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The rate of planet formation and the solar system's small bodies
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Safronov, Viktor S. |
| Copyright Year | 1991 |
| Description | The evolution of random velocities and the mass distribution of preplanetary body at the early stage of accumulation are currently under review. Arguments were presented for and against the view of an extremely rapid, runaway growth of the largest bodies at this stage with parameter values of Theta approximately greater than 10(exp 3). Difficulties are encountered assuming such a large Theta: (1) bodies of the Jovian zone penetrate the asteroid zone too late and do not have time to hinder the formation of a normal-sized planet in the asteroidal zone and thereby remove a significant portion of the mass of solid matter and (2) Uranus and Neptune cannot eject bodies from the solar system into the cometary cloud. Therefore, the values Theta less than 10(exp 2) appear to be preferable. |
| File Size | 559001 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910013656 |
| Archival Resource Key | ark:/13960/t8gf5qc29 |
| Language | English |
| Publisher Date | 1991-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Comets Terrestrial Planets Protoplanets Neptune Planet Planetary Evolution Asteroids Uranus Planet Astronomical Models Mass Distribution Planetary Mass Solar System Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
