J/A+A/648/A49ivo://CDS.VizieR/J/A+A/648/A49doi:10.26093/cds/vizier.36480049CDSBiver N.Bockelee-Morvan D.Boissier J.Moreno R.Crovisier J.,Lis D.C.Colom P.Cordiner M.Milam S.Roth N.X.Bonev B.P.,Dello Russo N.Vervack R.J.JrDiSanti M.A.2023-05-26T15:25:26Z2021-04-09T06:38:02ZCDS support team

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

cds-question@unistra.frsolar-systemcometsradio-astronomyradio-spectroscopyWe present the results of a molecular survey of comet 46P/Wirtanen undertaken with the IRAM 30-m and NOEMA radio telescopes in December 2018. Observations at IRAM 30-m during the 12-18 Dec. period comprise a 2mm spectral survey, which covers 25GHz, and a 1mm survey which covers 62GHz. The gas outflow velocity and kinetic temperature have been accurately constrained by the observations. We derive abundances of 11 molecules, some being identified remotely for the first time in a Jupiter-family comet, including complex organic molecules such as formamide, ethylene glycol, acetaldehyde or ethanol. Sensitive upper limits on the abundances of 24 other molecules are obtained. The comet is found to be relatively rich in methanol (3.4% relative to water) but relatively depleted in CO, CS, HNC, HNCO or HCOOH.2021A&A...648A..49Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/648/A49CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/648/A49https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/648/A49http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/648/A49https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/648/A49https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/648/A49http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/648/A49GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/648/A49/list (List of fits spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/648/A49/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/648/A49/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/648/A49/list?GETtext/xml+votable180.050000true51.213165.314820.0055555555555555566/64-65 83 310 383https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/648/A49?format=asciiMillimeterRadiodefaultJ/A+A/648/A49/listList of fits 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 datestime.epoch;obsnullablebFREQLower value of frequency intervalHzem.freqdoubleBFREQUpper value of frequency intervalHzem.freqdoubledFREQFrequency resolutionHzspect.resolutiondoublesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar