J/MNRAS/472/4634ivo://CDS.VizieR/J/MNRAS/472/4634doi:10.26093/cds/vizier.74724634CDSKrolikowska M.Dybczynski P.A.2024-08-17T20:21:07Z2017-10-13T09:44:49ZCDS support team

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

cds-question@unistra.frsolar-systemcometsThe complete sample of large-perihelion nearly-parabolic comets discovered during the period 1901-2010 is studied, starting with their orbit determination. Next, an orbital evolution that includes three perihelion passages (previous-observed-next) is investigated in which a full model of Galactic perturbations and perturbations from passing stars is incorporated. We show that the distribution of planetary perturbations suffered by actual large-perihelion comets during their passage through the Solar system has a deep, unexpected minimum around zero, which indicates a lack of 'almost unperturbed' comets. Using a series of simulations we show that this deep well is moderately resistant to some diffusion of the orbital elements of the analysed comets. It seems reasonable to assert that the observed stream of these large perihelion comets experienced a series of specific planetary configurations when passing through the planetary zone. An analysis of the past dynamics of these comets clearly shows that dynamically new comets can appear only when their original semimajor axes are greater than 20000au. On the other hand, dynamically old comets are completely absent for semimajor axes longer than 40000au. We demonstrate that the observed 1/a_ori_-distribution exhibits a local minimum separating dynamically new from dynamically old comets. Long-term dynamical studies reveal a wide variety of orbital behaviour. Several interesting examples of the action of passing stars are also described, in particular the impact of Gliese 710, which will pass close to the Sun in the future. However, none of the obtained stellar perturbations is sufficient to change the dynamical status of the analysed comets.2017MNRAS.472.4634Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/472/4634CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/567/A126 : Warsaw Catalogue of cometary orbits (Krolikowska, 2014)J/A+A/571/A63 : New catalogue of one-apparition comets (Krolikowska+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/472/4634https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/472/4634http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/472/4634https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/472/4634https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/472/4634http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/472/4634GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/MNRAS/472/4634/tablea1Description of observational material and the new orbital quality assessment for 100 near-parabolic cometsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAstOrbDisplay the Catalog of Comets (Cat. B/comets) datameta.ref.urlcharDesigComet's designationmeta.id;meta.maincharCnameComet's designationmeta.idcharqoscOsculating perihelion distanceAUpos.distance;src.orbital.periastronfloatTPerihelion date, [TT] (G1)src.orbital.periastronarc1Date of the first observation, [TT] (G1)time.epocharc2Date of the last observation, [TT] (G1)time.epochNobsNumber of observations taken into accountmeta.noteintarcYInterval of data (arc in years)yrtime.intervalfloatdh1Heliocentric distance of the first observationAUpos.distance;obs.param;obsfloatdh2Heliocentric distance of the last observationAUpos.distance;obs.param;obsfloatDataData type in the sense of time-distributionmeta.codecharModelModel type (gravitational or non-gravitational)meta.notecharQ*GRAccuracy of gravitational orbitmeta.code.qualfloatQ*NG? Accuracy of non-gravitational orbit when determinablemeta.code.qualfloatnullableQlnewNew quality orbit assessmentmeta.code.qualcharrmsRoot-mean-square errorarcsecstat.stdev;instr.det.noisefloatResNumber of residuals taken for orbit determination for a given modelmeta.numberintRefReferences to the solution (G2)meta.ref;stat.fitcharJ/MNRAS/472/4634/tableb1*Heliocentric orbital elements of osculating orbits for 100 comets given in Table A1eEccentricitysrc.orbital.eccentricitydoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDesigComet's designationmeta.id;meta.maincharEpochEpoch of osculation (G1)time.epochTPerihelion time, [TT] (G1)src.orbital.periastrone_TUncertainty of Perihelion time in daysdstat.errordoubleqPerihelion distanceAUpos.distance;src.orbital.periastrondoublee_qUncertainty of perihelion distanceAUstat.errordoublee_eUncertainty of eccentricitystat.errordoubleArgArgument of perihelion, {omega} (J2000)degsrc.orbital.periastrondoublee_ArgUncertainty of argument of perihelion (J2000)degstat.errordoubleLongLongitude of the ascending node, {OMEGA} (J2000)degsrc.orbital.nodedoublee_LongUncertainty of longitude of the ascending nodedegstat.errordoubleiInclination (J2000)degsrc.orbital.inclinationdoublee_iUncertainty of inclination (J2000)degstat.errordouble1/aInverse of semimajor axis (1/a_osc_) (J2000)1e-06AU**-1phys.angSize.smajAxis;src.orbitaldoublee_1/aInverse of semimajor axis1e-06AU**-1stat.errorfloatJ/MNRAS/472/4634/tablec1*Barycentric orbital elements of original orbits, for 100 near-parabolic comets given in Table A1eEccentricitysrc.orbital.eccentricitydoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDesigComet's designationmeta.id;meta.maincharEpochEpoch of osculation (G1)time.epochTPerihelion time, [TT] (G1)src.orbital.periastrone_TUncertainty of Perihelion time in daysdstat.errordoubleqPerihelion distanceAUpos.distance;src.orbital.periastrondoublee_qUncertainty of perihelion distanceAUstat.errordoublee_eUncertainty of eccentricitystat.errordoubleArgArgument of perihelion, {omega} (J2000)degsrc.orbital.periastrondoublee_ArgUncertainty of argument of perihelion (J2000)degstat.errordoubleLongLongitude of the ascending node, {OMEGA} (J2000)degsrc.orbital.nodedoublee_LongUncertainty of longitude of the ascending nodedegstat.errordoubleiInclination (J2000)degsrc.orbital.inclinationdoublee_iUncertainty of inclination (J2000)degstat.errordouble1/aInverse of semimajor axis (1/a_osc_) (J2000)1e-06AU**-1phys.angSize.smajAxis;src.orbitaldoublee_1/aInverse of semimajor axis1e-06AU**-1stat.errorfloatJ/MNRAS/472/4634/tabled1Barycentric orbital elements of future orbits, for 100 near-parabolic comets given in Table A1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDesigComet's designationmeta.id;meta.maincharEpochEpoch of osculation (G1)time.epochTPerihelion time, [TT] (G1)src.orbital.periastrone_TUncertainty of Perihelion time in daysdstat.errordoubleqPerihelion distanceAUpos.distance;src.orbital.periastrondoublee_qUncertainty of perihelion distanceAUstat.errordoubleeEccentricitysrc.orbital.eccentricitydoublee_eUncertainty of eccentricitystat.errordoubleArgArgument of perihelion, {omega} (J2000)degsrc.orbital.periastrondoublee_ArgUncertainty of argument of perihelion (J2000)degstat.errordoubleLongLongitude of the ascending node, {OMEGA} (J2000)degsrc.orbital.nodedoublee_LongUncertainty of longitude of the ascending nodedegstat.errordoubleiInclination (J2000)degsrc.orbital.inclinationdoublee_iUncertainty of inclination (J2000)degstat.errordouble1/aInverse of semimajor axis (1/a_osc_) (J2000)1e-06AU**-1phys.angSize.smajAxis;src.orbitaldoublee_1/aInverse of semimajor axis1e-06AU**-1stat.errorfloatJ/MNRAS/472/4634/tablee3Barycentric orbital elements at previous perihelionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDesigComet's designationmeta.id;meta.maincharRNumber of returning VCs in the swarmmeta.numberintn_R[*] '*' means nominal solution is among returning part of swarmmeta.notecharENumber of escaping VCs in the swarmmeta.numberintn_E[*] '*' means nominal solution is among escaping part of swarmmeta.notecharHNumber of hyperbolas among escaping VCs in the swarmmeta.numberintn_H[*] '*' means nominal solution is among hyperbolic part of swarmmeta.notechar1/a1-10Inverse of the semimajor axis (1/a_prev_ or 1/a_next)): first decile or mean value (in 10-6AU^-1^ unit) (G3)1e-06AU**-1phys.angSize.smajAxis;src.orbitaldouble1/a1-50Inverse od the semimajor axis: median or standard deviation (in 10-6AU^-1^ unit)(G3)1e-06AU**-1phys.angSize.smajAxis;src.orbitalfloat1/a1-90? Inverse of the semimajor axis: third decile (in 10-6AU^-1^ unit) (G3)1e-06AU**-1phys.angSize.smajAxis;src.orbitalfloatnullable1/a1R[R] 'R' means that the result for the inverse of the semimajor axis is for a returning part of the swarm onlymeta.codecharq10Perihelion distance (q_prev_ or q_next_): first decile or mean value (G3)aupos.distance;src.orbitaldoubleq50Perihelion distance: median or standard deviation (G3)aupos.distance;src.orbitaldoubleq90? Perihelion distance:: third decile (G3)aupos.distance;src.orbitaldoublenullableqR[R] 'R' means that the result for the perihelion distance is for a returning part of the swarm onlymeta.codecharQ10? Aphelion distance (Q_prev_ or Q_next_): first decile or mean value (G3)1000aupos.distance;src.orbitaldoublenullableQ50? Aphelion distance: median or standard deviation (G3)1000aupos.distance;src.orbitaldoublenullableQ90? Aphelion distance: third decile (G3)1000aupos.distance;src.orbitalfloatnullableQR[R] 'R' means that the result for the aphelion distance is for a returning part of the swarm only.meta.codechart10Time interval to previous perihelion (Time_prev_ or Time_next_): first decile or mean value (G3)Myrsrc.orbital.periastrondoublet50Time interval to previous perihelion: median or standard deviation (G3) (1)Myrsrc.orbital.periastron;stat.mediandoublet90? Time interval to previous perihelion: third decile (G3)Myrsrc.orbital.periastronfloatnullabletR[R] 'R' means that the result for the time interval is for a returning part of the swarm onlymeta.codecharp1? Percentage of VCs with q<10%meta.noteintnullablep2? Percentage of VCs with 10<q<20%meta.noteintnullablep3? Percentage of VCs with q>20%meta.noteintnullableStatCode for the dynamical status (2)meta.codecharJ/MNRAS/472/4634/tablef3Barycentric orbital elements at next perihelionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDesigComet's designationmeta.id;meta.maincharRNumber of returning VCs in the swarmmeta.numberintn_R[*] '*' means nominal solution is among returning part of swarmmeta.notecharENumber of escaping VCs in the swarmmeta.numberintn_E[*] '*' means nominal solution is among escaping part of swarmmeta.notecharHNumber of hyperbolas among escaping VCs in the swarmmeta.numberintn_H[*] '*' means nominal solution is among hyperbolic part of swarmmeta.notechar1/a1-10Inverse of the semimajor axis (1/a_prev_ or 1/a_next)): first decile or mean value (in 10-6AU^-1^ unit) (G3)1e-06AU**-1phys.angSize.smajAxis;src.orbitaldouble1/a1-50Inverse od the semimajor axis: median or standard deviation (in 10-6AU^-1^ unit)(G3)1e-06AU**-1phys.angSize.smajAxis;src.orbitalfloat1/a1-90? Inverse of the semimajor axis: third decile (in 10-6AU^-1^ unit) (G3)1e-06AU**-1phys.angSize.smajAxis;src.orbitalfloatnullable1/a1R[R] 'R' means that the result for the inverse of the semimajor axis is for a returning part of the swarm onlymeta.codecharq10Perihelion distance (q_prev_ or q_next_): first decile or mean value (G3)aupos.distance;src.orbitaldoubleq50Perihelion distance: median or standard deviation (G3)aupos.distance;src.orbitaldoubleq90? Perihelion distance:: third decile (G3)aupos.distance;src.orbitaldoublenullableqR[R] 'R' means that the result for the perihelion distance is for a returning part of the swarm onlymeta.codecharQ10? Aphelion distance (Q_prev_ or Q_next_): first decile or mean value (G3)1000aupos.distance;src.orbitaldoublenullableQ50? Aphelion distance: median or standard deviation (G3)1000aupos.distance;src.orbitaldoublenullableQ90? Aphelion distance: third decile (G3)1000aupos.distance;src.orbitalfloatnullableQR[R] 'R' means that the result for the aphelion distance is for a returning part of the swarm only.meta.codechart10Time interval to previous perihelion (Time_prev_ or Time_next_): first decile or mean value (G3)Myrsrc.orbital.periastrondoublet50Time interval to previous perihelion: median or standard deviation (G3) (1)Myrsrc.orbital.periastron;stat.mediandoublet90? Time interval to previous perihelion: third decile (G3)Myrsrc.orbital.periastronfloatnullabletR[R] 'R' means that the result for the time interval is for a returning part of the swarm onlymeta.codecharp1? Percentage of VCs with q<10%meta.noteintnullablep2? Percentage of VCs with 10<q<20%meta.noteintnullablep3? Percentage of VCs with q>20%meta.noteintnullableStatCode for the dynamical status (2)meta.codechar