What is the current scientific consensus regarding the source of initial planetesimal material compared to the original Chamberlin-Moulton trigger event?

Answer

Planetesimals formed in situ within a large, rotating disk left over from the Sun's formation

While the *mechanism* of accretion from planetesimals remains fundamental, the *source* of those planetesimals has shifted dramatically in modern theory. The idea that an external passing star physically ripped material from the Sun is largely discarded. Current understanding favors an internally self-contained process: planetesimals formed directly within the massive, rotating protoplanetary disk of gas and dust that surrounded the Sun immediately following its birth. This aligns the planetary formation process more continuously with the Sun's initial formation history, contrasting sharply with the externally triggered scenario proposed by Chamberlin and Moulton.

What is the current scientific consensus regarding the source of initial planetesimal material compared to the original Chamberlin-Moulton trigger event?

Related Questions

What is the formal name often used for what is commonly called the planetesimal theory?Which two key figures are attributed with the development of the detailed mechanism known as the Chamberlin-Moulton Planetesimal Hypothesis?What critical external event did the Chamberlin-Moulton formulation hypothesize as the catalyst to source the initial material for planet formation?In the Chamberlin-Moulton view, what fundamental force provided the initial impetus for ejecting material from the Sun to form planetary precursors?What process is defined as the mechanism of building up larger bodies from the fundamental building blocks called planetesimals?What characteristic was crucial for collisions between orbiting planetesimals to facilitate growth rather than destruction?Which issue concerning the solar system's distribution of momentum did the Chamberlin-Moulton model successfully address that troubled the classical Nebular Hypothesis?What compositional difference exists between planetesimals forming close to the Sun versus those forming beyond the 'frost line'?In the provided stages of growth, what dominant process characterized Stage 4, involving objects ranging from Moon-sized to Planet-sized?What is the current scientific consensus regarding the source of initial planetesimal material compared to the original Chamberlin-Moulton trigger event?
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