An Oort cloud origin for the high-inclination, high-perihelion Centaurs

Details An Oort cloud origin for the high-inclination, high-perihelion Centaurs An Oort cloud origin for the high-inclination, high-perihelion Centaurs

2011-11-30

arxiv.org/abs/1111.7037v1

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

Accepted for publication in MNRAS

Scientific paper

We analyse the origin of three Centaurs with perihelia in the range 15 AU to 30 AU, inclinations above 70 deg and semi-major axes shorter than 100 AU. Based on long-term numerical simulations we conclude that these objects most likely originate from the Oort cloud rather than the Kuiper Belt or Scattered Disc. We estimate that there are currently between 1 and 200 of these high-inclination, high-perihelion Centaurs with absolute magnitude H<8.

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