Astronomy and Astrophysics – Astrophysics – Earth and Planetary Astrophysics
Scientific paper
2009-08-12
Astronomy and Astrophysics
Astrophysics
Earth and Planetary Astrophysics
42 pages, 12 figures
Scientific paper
10.1016/j.icarus.2009.06.008
We explore conventional Neptune migration model with one additional planet of mass at 0.1-2.0 Me. This planet inhabited in the 3:2 mean motion resonance with Neptune during planet migration epoch, and then escaped from the Kuiper belt when Jovian planets parked near the present orbits. Adding this extra planet and assuming the primordial disk truncated at about 45 AU in the conventional Neptune migration model, it is able to explain the complex structure of the observed Kuiper belt better than the usual Neptune migration model did in several respects. However, numerical experiments imply that this model is a low-probability event. In addition to the low probability, two features produced by this model may be inconsistent with the observations. They are small number of low-inclination particles in the classical belt, and the production of a remnant population with near-circular and low-inclination orbit within a = 50-52 AU. According to our present study, including one extra planet in the conventional Neptune migration model as the scenario we explored here may be unsuitable because of the low probability, and the two drawbacks mentioned above, although this model can explain better several features which is hard to produce by the conventional Neptune migration model. The issues of low-probability event and the lack of low-inclination KBOs in the classical belt are interesting and may be studied further under a more realistic consideration.
Chang Hsiang Kuang
Yeh Lun-Wen
No associations
LandOfFree
Neptune migration model with one extra planet 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 Neptune migration model with one extra planet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neptune migration model with one extra planet will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-371013