INVESTIGATIONS OF THEORETICAL PROBLEMS IN COSMICAL GAS DYNAMICS.

Abstract

Various aspects of the evolution of H II regions (gaseous nebulae) surrounding newly formed stars of early spectral types were examined. The evolution of an H II region during the formation of the exciting star was considered, and it is shown that there are two modes of evolution. Physical processes governing the temperature structure and ionization structure of an H II region and an ionization front were investigated. Corrections to the growth rates for the instability of an ionization front were computed. There was an unsuccessful attempt to construct a statistical mechanics of sound waves in an isothermal gas. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 18, 1966
Accession Number
AD0632705

Entities

People

  • Peter O. Vandervoort

Organizations

  • University of Chicago

Tags

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Dynamics
  • Gas Dynamics
  • Instability
  • Ionization
  • Mechanics
  • Personal Information Managers
  • Physics
  • Sound Waves
  • Statistical Mechanics
  • Waves

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Fluid Dynamics.
  • Theoretical Analysis.