Other
Scientific paper
Sep 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997icar..129..134l&link_type=abstract
Icarus, Volume 129, Issue 1, pp. 134-146.
Other
30
Scientific paper
We assume that the asteroids were initially distributed uniformly from Mars to Jupiter. Orbits between the 3:2 resonance with Jupiter (0.763 a(J), where a(J) is Jupiter's semimajor axis) and Jupiter were chaotic because of overlapping mean motion resonances and were rapidly removed by close encounters with Jupiter. However, in numerical simulations extending as long as 10^8 years, we have been unsuccessful in removing asteroids between 0.630 and 0.763 a(J) (the 2:1 resonance and the 3:2 resonance with Jupiter), when Jupiter and Saturn were the only perturbers. We now suggest that a combination of the secular resonance between the apsidal rotations of Jupiter and the asteroids, moved outward by the gravitational potential of the primitive solar nebula and the gas drag of that nebula, removed those asteroids. A minimum mass solar nebula will move one of the secular resonances outward from its present location at 0.40 a(J) to ! the 3:2 resonance. The sweeping secular resonance pumped up the eccentricities of the asteroids causing many outer belt asteroids to be ejected by close encounters with Jupiter. The high eccentricities also increased the relative motion of the gas and the asteroids, greatly enhancing the efficiency of the drag, which caused other asteroids to spiral into the inner Solar System. That nebula, removed on a time scale of 10^4-10^5 years, cleared the asteroid belt exterior to the 2:1 resonance and increased the eccentricities of the remaining asteroids to an average value of about 0.15. We found that a much longer time scale would have removed all the asteroids, while a much shorter time scale would not have increased the initial low eccentricities.
Franklin Fred
Lecar Myron
No associations
LandOfFree
The Solar Nebula, Secular Resonances, Gas Drag, and the Asteroid Belt 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 The Solar Nebula, Secular Resonances, Gas Drag, and the Asteroid Belt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Solar Nebula, Secular Resonances, Gas Drag, and the Asteroid Belt will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1227171