Unveiling The Excess Of Slow Rotators In The Small Main Belt Asteroids

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The Small Main Belt Asteroids population displays a significant excess of slow rotators. With a sophisticated Monte Carlo model, considering the effects of YORP and collisions, we have been able to reproduce the slow rotators excess without introducing any ad-hoc latency time in the large rotation period states. A deeper analysis of these results shows how this excess is due to a non-linear interaction between the YORP effect and the collisions. No significant excess can be found by simulating the two effects alone. On the other hand, with the effects acting at the same time, whenever the rotation rate of an object is slowed down by YORP, the amount of angular momentum change imparted by the collisions against larger projectile becomes comparable to the total angular momentum of the body. This keeps the asteroid "lingering" in a slow rotation state for a comparatively large time, leading to the observed excess. This effect happens mainly for the larger objects in our sample (around 5 km of diameters). For smaller objects the YORP cycles are so short and the perturbation induced by collision so frequent and comparatively large, that the body is rapidly jumping from the two extreme states of slow and fast rotation and no accumulation is observed. Further investigations are ongoing and will be reported at the meeting.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Unveiling The Excess Of Slow Rotators In The Small Main Belt 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 Unveiling The Excess Of Slow Rotators In The Small Main Belt Asteroids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unveiling The Excess Of Slow Rotators In The Small Main Belt Asteroids will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1230491

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.