J/AJ/156/33ivo://CDS.VizieR/J/AJ/156/33doi:10.26093/cds/vizier.51560033CDSYu T.Y.M.Murray-Clay R.Volk K.2019-02-01T12:35:32Z2019-01-31T14:49:12ZCDS support team

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

cds-question@unistra.frsolar-systemasteroidsstellar-evolutionary-modelsA substantial fraction of our solar system's trans-Neptunian objects (TNOs) are in mean-motion resonance with Neptune. Many of these objects were likely caught into resonances by planetary migration-either smooth or stochastic- approximately 4 Gyr ago. Some, however, gravitationally scattered off of Neptune and became transiently stuck in more recent events. Here we use numerical simulations to predict the number of transiently stuck objects, captured from the current actively scattering population, that occupy 111 resonances at semimajor axes a=30-100 au. Our source population is an observationally constrained model of the currently scattering TNOs. We predict that, integrated across all resonances at these distances, the current transient-sticking population comprises 40% of the total transiently stuck+scattering TNOs, suggesting that these objects should be treated as a single population. We compute the relative distribution of transiently stuck objects across all p:q resonances with 1/6=<q/p=<1, p<40, and q<20, providing predictions for the population of transient objects with H_r_<8.66 in each resonance. We find that the relative populations are approximately proportional to each resonance's libration period and confirm that the importance of transient sticking increases with semimajor axis in the studied range. We calculate the expected distribution of libration amplitudes for stuck objects and demonstrate that observational constraints indicate that both the total number and the amplitude distribution of 5:2 resonant TNOs are inconsistent with a population dominated by transient sticking from the current scattering disk. The 5:2 resonance hence poses a challenge for leading theories of Kuiper Belt sculpting.2018AJ....156...33Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/156/33CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/astorb : Orbits of Minor Planets (Bowell+ 2010)J/ApJS/189/336 : HST astrometry of TNOs (Benecchi+, 2010)J/AJ/152/111 : A 2011-2013 survey of trans-Neptunian objectsJ/AJ/152/221 : New extreme trans-Neptunian objects (Sheppard+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/156/33https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/156/33http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/156/33https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/156/33https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/156/33http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/156/33GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AJ/156/33/table2Time spent by simulated particles between 30<a<100 au: total and by resonancerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintpp resonance (1)stat.paramcharqq resonance (1)stat.paramcharSticks-1[0/24089] Number of sticks for simulation 1ctmeta.numberintTime-1[0/38592541400] Total stick time for simulation 1yrtime.intervaldoubleFrac-1[0/1] Time-weighted fraction for simulation 1stat.fit.paramdoubleSticks-2[0/11348] Number of sticks for simulation 2ctmeta.numberintTime-2[0/237079001000] Total stick time for simulation 2yrtime.intervaldoubleFrac-2[0/1] Time-weighted fraction for simulation 2stat.fit.paramdoubleSticks-3[0/7083] Number of sticks for simulation 3ctmeta.numberintTime-3[0/1.53388095e+12] Total stick time for simulation 3yrtime.intervaldoubleFrac-3[0/1] Time-weighted fraction for simulation 3stat.fit.paramdoubleFrac-comb[2.36208182773e-06/1] Time-weighted fraction for 3 combinedstat.fit.paramdoubleJ/AJ/156/33/table3Summary of normalized transient resonance fractions and predicted absolute transient sticking populations for the range 30<a<100 aupp resonance (1)stat.paramcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintqq resonance (1)stat.paramchara[0/99.26] Semimajor axisAUphys.size.smajAxisfloatfsr[2.362082e-06/0.4032886] Fraction of scattering+stuck populationstat.paramdoublefr[5.857051e-06/1] Fraction of stuck populationstat.paramdoublefs[3.958499e-06/0.6758519] Fraction of scattering populationstat.paramdoubleN[0/7434.4] Predicted number with an H-magnitude cut H_r_<8.66ctmeta.id;meta.mainfloatJ/AJ/156/33/table1Number of simulated particles experiencing sticking at 30<a<100 auLength[1.5e+07/1e+09] Simulation lengthyrtime.intervaldoubleRes[100000/1e+07] Minimum stick resolutionyrtime.resolutionfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimID[1/3] Simulation identifiermeta.idintf_SimID[d] Flag indicating data in Table 2 for this simulation identifiermeta.codecharNpart1[3393/5126] Number of unique particles in a range (1)meta.numberintNpart2[2310/2629] Number of unique particles with >=1 stickmeta.numberintb_Time[100000/1e+08] Lower value of stick timescaleyrtime.scale;stat.minfloatB_Time[1e+06/1e+09] Upper value of stick timescaleyrtime.scale;stat.maxdoubleNstickA[52/22493] Absolute number of sticksmeta.numberintNstickN[733/1499533] Number of sticks normalized to account for the overall simulation length and test particle lossmeta.numberint