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Within the dynamically cold low inclination portion of the Classical Kuiper Belt, there exists a population of weakly bound binary systems with a number of unusual properties; most notable of which is their extremely wide orbital…

地球与行星天体物理 · 物理学 2022-12-28 Hunter M. Campbell , Lukas R. Stone , Nathan A. Kaib

The low-inclination component of the Classical Kuiper Belt is host to a population of extremely widely-separated binaries. These systems are similar to other Trans-Neptunian binaries (TNBs) in that the primary and secondary components of…

地球与行星天体物理 · 物理学 2015-05-30 Alex H. Parker , JJ. Kavelaars , Jean-Marc Petit , Lynne Jones , Brett Gladman , Joel Parker

The non-resonant Kuiper belt objects (KBOs) between the 3:2 and 2:1 Neptunian mean motion resonances can be largely divided between a cold classical belt (CCB) and a hot classical belt (HCB). A notable difference between these two…

地球与行星天体物理 · 物理学 2021-07-07 Lukas R Stone , Nathan A Kaib

The dynamically cold component of the Kuiper Belt is host to a population of very widely separated, near-equal mass binary systems. Such binaries, representing the tail of the separation distribution of the more common, more tightly-bound…

地球与行星天体物理 · 物理学 2012-07-04 Alex H. Parker

Binaries have played a crucial role many times in the history of modern astronomy and are doing so again in the rapidly evolving exploration of the Kuiper Belt. The large fraction of transneptunian objects that are binary or multiple, 48…

天体物理学 · 物理学 2007-05-23 Keith S. Noll , William M. Grundy , Eugene I. Chiang , Jean-Luc Margot , Susan D. Kern

Observations of the Kuiper Belt indicate that a larger than expected percentage of KBO's (approximately 8 out of 500) are in binary pairs. The formation and survival of such objects presents a conundrum [1]. Two competing theories have been…

空间物理 · 物理学 2007-05-23 R. C. Nazzario , T. W. Hyde

It appears that at least several percent of large Kuiper belt objects are members of wide binaries. Physical collisions are too infrequent to account for their formation. Collisionless gravitational interactions are more promising. These…

天体物理学 · 物理学 2009-11-07 Peter Goldreich , Yoram Lithwick , Re'em Sari

The size distribution in the cold classical Kuiper belt can be approximated by two idealized power laws: one with steep slope for radii R>R* and one with shallow slope for R<R*, where R*~25-50 km. Previous works suggested that the SFD…

地球与行星天体物理 · 物理学 2015-05-27 David Nesvorny , David Vokrouhlicky , William F. Bottke , Keith Noll , Harold F. Levison

Nearly one-third of objects occupying the most circular, coplanar Kuiper belt orbits (the cold classical belt) are binary, and several percent of them are "ultra-wide" binaries (UWBs): 100-km-sized companions spaced by tens of thousands of…

地球与行星天体物理 · 物理学 2024-11-18 Hunter M. Campbell , Kalee E. Anderson , Nathan A. Kaib

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…

天体物理学 · 物理学 2015-06-24 Yoko Funato , Junichiro Makino , Piet Hut , Eiichiro Kokubo , Daisuke Kinoshita

As indicated by their special characteristics, the cold classical Kuiper belt objects (KBOs) formed and survived at 42-47 au. Notably, they show a large fraction of equal-size binaries whose formation is probably related to the accretion of…

地球与行星天体物理 · 物理学 2019-05-29 David Nesvorny , David Vokrouhlicky

The discovery that many trans-neptunian objects exist in pairs, or binaries, is proving invaluable for shedding light on the formation, evolution and structure of the outer Solar system. Based on recent systematic searches it has been…

天体物理学 · 物理学 2007-05-23 Sergey A. Astakhov , Ernestine A. Lee , David Farrelly

The existence of extremely wide binaries in the low-inclination component of the Kuiper Belt provides a unique handle on the dynamical history of this population. Some popular frameworks of the formation of the Kuiper Belt suggest that…

地球与行星天体物理 · 物理学 2015-05-20 Alex H. Parker , JJ Kavelaars

The discovery of binaries in each of the major populations of minor bodies in the solar system is propelling a rapid growth of heretofore unattainable physical information. The availability of mass and density constraints for minor bodies…

天体物理学 · 物理学 2009-11-11 Keith S. Noll

The Oort Cloud, the Kuiper Belt and the Scattered Disk are dynamically distinct populations of small bodies evolving in the outer regions of the Solar System. Whereas their collisional activity is now quiet, gravitational interactions with…

天体物理学 · 物理学 2009-03-19 S. Charnoz A. Morbidelli

This chapter summarizes analytic theory and numerical calculations for the formation and collisional evolution of KBOs at 20--150 AU. We describe the main predictions of a baseline self-stirring model and show how dynamical perturbations…

天体物理学 · 物理学 2007-05-23 Scott J. Kenyon , Benjamin C. Bromley , David P. O'Brien , Donald R. Davis

A large fraction of 100-km-class low-inclination objects in the classical Kuiper Belt (KB) are binaries with comparable mass and wide separation of components. A favored model for their formation was capture during the coagulation growth of…

地球与行星天体物理 · 物理学 2015-05-19 David Nesvorny , Andrew N. Youdin , Derek C. Richardson

Recent observations (Burnes et al 2002,Veillet et al 2002, Margot et al 2002a) have revealed an unexpectedly high binary fraction among the Trans-Neptunian Objects (TNOs) that populate the Kuiper Belt. The TNO binaries are strikingly…

天体物理学 · 物理学 2007-05-23 Yoko Funato , Junichiro Makino , Piet Hut , Eiichiro Kokubo , Daisuke Kinoshita

Increasing observations of white dwarf atmospheric pollution and disrupting planetesimals is driving increased studies into the fate of exo-asteroids around post-main-sequence stars. Planetesimal populations in the Solar System which are…

地球与行星天体物理 · 物理学 2023-02-15 Catriona H. McDonald , Dimitri Veras

We show the effects of the perturbation caused by a passing by star on the Kuiper belt objects (KBOs) of our Solar System. The dynamics of the Kuiper belt (KB) is followed by direct $N$-body simulations. The sampling of the KB has been done…

地球与行星天体物理 · 物理学 2015-06-19 D. Punzo , R. Capuzzo-Dolcetta , S. Portegies Zwart
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