Mathematics – Probability
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996dps....28.1108i&link_type=abstract
American Astronomical Society, DPS meeting #28, #11.08; Bulletin of the American Astronomical Society, Vol. 28, p.1108
Mathematics
Probability
Scientific paper
We investigated the effect of collisional disruption of planetesimals on the growth of a protoplanet. Fragments created by collisional disruption collide with a protoplanet at fairly high probability because of their small inclination. Thus, the growth of a protoplanet is accelerated due to the collisional disruption. Wetherill and Stewart(1993, Icarus 106, 190-209) performed numerical simulations of planetary accretion, taking into account the disruption of planetesimals. Their results showed that the effect of the disruption enhances the growth rate of protoplanets by the factor 3. However, in their simulation, it is not clear how general the enhance factor is. In the present study, we adopted a simple mass distribution of fragments obtained under the assumption of the steady state, and analytically calculated the enhance factor of the growth rate. Then we obtained the dependence of factor on various parameters. Our result almost reproduced that of Wetherill and Stewart(1993), which justifies our simple model. In our simulation, we also took into account the distribution of inclination of fragments, which is neglected in Wetherill and Stewart(1993). This further enhanced the collisional probability of fragments.
Inaba Satoshi
Nakazawa Kazuhiro
Tanaka Hajime
No associations
LandOfFree
Acceleration of Runaway Growth Due to Collisional Disruption 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 Acceleration of Runaway Growth Due to Collisional Disruption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acceleration of Runaway Growth Due to Collisional Disruption will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1461496