THE SPHERICALLY SYMMETRIC GRAVITATIONAL COLLAPSE OF A CLUMP OF SOLIDS IN A GAS

• Published in: The Astrophysical journal Vol. 805; no. 1; pp. 42 - 18
• Main Authors: Shariff, Karim, Cuzzi, Jeffrey N.
• Format: Journal Article
• Language: English
• Published: United Kingdom The American Astronomical Society 20.05.2015
• Subjects: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; Clumps; Collapse; COMPARATIVE EVALUATIONS; Computer simulation; COMPUTERIZED SIMULATION; Density; DIFFERENTIAL EQUATIONS; EROSION; GRAVITATIONAL COLLAPSE; Joining; MASS; Mathematical models; NONLINEAR PROBLEMS; Nonlinearity; OSCILLATIONS; PARAMETRIC ANALYSIS; PLANETS; planets and satellites: formation; protoplanetary disks; PROTOPLANETS; SATELLITES; SOLAR NEBULA; STOKES NUMBER; SYMMETRY

ABSTRACT In the subject of planetesimal formation, several mechanisms have been identified that create dense particle clumps in the solar nebula. The present work is concerned with the gravitational collapse of such clumps, idealized as being spherically symmetric. Fully nonlinear simulations using...