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Related papers: Planetary Trojans - the main source of short perio…

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Jupiter family comets contribute a significant amount of debris to near-Earth space. However, telescopic observations of these objects seem to suggest they have short physical lifetimes. If this is true, the material generated will also be…

The Centaurs are recent escapees from the Kuiper belt that are destined either to meet fiery oblivion in the hot inner regions of the Solar system or to be ejected to the interstellar medium by gravitational scattering from the giant…

Earth and Planetary Astrophysics · Physics 2009-11-13 David Jewitt

The Trans-Neptunian Objects (TNOs) may preserve evidence of planet building in their orbital and size-distributions. While all populations show steep size-distributions for large objects, recently relative deficit of Neptunian Trojans and…

Earth and Planetary Astrophysics · Physics 2019-01-30 Mike Alexandersen , Brett Gladman , J. J. Kavelaars , Jean-Marc Petit , Stephen Gwyn , Cory Shankman

We review the current state of knowledge of the long-term evolution of the small bodies that give rise to comets and exocomets, as well as their reservoirs. The active cometary phase is only transitory, and bodies that become comets pass…

We investigate the possible origins of real high-inclination Centaurs and trans-neptunian objects using a high-resolution statistical search for stable orbits that simulates their evolution back in time to the epoch when planet formation…

Earth and Planetary Astrophysics · Physics 2020-04-28 Fathi Namouni , Helena Morais

We review previously published and newly obtained crater size-frequency distributions in the inner solar system. These data indicate that the Moon and the terrestrial planets have been bombarded by two populations of objects. Population 1,…

Earth and Planetary Astrophysics · Physics 2015-06-22 Robert G. Strom , Renu Malhotra , Zhiyong Xiao , Takashi Ito , Fumi Yoshida , Lillian R. Ostrach

We explore the origin of a population of distant companions (~1000 - 5000 AU) to Class I protostellar sources recently found by Connelley and co-workers, who noted that the companion fraction diminished as the sources evolved. Here we…

Astrophysics of Galaxies · Physics 2015-05-20 Bo Reipurth , Seppo Mikkola , Michael Connelley , Mauri Valtonen

The Jovian Trojans are two swarms of objects located around the L$_4$ and L$_5$ Lagrange points. The population is thought to have been captured by Jupiter during the Solar system's youth. Within the swarms, six collisional families have…

Centaurs--icy bodies orbiting beyond Jupiter and interior to Neptune--are believed to be dynamically related to Jupiter Family Comets (JFCs), which have aphelia near Jupiter's orbit and perihelia in the inner Solar System. Previous…

Earth and Planetary Astrophysics · Physics 2019-10-23 Kevin R. Grazier , Jonathan Horner , Julie C. Castillo-Rogez

Centaurs are minor planets orbiting between Jupiter and Neptune that have or had crossing orbits with one or more giant planets. Recent observations and reinterpretation of previous observations have revealed the existence of ring systems…

Earth and Planetary Astrophysics · Physics 2016-09-02 Ryuki Hyodo , Sébastien Charnoz , Hidenori Genda , Keiji Ohtsuki

In this work we present the results of a suite of dynamical simulations following the orbital evolution of 8,022 hypothetical Centaur objects. These Centaurs begin our integrations on orbits in the vicinity of the 2:1 mean motion resonance…

Earth and Planetary Astrophysics · Physics 2015-03-23 Jeremy Wood , Jonathan Horner

The practical distinctions between asteroids and comets, viewed as products of accretion on either side of the snow line, are less clear-cut than previously understood. In this chapter, we discuss the numerous solar system populations which…

Earth and Planetary Astrophysics · Physics 2022-12-06 David Jewitt , Henry H. Hsieh

New insights into the history of the inner solar system are derived from the impact cratering record of the Moon, Mars, Venus and Mercury, and from the size distributions of asteroid populations. Old craters from a unique period of heavy…

Astrophysics · Physics 2009-11-13 Robert G. Strom , Renu Malhotra , Takashi Ito , Fumi Yoshida , David A. Kring

Large-scale simulations of the Centaur population are carried out. The evolution of 23328 particles based on the orbits of 32 well-known Centaurs is followed for up to 3 Myr in the forward and backward direction under the influence of the 4…

Astrophysics · Physics 2009-11-10 J. Horner , N. W. Evans , M. E. Bailey

So-called 'dark comets' are small, morphologically inactive near-Earth objects (NEOs) that exhibit nongravitational accelerations inconsistent with radiative effects. These objects exhibit short rotational periods (minutes to hours), where…

The Solar system beyond Neptune is believed to house a population of small primordial bodies left over from the planet formation process. The region up to heliocentric distance $\sim 50 AU$ (a.k.a. the Kuiper Belt) may be the source of the…

Astrophysics · Physics 2009-10-28 Renu Malhotra

The Neptune Trojans are the most recent addition to the panoply of Solar system small body populations. The orbit of the first discovered member, 2001 QR$_{322}$, was investigated shortly after its discovery, based on early observations of…

Earth and Planetary Astrophysics · Physics 2016-01-05 Jonathan Horner , Patryk Sofia Lykawka

We have numerically investigated the long term dynamical behavior of known Centaurs. This class of objects is thought to constitute the transitional population between the Kuiper Belt and the Jupiter-family comets (JFCs). In our study, we…

Astrophysics · Physics 2008-02-14 Matthew S. Tiscareno , Renu Malhotra

The current populations trapped in Neptune's main mean motion resonances in the Kuiper belt, Plutinos in the 3:2 and Twotinos in the 2:1, contain some of the best-characterized minor objects in the Solar System, given their dynamical…

Earth and Planetary Astrophysics · Physics 2026-01-28 Marco A. Muñoz-Gutiérrez , Sebastián Ramírez , Antonio Peimbert , Angeles Pérez-Villegas , Cristobal Petrovich

The orbital distribution of trans-Neptunian objects provides strong evidence for the radial migration of Neptune. The outer planets' orbits are thought to have become unstable during the early stages with Jupiter having scattering…

Earth and Planetary Astrophysics · Physics 2018-09-12 David Nesvorny , David Vokrouhlicky , William F. Bottke , Harold F. Levison