The Origin of Halley-Type Comets: Probing the Inner Oort Cloud

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Debiased Orbital and Absolute Magnitude Distribution of the Near-Earth Objects (2002, methodology): “The orbital components of test bodies from these simulations are often similar to observed Halley-family comets (Levison et al. 2001).”
Origin and Evolution of Near-Earth Objects (2002, background): “To explain the orbital distribution of the observed population, several researchers have postulated that the comets from the Oort Cloud rapidly “fade” away, either becoming inactive or splitting into small components (Wiegert and Tremaine, 1999; Levison et al., 2001).”
Origin and Evolution of Short-period Comets (2017, methodology): “Then, from Levison et al. (2001) (see also Heisler & Tremaine 1986, Wiegert & Tremaine 1999), we have that the Galactic tidal acceleration is given by: Ftide = Ω 2 0 [ (1− 2δ)xex − yey − ( 4πGρ0 Ω20 − 2δ ) zez ] , (2) where δ = −(A + B)/(A − B), A and B are the Oort constants, G is the…”
Oort cloud and Scattered Disc formation during a late dynamical instability in the Solar System (2012, methodology): “emaine, 1999). Thereexisttwo agentswhichperturbthecometsinthe cloud ontoorbitsthat enterthe innersolarsystem: passingstars (Weissman, 1980;Hills, 1981)andtheGalactic tide(Heisler& Tremaine, 1986; Levison et al., 2001). The passing stars cause usually small random deviations in the orbital energy”