Planetesimal Formation Induced by Sintering

Details Planetesimal Formation Induced by Sintering Planetesimal Formation Induced by Sintering

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011apj...733l..41s&link_type=abstract

The Astrophysical Journal Letters, Volume 733, Issue 2, article id. L41 (2011).

Astronomy and Astrophysics

Astronomy

2

Planets And Satellites: Formation, Protoplanetary Disks

Scientific paper

Sintering of H2O ice proceeds in an icy dust aggregate as the temperature increases due to the infall to the central star. By numerical simulations, I show that fragmentation of the aggregate by sintering occurs at a particular region of a protoplanetary nebula. The fragments accumulate at the region because their infalling velocity is low. The dust surface density exceeds the critical surface density required for gravitational instability to form planetesimals.

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