TY - JOUR
T1 - Growth of cosmic dust aggregates and reexamination of particle interaction models
AU - Tanaka, Hidekazu
AU - Wada, Koji
AU - Suyama, Toru
AU - Okuzumi, Satoshi
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - Dust growth is the first step of planet formation in protoplanetary disks. Dust growth also influences the temperature of protoplanetary disks. However, we still have a large uncertainty in the dust growth process. This uncertainty mainly comes from unknown factors in dust internal structure and collisional outcomes. The dust structure and the collisional outcome would be closely related with each other. In recent years, many theoretical studies on aggregate collisions and growth have been done. In the present paper, we introduce remarkable results in these theoretical studies, mainly focusing on numerical simulations of dust collisions by our group. In the numerical simulations of dust collisions, we adopt the interaction model between constituent particles of dust aggregates. We have started the rexamination of the particle interaction model, by performing molecular dymnamics simulation of particle collisions. We also report the preliminary results of our molecular dynamics simulations.
AB - Dust growth is the first step of planet formation in protoplanetary disks. Dust growth also influences the temperature of protoplanetary disks. However, we still have a large uncertainty in the dust growth process. This uncertainty mainly comes from unknown factors in dust internal structure and collisional outcomes. The dust structure and the collisional outcome would be closely related with each other. In recent years, many theoretical studies on aggregate collisions and growth have been done. In the present paper, we introduce remarkable results in these theoretical studies, mainly focusing on numerical simulations of dust collisions by our group. In the numerical simulations of dust collisions, we adopt the interaction model between constituent particles of dust aggregates. We have started the rexamination of the particle interaction model, by performing molecular dymnamics simulation of particle collisions. We also report the preliminary results of our molecular dynamics simulations.
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U2 - 10.1143/PTPS.195.101
DO - 10.1143/PTPS.195.101
M3 - Article
AN - SCOPUS:84864573291
SP - 101
EP - 113
JO - Progress of Theoretical Physics Supplement
JF - Progress of Theoretical Physics Supplement
SN - 0375-9687
IS - 195
ER -