SelfOrganization of Cosmic Radiation Pressure Instability. II. Onedimensional Simulations
Abstract
The clustering of statistically uniform discrete absorbing particles moving solely under the influence of radiation pressure from uniformly distributed emitters is studied in a simple onedimensional model. Radiation pressure tends to amplify statistical clustering in the absorbers; the absorbing material is swept into empty bubbles, the biggest bubbles grow bigger almost as they would in a uniform medium, and the smaller ones get crushed and disappear. Numerical simulations of a onedimensional system are used to support the conjecture that the system is selforganizing. Simple statistics indicate that a wide range of initial conditions produce structure approaching the same selfsimilar statistical distribution, whose scaling properties follow those of the attractor solution for an isolated bubble. The importance of the process for largescale structuring of the interstellar medium is briefly discussed.
 Publication:

The Astrophysical Journal
 Pub Date:
 January 1992
 DOI:
 10.1086/170856
 Bibcode:
 1992ApJ...384..111H
 Keywords:

 Astronomical Models;
 Cosmic Rays;
 Interstellar Matter;
 Radiation Pressure;
 Astrophysics;
 Particle Motion;
 Self Organizing Systems;
 Astrophysics;
 INSTABILITIES;
 RADIATION MECHANISMS: MISCELLANEOUS