The Plane of the Kuiper Belt

Details The Plane of the Kuiper Belt The Plane of the Kuiper Belt

Apr 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aj....127.2418b&link_type=abstract

The Astronomical Journal, Volume 127, Issue 4, pp. 2418-2423.

Astronomy and Astrophysics

Astronomy

12

Kuiper Belt, Solar System: General

Scientific paper

We present a robust method for measuring the effective plane of the Kuiper belt. The derived plane has an inclination with respect to the ecliptic of 1.86d and an ascending node of 81.6d, with a 1 σ error in pole position of the plane of 0.37d. The plane of the Kuiper belt is inconsistent with the invariable plane, the plane of Jupiter, and the plane of Neptune at the greater than 3 σ level. Using linear secular perturbation theory, we show that the plane of the Kuiper belt is expected to oscillate about the position of the invariable plane with a period of 1.9 million years and an amplitude of 1.2d. The present predicted position of the plane of the Kuiper belt has an inclination with respect to the ecliptic of 1.74d and an ascending node of 86.7d, within 0.20d of our measured position.

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