The ion composition of cooling, variable-density interstellar gas

Details The ion composition of cooling, variable-density interstellar gas The ion composition of cooling, variable-density interstellar gas

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63..470s&link_type=abstract

(Astronomicheskii Zhurnal, vol. 63, May-June 1986, p. 470-475) Soviet Astronomy (ISSN 0038-5301), vol. 30, May-June 1986, p. 281

Astronomy and Astrophysics

Astronomy

2

Gas Density, Gas Temperature, Interstellar Gas, Ion Density (Concentration), Periodic Variations, Rarefied Gas Dynamics, Pressure Distribution, Radiative Heat Transfer, Shock Wave Propagation, Time Dependence

Scientific paper

The ion composition of rarefied interstellar gas cooling from about one million K to about 10,000 K is calculated. The time dependence of logarithmic relative ion densities is determined in an isobaric-cooling model and in a model with an initial adiabatic expansion. It is shown that so long as T is greater than 10,000 K, the N(C IV)/N(O VI) ion density ratio may be used to test the origin of nonstable behavior.

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