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Mon. Not. R. Astron. Soc. 379, 229246 (2007) doi:10.1111/j.1365-2966.2007.11930.x Production of trans-Neptunian binaries through chaos-assisted capture
 

Summary: Mon. Not. R. Astron. Soc. 379, 229­246 (2007) doi:10.1111/j.1365-2966.2007.11930.x
Production of trans-Neptunian binaries through chaos-assisted capture
Ernestine A. Lee,1
Sergey A. Astakhov2,3
and David Farrelly2
1FivePrime Therapeutics, 1650 Owens Street, Suite 200, San Francisco, CA 94158-2216, USA
2Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322-0300, USA
3UniqueICs, Stroiteley 1, Saratov 410044, Russia
Accepted 2007 May 1. Received 2007 April 30; in original form 2007 January 30
ABSTRACT
The recent discovery of binary objects in the Kuiper Belt opens an invaluable window into past
and present conditions in the trans-Neptunian part of the Solar System. For example, knowledge
of how these objects formed can be used to impose constraints on planetary formation theories.
We have recently proposed a binary object formation model based on the notion of chaos-
assisted capture (CAC). In this model two potential binary partners may become trapped
for long times inside chaotic layers within their mutual Hill sphere. The binary may then be
captured permanently through gravitational scattering with a third `intruder' body. The creation
of binaries having similarly sized partners is an ab initio prediction of the model which also
predicts large binary semimajor axes and moderately eccentric mutual orbits similar to those
observed. Here we present a more detailed analysis with calculations performed in the spatial

  

Source: Astakhov, Sergey - John von Neumann Institute for Computing, Forschungszentrum Jülich

 

Collections: Computer Technologies and Information Sciences; Physics