Planetary Migration and the Effects of Mean Motion Resonances on Jupiter's Trojan Asteroids

Details Planetary Migration and the Effects of Mean Motion Resonances on Jupiter's Trojan Asteroids Planetary Migration and the Effects of Mean Motion Resonances on Jupiter's Trojan Asteroids

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aj....122.3485m&link_type=abstract

The Astronomical Journal, Volume 122, Issue 6, pp. 3485-3491.

Astronomy and Astrophysics

Astronomy

10

Celestial Mechanics, Minor Planets, Asteroids, Solar System: General

Scientific paper

We present results of several numerical simulations of fictitious Trojan asteroids under different resonant configurations of the outer planets, especially between Jupiter and Saturn. Although the present outer solar system is not locked in mean motion resonances, such commensurabilities may have been temporarily attained in the past if current theories of planetary migration are correct. By studying the evolution of Trojan-like test particles under these conditions, it is possible to obtain information related to the maximum variation of the semimajor axes of the two major Jovian planets, as well as insights on the duration of the migration itself. Results show that the 2S:1J and 5S:2J Jupiter-Saturn resonances introduce large instabilities in the Trojan region. In the case of 2S:1J, a few thousand years are sufficient to expel all particles initially in tadpole orbits. For 5S:2J, these may survive for up to 106 yr. The 7S:3J commensurability, on the other hand, is much less disruptive. These results seem to indicate that the observed presence of the Jovian Trojans is compatible with a planetary migration as proposed by Han & Malhotra, in which the orbital distance between Jupiter and Saturn did not vary by more about 1 AU. Larger variations of the semimajor axes seem unlikely.

Affiliated with

Also associated with

No associations

Rating

Planetary Migration and the Effects of Mean Motion Resonances on Jupiter's Trojan Asteroids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Planetary Migration and the Effects of Mean Motion Resonances on Jupiter's Trojan Asteroids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planetary Migration and the Effects of Mean Motion Resonances on Jupiter's Trojan Asteroids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1387536