Conundrums and constraints concerning the formation of our solar system\n -- An alternative view

We have proposed an alternative model for the formation of our solar system\nthat does not predict any mean-motion resonant interactions, planetary\nmigrations, or self-gravitating instabilities in the very early isothermal\nsolar nebula and before the protosun has formed. Within this context of\nnonviolent protoplanetary evolution over more than 10 million years, we examine\nsome conundrums and constraints that have been discovered from studies of small\nbodies in the present-day solar system (Jupiter and Neptune's Trojans and their\ndifferences from Kuiper belt objects, the irregular satellites of gaseous\ngiants, the stability of the main asteroid belt, and the Late Heavy\nBombardment). These issues that have caused substantial difficulties to models\nof violent formation do not appear to be problematic for the alternative model,\nand the reason is the complete lack of violent events during the evolution of\nprotoplanets.\n