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Are There Many Inactive Jupiter-Family Comets among the Near-Earth Asteroid Population?
Abstract We analyze the dynamical evolution of Jupiter-family (JF) comets and near-Earth asteroids (NEAs) with aphelion distances Q >3.5 AU, paying special attention to the problem of mixing of bothExpand
On the population, physical decay and orbital distribution of Jupiter family comets: Numerical simulations
Abstract We study the Jupiter family comet (JFC) population assumed to come from the Scattered Disk and transferred to the Jupiter’s zone through gravitational interactions with the Jovian planets.Expand
The origin and distribution of the Centaur population
Abstract We analyze the Centaur population as a group of objects with perihelion distances (q) of less than 30 AU and heliocentric distances outside the orbit of Jupiter, formed by objects enteringExpand
On The Origin of The High-Perihelion Scattered Disk: The Role of The Kozai Mechanism And Mean Motion Resonances
AbstractWe study the transfer process from the scattered disk (SD) to the high-perihelion scattered disk (HPSD) (defined as the population with perihelion distances q > 40 AU and semimajor axes a>50Expand
Polarimetric Observations of Small Asteroids: Preliminary Results
Abstract A campaign of polarimetric observations of small ( D h , P min ) describing the phase-polarization curve are used. The main goal of this research is to obtain an independent check on theExpand
The Buildup of a Tightly Bound Comet Cloud around an Early Sun Immersed in a Dense Galactic Environment: Numerical Experiments
We simulate numerically the buildup of a comet reservoir around the early Sun assumed to be still immersed in the placental molecular gas that gave birth to it, and to be gravitationally bound toExpand
The Existence of a Planet beyond 50 AU and the Orbital Distribution of the Classical Edgeworth–Kuiper-Belt Objects
Abstract We study the effects of a Mars-like planetoid with a semimajor axis at about ∼60 AU orbiting embedded in the primordial Edgeworth–Kuiper belt (EKB). The origin of such an object can beExpand
The scattered disk population as a source of Oort cloud comets: evaluation of its current and past role in populating the Oort cloud
Abstract We have integrated the orbits of the 76 scattered disk objects (SDOs), discovered through the end of 2002, plus 399 clones for 5 Gyr to study their dynamical evolution and the probability ofExpand
Surface composition of Hilda asteroids from the analysis of the Sloan Digital Sky Survey colors
Aims. We present the results of a taxonomic classification defined using multiband photometry of Hungaria asteroids. The aim of this work is to analyze the compositional diversity of this population.Expand
Oligarchic planetesimal accretion and giant planet formation
Aims. In the context of the core instability model, we present calculations of in situ giant planet formation. The oligarchic growth regime of solid protoplanets is the model adopted for the growthExpand