Mutual orbit orientations of transneptunian binaries

  title={Mutual orbit orientations of transneptunian binaries},
  author={William M. Grundy and Keith S. Noll and H. Roe and Marc W. Buie and Simon B. Porter and Alex H. Parker and David Nesvorn{\'y} and Harold F. Levison and Susan D. Benecchi and Denise Catherine Stephens and Chad Trujillo},

Orbits and Occultation Opportunities of 15 TNOs Observed by New Horizons

We present high-precision orbits for 15 trans-Neptunian objects (TNOs) that have been observed by NASA’s New Horizons spacecraft at distances from 0.092 to 2.2 au. We also give predictions of 66

On the Origin of the Pluto System

For six decades following its discovery, Pluto was the only known Sun-orbiting world in the dynamical vicinity of Neptune. An early origin concept postulated that Neptune originally had two large

High-resolution Search for Kuiper Belt Object Binaries from New Horizons

Using the New Horizons LOng Range Reconnaissance Imager camera, we searched for satellites near five Kuiper Belt objects (KBOs): four cold classicals (CCs: 2011 JY31, 2014 OS393, 2014 PN70, 2011

Trans-Neptunian binaries as evidence for planetesimal formation by the streaming instability

A critical step toward the emergence of planets in a protoplanetary disk is the accretion of planetesimals, bodies 1–1,000 km in size, from smaller disk constituents. This process is poorly

The solar nebula origin of (486958) Arrokoth, a primordial contact binary in the Kuiper Belt

The age, composition, and formation process of the most pristine object yet visited by a spacecraft is determined, and stresses in the neck region today are compatible with the structural integrity of Arrokoth for densities and material strengths similar to those observed in comets, but at mass scales ~1000 times the mass of typical cometary nuclei.

Very Slow Rotators from Tidally Synchronized Binaries

A recent examination of K2 lightcurves indicates that ∼15% of Jupiter Trojans have very slow rotation (spin periods Ps > 100 hr). Here we consider the possibility that these bodies formed as

The wide-binary origin of (2014) MU69-like Kuiper belt contact binaries

It is shown that semi-secular perturbations operating on only ultrawide KBO binaries close to their stability limit can robustly lead to gentle, slow binary mergers at arbitrarily high obliquities but low rotational velocities, reproduce the characteristics of MU69 and other similar oblique contact binaries.

The Effect of Gravitational Encounters on Binary Planetesimals

Binary planetesimals in the Kuiper belt can experience close encounters with other bodies. These encounters can disturb the orbital dynamics of the binary in several ways. Energy can be added to the



Mutual events in the Cold Classical transneptunian binary system Sila and Nunam

TNOs are Cool: A Survey of the Transneptunian Region

Over one thousand objects have so far been discovered orbiting beyond Neptune. These trans-Neptunian objects (TNOs) represent the primitive remnants of the planetesimal disk from which the planets

The binary Kuiper-belt object 1998 WW31

It is reported that the Kuiper-belt object 1998 WW31 is binary with a highly eccentric orbit (eccentricity e ≈ 0.8) and a long period (about 570 days), very different from the Pluto/Charon system, which was hitherto the only previously known binary in theKuiper belt.

“TNOs are Cool”: A survey of the trans-Neptunian region

Context. A group of trans-Neptunian objects (TNOs) are dynamically related to the dwarf planet 136108 Haumea. Ten of them show strong indications of water ice on their surfaces, are assumed to have