Growth and Migration of Dust in the Jovian Subnebula : Investigation of the Possibility of Satellitesimals Formation

Abstract

We study processes of dust growth in the Jovian subnebula, the first stage of the Galilean satellite formation. To form satellitesimals, the time of dust growth is shorter than that of dust falling to Jupiter. We perform a numerical calculation for the growth time taking into account the effect of imperfect sticking. Comparing it to the falling time, we discuss the possibility of satellitesimals formation. The result indicates that the formation is difficult without considering the effect of dust concentration or the mechanism to increase critical velocity for sticking.