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Cloud-Particle Dynamics and Star Formation in Spiral Galaxies

Published online by Cambridge University Press:  04 August 2017

W. W. Roberts Jr. ,
M. A. Hausman  and
F. H. Levinson
W. W. Roberts Jr.
Affiliation:
University of Virginia, Charlottesville, Virginia
M. A. Hausman
Affiliation:
University of Virginia, Charlottesville, Virginia
F. H. Levinson*
Affiliation:
University of Virginia, Charlottesville, Virginia
*
1Now at Bell Laboratories, Allentown, Pennsylvania.

Extract

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We study the gas in a spiral galaxy with a cloud-dominated “stellar association-perturbed” interstellar medium from the standpoint of a cloud-particle model. Through N-body computational simulations, we follow the time evolution of the system of gas clouds and the corresponding system of young stellar associations forming from the clouds. Basic physical processes are modeled in a three-step cyclic procedure: (1) dynamical propagation of the clouds and young stellar associations, (2) simulation of cloud-cloud collisions, and (3) formation of new associations of protostars that are triggered by the local mechanisms of cloud-cloud collisions and cloud interactions with existing young stellar associations.

Type
II. Spiral Structure
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 131 - 132
Copyright
Copyright © Reidel 1983