Capture of 20 km/s approach velocity interstellar comets by three-body interactions in the planetary system

Details Capture of 20 km/s approach velocity interstellar comets by three-body interactions in the planetary system Capture of 20 km/s approach velocity interstellar comets by three-body interactions in the planetary system

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....92..171t&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 92, July 1986, p. 171-175.

Astronomy and Astrophysics

Astronomy

6

Comets, Gravitational Effects, Interstellar Space, Jupiter (Planet), Solar System, Three Body Problem, Astronomical Coordinates, Capture Effect, Cross Sections, Orbit Perturbation, Solar Orbits

Scientific paper

Interstellar comets with velocities at infinity of 20 km s-1 can be captured by three-body interactions within the planetary system. A semianalytic method is presented indicating that Jupiter is the only planet capable of scattering these comets into bound orbits. The time-averaged cross section for this process seems to be roughly five times the area of Jupiter. With an observational upper limit on interstellar comets of ≡1013pc-3, the resulting capture rate amounts to only one comet every 60 Myr.

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