/SciA/1.9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/SciA/1.9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/SciA/1.9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/SciA/1.9https://vizier.iucaa.in/viz-bin/votable?-source=J/other/SciA/1.9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/SciA/1.9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/other/SciA/1.9/listList of FITS spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameComet namemeta.id;meta.maincharDateObservation date (YYYY-MM-DDThh:mm:ss.sss)time.epoch;obscharNxNumber of channelsmeta.numberintDf0Lower value of frequency intervalHzinstr.bandwidthdoubleDf1Upper value of frequency intervalHzinstr.bandwidthdoubledfFrequency resolutionHzspect.resolutiondoubleFreqRest frequency of the transitionHzem.freq;phys.atmol.transitiondoublesize[8-11] Size of FITS fileKibytephys.size;meta.fitsintspplot of spectrummeta.ref.urlcharfitsDownload the spectrummeta.ref.urlcharFileNameName of the fits file in subdirectory spmeta.id;meta.fitscharTitleTitle of the filemeta.note