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We explore the long-term evolution of a bias-free orbital representation ofthe cometary nuclei (with diameters above 2 km) of the Kuiper belt, using theso-called L7 synthetic model from CFEPS, which consists of three dynamicalsub-populations: the Classical, the Resonant, and the Scattering. The dynamicalevolution of belt particles is studied under the gravitational influence of theSun and the four giant planets, as well as of the 34 largest knowntrans-Neptunian objects (TNOs with $H_V < 4$). Here we indistinctly call DwarfPlanets (DPs) to the full sample of 34 large TNOs. Over a 1 Gyr timescale, weanalyze the secular influence of the DPs over Kuiper belt disk particles andtheir contribution to the injection rate of new visible Jupiter Family Comets(JFCs). We found that DPs globally increase the number of JFCs by 12.6% whencompared with the comets produced by the giant planets alone. When consideringeach population separately, we find that the increment produced by DPs is 17%,12%, and 3% for the Classical, Resonant, and Scattering populations,respectively. Given the rate of escapes from the Kuiper belt, we find upperlimits to the number of objects in each population required to maintain theJFCs in steady-state; the results are $55.9\times10^6$, $78.5\times10^6$, and$274.3\times10^6$ for the Scattering, Resonant, and Classical populations,respectively. Finally, we find that the Plutinos are the most important sourceof comets which were originally in a resonant configuration, where the presenceof Pluto alone enhances by 10% the number of JFCs.

The Contribution of Dwarf Planets to the Origin of Jupiter Family Comets