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Orbital evolution of an interplanetary dust particle under action of an interstellar gas flow is investigated. Secular time derivatives of the particle orbital elements, for arbitrary orbit orientation, are presented. An important result…

Earth and Planetary Astrophysics · Physics 2014-07-01 P. Pastor , J. Klacka , L. Komar

The question of what determines the width of Kuiper belt analogues (exoKuiper belts) is an open one. If solved, this understanding would provide valuable insights into the architecture, dynamics, and formation of exoplanetary systems.…

Earth and Planetary Astrophysics · Physics 2021-10-20 E. Miller , S. Marino , S. M. Stammler , P. Pinilla , C. Lenz , T. Birnstiel , Th. Henning

A new view of disk evolution is emerging from self-consistent numerical simulation modeling of the formation of circumstellar disks from the direct collapse of prestellar cloud cores. This has implications for many aspects of star and…

Solar and Stellar Astrophysics · Physics 2015-06-12 Shantanu Basu , Eduard I. Vorobyov

Recent observations have revealed an unexpectedly high binary fraction among the Trans-Neptunian Objects (TNOs) that populate the Kuiper-belt. The discovered binaries have four characteristics they comprise a few percent of the TNOs, the…

Astrophysics · Physics 2015-06-24 Yoko Funato , Junichiro Makino , Piet Hut , Eiichiro Kokubo , Daisuke Kinoshita

Cold Classical Kuiper belt objects (CCKBOs) are considered first-generation planetesimals that formed 42-47 au from the Sun and remained untouched since. Formation is thought to proceed by clumping of dust particles in protoplanetary disk…

Earth and Planetary Astrophysics · Physics 2025-10-31 Rixin Li , Eugene Chiang

The evolution of a protostellar binary system is investigated while it is embedded in its parent molecular cloud core and acted upon by gas drag due to dynamical friction. Approximate analytical results are obtained for the energy and…

Astrophysics · Physics 2015-06-24 U. Gorti , H. C. Bhatt

This chapter discusses the dynamical properties of the Kuiper belt population. Then, it focuses on the characteristics of the Kuiper belt that cannot be explained by its evolution in the framework of the current solar system. We review…

Astrophysics · Physics 2007-05-23 A. Morbidelli , H. F. Levison , R. Gomes

Suggestions have been made that asteroid belts may be important both for the existence of life and perhaps even for the evolution of complex life on a planet. Using numerical models for protoplanetary discs we calculate the location of the…

Earth and Planetary Astrophysics · Physics 2015-06-12 Rebecca G. Martin , Mario Livio

Context. Rotational instability of rubble-pile asteroids can trigger mass shedding, forming transient debris clouds that may provide the initial conditions for secondary formation in binary systems. Aims. We investigate the dynamical and…

Earth and Planetary Astrophysics · Physics 2025-12-16 Yutian Wu , Xiaojing Zhang , Chenyang Huang , Yang Yu

Most stars form in dense stellar environments, where frequent close encounters can strongly perturb and reshape the early architecture of planetary systems. The solar system, with its rich population of distant comets, provides a natural…

Earth and Planetary Astrophysics · Physics 2026-04-28 Santiago Torres

Kuiper Belt objects with absolute magnitude less than 3 (radius $\gtrsim$500 km), the dwarf planets, have a range of different ice/rock ratios, and are more rock-rich than their smaller counterparts. Many of these objects have moons, which…

Earth and Planetary Astrophysics · Physics 2016-05-06 Amy C. Barr , Megan E. Schwamb

The New Horizons flyby of the cold classical Kuiper Belt object MU69 showed it to be a contact binary. The existence of other contact binaries in the 1-10km range raises the question of how common these bodies are and how they evolved into…

Earth and Planetary Astrophysics · Physics 2020-11-30 Wladimir Lyra , Andrew N. Youdin , Anders Johansen

We have analyzed the first 3.75 years of data from TAOS, the Taiwanese American Occultation Survey. TAOS monitors bright stars to search for occultations by Kuiper Belt Objects (KBOs). This dataset comprises 5e5 star-hours of…

We used N-body simulations to model the 4.5 Gyr orbital evolution of the early Kuiper Belt, incorporating a massive protoplanetary disk, the four giant planets, and 1500 primordial Pluto-class bodies ("Plutos") that drove Neptune's grainy…

Earth and Planetary Astrophysics · Physics 2026-02-20 Patryk Sofia Lykawka , Jonathan Horner , Pedro Bernardinelli

The dust measured in debris disks traces the position of planetesimal belts. In our Solar System, we are also able to measure the largest planetesimals directly and can extrapolate down to make an estimate of the dust. The zodiacal dust…

Earth and Planetary Astrophysics · Physics 2014-05-14 S. M. Lawler , the CFEPS Team

In this work, we construct a new model for the collisional evolution of the main asteroid belt. Our goals are to test the scaling law of Benz and Asphaug (1999) and ascertain if it can be used for the whole belt. We want to find initial…

Earth and Planetary Astrophysics · Physics 2015-06-22 Helena Cibulková , Miroslav Brož , Paula G. Benavidez

The Haumea family is currently the only identified collisional family in the Kuiper belt. We numerically simulate the long-term dynamical evolution of the family to estimate a lower limit of the family's age and to assess how the population…

Earth and Planetary Astrophysics · Physics 2015-06-05 Kathryn Volk , Renu Malhotra

Debris disks around main-sequence stars are believed to derive from planetesimal populations that have accreted at early epochs and survived possible planet formation processes. While debris disks must contain solids in a broad range of…

Astrophysics · Physics 2009-11-13 Alexander V. Krivov , Sebastian Müller , Torsten Löhne , Harald Mutschke

The discovery of over 50 planets around evolved stars and more than 35 debris discs orbiting white dwarfs highlight the increasing need to understand small body evolution around both early and asymptotic giant branch (GB) stars. Pebbles and…

Earth and Planetary Astrophysics · Physics 2015-05-21 Dimitri Veras , Siegfried Eggl , Boris T. Gaensicke

In order to study the origin of the architectures of low mass planetary systems, we perform numerical surveys of the evolution of pairs of coplanar planets in the mass range $(1-4)\ \rmn{M}_{\oplus}.$ These evolve for up to $2\times10^7…

Earth and Planetary Astrophysics · Physics 2015-04-21 M. Xiang-Gruess , J. C. B. Papaloizou