Galactic detonation waves - Numerical models illustrating the transition from deterministic to stochastic

Abstract

view Abstract Citations (3) References (2) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Galactic detonation waves - Numerical models illustrating the transition from deterministic to stochastic Freedman, W. L. ; Madore, B. F. ; Mehta, S. Abstract Using numerical techniques, the authors have followed the time evolution of blast waves detonated in differentially rotating disks. Predictions from an analytic treatment are tested and extended beyond the first annihilation of opposing wave fronts. Solitary wave solutions are confirmed for galaxy-wide deterministic blast waves propagating in one direction. While azimuthal components of these detonation waves do intersect, resulting in the decay of transient cusplike solutions, it is the finite size of the disk and the coherence of the blast wave, not the collision of wave fronts, that results in the final death of the propagation. When the blast wave is less coherent either because of shorter quiescent times or because of lower efficiencies of propagation, then the detonation is very long-lived and eventually fills the galaxy with randomly propagating fragments. Publication: The Astrophysical Journal Pub Date: July 1984 DOI: 10.1086/162219 Bibcode: 1984ApJ...282..412F Keywords: Detonation Waves; Galactic Evolution; Galactic Rotation; Shock Wave Propagation; Wave Fronts; Astronomical Models; Point Sources; Solitary Waves; Stochastic Processes; Astrophysics full text sources ADS |