posted on Sep, 17 2006 @ 03:05 AM
Originally posted by Stratrf_Rus
This is a retarded claim, it in no way attempts to justify how chemically another planet will form more "earthlike" because a Jupiter-sized planet
is nearer to the Sun (something which didn't occur in our case, how odd?)
That's because it's only a news bulletin. If you read the actual paper and understood the physics behind the formation of planetary systems, you
would see that the Hot Jupiters that form in close, or migrate in from the outer areas of the accretion disks can create conditons which enhance the
formation of smaller planets in the inner disks. They can also destroy newly forming planets in the inner disk as well, via collisions and/or
gravitational slingshotting them out of the disks. It entirely depends on the dynamics of the disks and what is occuring at the time of the formation
of the Hot Jupiters. Simulation after simulation has shown this to be the case, that Earth like planets can form where Hot Jupiters are present,
depending on the conditions and circumstances present in the accretion disks.
It didn't happen here because the accretion disk around the Sun was less massive and dense than the ones which formed the Hot Jupiters around the
other stars. These stars are richer in metals than what the Sun is, as a whole, so their accretion disks had more material to begin with. The Sun and
the planets cleared the area within the Solar System quickly, thereby not giving Jupiter, or Saturn a chance to migrate inwards to any substantial
distance. Not only that, Uranus and Neptune moved further out, thereby dragging a lot of material with them.
[edit on 17-9-2006 by GhostITM]