Impact angle influence in high velocity dust collisions during planetesimal formation
نویسندگان
چکیده
منابع مشابه
Secular Instability and Planetesimal Formation in the Dust Layer
Late in the gaseous phase of a protostellar disk, centimeter-sized bodies probably settle into a thin “dust layer” at the midplane. A velocity difference between the dust layer and the gas gives rise to turbulence, which prevents further settling and direct gravitational instability of the layer. The associated drag on the surface of the layer causes orbital decay in a few thousand years—as opp...
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High velocity interparticle collisions driven by ultrasound.
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We investigate the formation of planetesimals via the gravitational instability of solids that have settled to the midplane of a circumstellar disk. Vertical shear between the gas and a subdisk of solids induces turbulent mixing which inhibits gravitational instability. Working in the limit of small, well-coupled particles, we find that the mixing becomes ineffective when the surface density ra...
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ژورنال
عنوان ژورنال: Icarus
سال: 2011
ISSN: 0019-1035
DOI: 10.1016/j.icarus.2011.07.036