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Deterministic Self-Propagating Star Formation

Published online by Cambridge University Press:  12 April 2016

Jan Palouš
Jan Palouš*
Affiliation:
Astronomical Institute of the Czechoslovak Academy of SciencesBudečská 6, 120 23 Prague 2, Czechoslovakia

Abstract

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The evolution of large scale expanding structures in differentially rotating disks is studied. High column densities in some places may eventually lead to molecular cloud formation and initiate also star-formation. After some time, multi-structured arms evolve, where regions of intensive star-formation are separated from each other by regions of atomic gas or molecular clouds. This is due to the deterministic nature and to the coherence of this process. A simple model of galactic evolution is introduced and the different behaviour of Sa, Sb, and Sc galaxies is shown.

Type
VII. The Structure of the Interstellar Medium
Information
International Astronomical Union Colloquium , Volume 120: Structure and Dynamics of the Interstellar Medium , 1989 , pp. 518 - 523
Copyright
Copyright © Springer-Verlag 1989

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