Discovery of a low-eccentricity, high-inclination Kuiper belt object at 58 AU
arXiv:astro-ph/0512430 · doi:10.1086/503098
Abstract
We report the discovery of the first trans-neptunian object, designated 2004 XR190, with a nearly-cirular orbit beyond the 2:1 mean-motion resonance. Fitting an orbit to 23 astrometric observations spread out over 12 months yields an orbit of a=57.2\pm0.4, e=0.08\pm0.04, and i=46.6 deg. All viable orbits have perihelia distances q>49 AU. The very high orbital inclination of this extended scattered disk object might be explained by several models, but its existence again points to a large as-yet undiscovered population of transneptunian objects with large orbital perihelia and inclination.
arXiv comment3 figures, submitted to ApJL
References in corpus (10)
- Orbital Evolution of Planets Embedded in a Planetesimal Disk
- Discovery of a candidate inner Oort cloud planetoid
- Properties of the Trans-Neptunian Belt: Statistics From the CFHT Survey
- Neptune's Migration into a Stirred-Up Kuiper Belt: A Detailed Comparison of Simulations to Observations
- Evidence for an extended scattered disk
- Scenarios for the Origin of the Orbits of the Trans-Neptunian Objects 2000 CR105 and 2003 VB12
- Evidence for early stellar encounters in the orbital distribution of Edgeworth-Kuiper Belt objects
- Orbit Fitting and Uncertainties for Kuiper Belt Objects
- Stellar encounters as the origin of distant solar system objects in highly eccentric orbits
- The Edge of the Solar System
Cited by in corpus (11)
- The Canada-France Ecliptic Plane Survey - Full Data Release: The orbital structure of the Kuiper belt
- The Evidence for Slow Migration of Neptune from the Inclination Distribution of Kuiper Belt Objects
- An Outer Planet Beyond Pluto and Origin of the Trans-Neptunian Belt Architecture
- Tracking Neptune's Migration History through High-Perihelion Resonant Trans-Neptunian Objects
- The Colors of Extreme Outer Solar System Objects
- The Canada-France Ecliptic Plane Survey (CFEPS) - High Latitude Component
- Beyond the Kuiper Belt Edge: New High Perihelion Trans-Neptunian Objects With Moderate Semi-major Axes and Eccentricities
- The 5:1 Neptune Resonance as Probed by CFEPS: Dynamics and Population
- A study of the high-inclination population in the Kuiper belt -- 1. The Plutinos
- Dynamical formation of detached trans-Neptunian objects close to the 2:5 and 1:3 mean motion resonances with Neptune
- Astrophysics in 2006