J/A+A/559/A48ivo://CDS.VizieR/J/A+A/559/A48doi:10.26093/cds/vizier.35590048CDSde Val-Borro M.Kuppers M.Hartogh P.Rezac L.Biver N.,Bockelee-Morvan D.Crovisier J.Jarchow C.Villanueva G.L.2016-07-04T13:05:06Z2013-11-12T08:08:59ZCDS support team

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

cds-question@unistra.frcometsradio-spectroscopyThe chemical composition of comets can be inferred using spectroscopic observations in submillimeter and radio wavelengths. We aim to compare the production rates ratio of several volatiles in two comets, C/2001 Q4 (NEAT) and C/2002 T7 (LINEAR), which are generally regarded as dynamically new comets likely to originate in the Oort cloud. This type of comets is considered to be composed of primitive material that has not undergone considerable thermal processing. The line emission in the coma was measured in the comets, C/2001 Q4 (NEAT) and C/2002 T7 (LINEAR), that were observed on five consecutive nights, 7-11 May 2004, at heliocentric distances of 1.0 and 0.7AU, respectively, by means of high resolution spectroscopic observations using the 10-m Submillimeter Telescope (SMT) at the Arizona Radio Observatory (ARO). Both objects became very bright and reached naked-eye visibility during their perihelion passage in the spring of 2004.2013A&A...559A..48Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/559/A48CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/comet : Database of the orbital elements of comets (Rocher, 2007+)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/559/A48https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/559/A48http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/559/A48https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/559/A48https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/559/A48http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/559/A48GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapAssociated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/559/A48RadiodefaultJ/A+A/559/A48/objectsComet information (from B/comets catalog)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIAUIAU code for the cometmeta.id;meta.maincharTypeIAU class (NEAT or LINEAR)src.classcharEpEpoch of the computed elements (JD)dtime.epochdoubleqPerihelion distanceAUpos.distance;src.orbital.periastrondoubleeOrbit eccentricitysrc.orbital.eccentricitydoubleiInclination of the orbitdegsrc.orbital.inclinationdoubleH1Constant term for magnitudemagphot.magfloatFile1Name of the file with flux densitiesmeta.id;phot.flux;meta.filecharFile2Name of the file with line variabilitymeta.id;src.var;meta.filecharspLink to spectra available for this cometmeta.ref.urlcharJ/A+A/559/A48/table4*Observed flux densities integrated over velocity in comet C/2002 T7 (LINEAR)Q? Production rate (4)mol/sstat.paramdoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMolMoleculemeta.notecharDateMid-time of the observations recorded as decimal days in May 2004dtime.epochfloatTransTransitionmeta.id;phys.atmol.transitionn_Trans[*] * indicate blended linesmeta.notecharFreq[225/272] Transition frequency (1)GHzem.freqdoubleBackendBackend name (AOSA, AOSB or CTSB)meta.id;instrcharrmsrms noise in units of main beam brightness temperature (TmB)Kstat.stdev;instr.det.noisefloatspPlot of the spectrummeta.ref.urlcharl_IfluxLimit flag on Ifluxmeta.code.errorcharIfluxObserved flux density integrated over velocity (line intensity) (2)K.km/sphot.fluxfloate_Iflux? rms uncertainty on IfluxK.km/sstat.errorfloatnullableDV? Velocity offset (3)m/sphys.veloc;arith.diffdoublenullablee_DV? rms uncertainty on DVm/sstat.errordoublenullableVexp? Expansion velocitykm/sphys.veloc.expansionfloatnullablee_Vexp? rms uncertainty on Vexpkm/sstat.errorfloatnullablel_QLimit flag on Qmeta.code.errorchare_Q? rms uncertainty on Qmol/sstat.errordoublenullableFileNameName of the spectrum file in subdirectory fitsmeta.id;meta.filecharJ/A+A/559/A48/table7Line variability of the HCN (3-2) transition in C/2001 Q4 (NEAT)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateMid-time of the observations recorded as decimal days in May 2004dtime.epochfloatBackendBackend name (AOSA, AOSB or CTSB)meta.id;instrcharIfluxObserved flux density integrated over velocity (line intensity)K.km/sphot.fluxfloate_Iflux? rms uncertainty on IfluxK.km/sstat.errorfloatnullableDV? Velocity offset (1)m/sphys.veloc;arith.diffdoublenullablee_DV? rms uncertainty on DVm/sstat.errordoublenullableTsysSystem temperatureKphys.temperatureintJ/A+A/559/A48/table8Line variability of the HCN (3-2) transition in C/2002 T7 (LINEAR)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateMid-time of the observations recorded as decimal days in May 2004dtime.epochfloatBackendBackend name (AOSA, AOSB or CTSB)meta.id;instrcharIfluxObserved flux density integrated over velocity (line intensity)K.km/sphot.fluxfloate_Iflux? rms uncertainty on IfluxK.km/sstat.errorfloatnullableDV? Velocity offset (1)m/sphys.veloc;arith.diffdoublenullablee_DV? rms uncertainty on DVm/sstat.errordoublenullableTsysSystem temperatureKphys.temperatureintJ/A+A/559/A48/listList of FITS reduced spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintfitsDownload the FITS spectrum (tabular)meta.ref.urlcharFileNameName of FITS file in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the filemeta.notecharspPlot of the spectrummeta.ref.urlcharJ/A+A/559/A48/table3*Observed flux densities integrated over velocity in comet C/2001 Q4 (NEAT)MolMoleculemeta.notecharTransTransitionmeta.id;phys.atmol.transitionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateMid-time of the observations recorded as decimal days in May 2004dtime.epochfloatn_Trans[*] * indicate blended linesmeta.notecharFreq[225/272] Transition frequency (1)GHzem.freqdoubleBackendBackend name (AOSA, AOSB or CTSB)meta.id;instrcharrmsrms noise in units of main beam brightness temperature (TmB)Kstat.stdev;instr.det.noisefloatspPlot of the spectrummeta.ref.urlcharl_IfluxLimit flag on Ifluxmeta.code.errorcharIfluxObserved flux density integrated over velocity (line intensity) (2)K.km/sphot.fluxfloate_Iflux? rms uncertainty on IfluxK.km/sstat.errorfloatnullableDV? Velocity offset (3)m/sphys.veloc;arith.diffdoublenullablee_DV? rms uncertainty on DVm/sstat.errordoublenullableVexp? Expansion velocitykm/sphys.veloc.expansionfloatnullablee_Vexp? rms uncertainty on Vexpkm/sstat.errorfloatnullablel_QLimit flag on Qmeta.code.errorcharQ? Production rate (4)mol/sstat.paramdoublenullablee_Q? rms uncertainty on Qmol/sstat.errordoublenullableFileNameName of the spectrum file in subdirectory fitsmeta.id;meta.filechar