Discovery of a Candidate Inner Oort Cloud Planetoid

@article{Brown2004DiscoveryOA,
  title={Discovery of a Candidate Inner Oort Cloud Planetoid},
  author={Michael E. Brown and Chadwick A. Trujillo and David L. Rabinowitz},
  journal={The Astrophysical Journal},
  year={2004},
  volume={617},
  pages={645-649}
}
We report the discovery of the minor planet (90377) Sedna, the most distant object ever seen in the solar system. Prediscovery images from 2001, 2002, and 2003 have allowed us to refine the orbit sufficiently to conclude that Sedna is on a highly eccentric orbit that permanently resides well beyond the Kuiper Belt with a semimajor axis of 480 ± 40 AU and a perihelion of 76 ± 4 AU. Such an orbit is unexpected in our current understanding of the solar system but could be the result of scattering… Expand

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References

SHOWING 1-10 OF 17 REFERENCES
The Formation of the Oort Cloud and the Primitive Galactic Environment
We analyze the conditions of formation of the Oort cloud from icy planetesimals scattered by the accreting outer planets. The combined effect of planetary and external perturbations is considered toExpand
Evidence for an Extended Scattered Disk
Abstract By telescopic tracking, we have established that the transneptunian object (TNO) 2000 CR 105 has a semimajor axis of 220±1 AU and perihelion distance of 44.14±0.02 AU, beyond the domainExpand
The Buildup of a Tightly Bound Comet Cloud around an Early Sun Immersed in a Dense Galactic Environment: Numerical Experiments
We simulate numerically the buildup of a comet reservoir around the early Sun assumed to be still immersed in the placental molecular gas that gave birth to it, and to be gravitationally bound toExpand
Dynamical limits on dark mass in the outer solar system
Simplified model solar systems with known observational errors are considered in conducting a dynamical search for dark mass and its minimum detectable amount, and in determining the significance ofExpand
OBSERVATIONAL LIMITS ON A DISTANT COLD KUIPER BELT
Almost all the more than 500 known Kuiper belt objects (KBOs) have been discovered within 50 AU of the Sun. One possible explanation for the observed lack of KBOs beyond 50 AU is that the distantExpand
THE DEEP ECLIPTIC SURVEY: A SEARCH FOR KUIPER BELT OBJECTS AND CENTAURS. I. DESCRIPTION OF METHODS AND INITIAL RESULTS
We report here initial results of the Deep Ecliptic Survey, an ongoing new search for Kuiper belt objects (KBOs) and Centaurs using the 8K × 8K Mosaic CCD array on the 4 m Mayall Telescope at KittExpand
The Common Origin of the High Inclination TNO's
Numerical integrations of the four major planets orbits inside a primordial planetesimals disk show that a fraction of Neptune primordial scattered objects are deposited into the classical KuiperExpand
The Formation and Extent of the Solar System Comet Cloud
The formation of the solar system comet cloud and its subsequent evolution over an interval equal to the age of the solar system are simulated. Assuming that the comets formed in the outer planetaryExpand
The Radial Distribution of the Kuiper Belt
We examine the radial distribution of the Kuiper Belt objects (KBOs) using a method that is insensitive to observational bias effects. This technique allows the use of the discovery distances of allExpand
Orbit Fitting and Uncertainties for Kuiper Belt Objects
We present a procedure for determination of positions and orbital elements, and associated uncertainties, of outer solar system planets. The orbit-fitting procedure is greatly streamlined comparedExpand
...
1
2
...