Formation of Hot Intergalactic Gas by Gas Ejection from a Galaxy in an Early Explosive Era

Details Formation of Hot Intergalactic Gas by Gas Ejection from a Galaxy in an Early Explosive Era Formation of Hot Intergalactic Gas by Gas Ejection from a Galaxy in an Early Explosive Era

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977pthph..58.1742i&link_type=abstract

Progress of Theoretical Physics, Vol. 58, No. 6, pp. 1742-1758

Physics

31

Scientific paper

Chemical evolution of a galaxy in an early explosive era is studied by means of one zone model. Calculating the thermal properties of interstellar gas and the overlapping factor of expanding supernova-remnant shells, the gas escape conditions from a galaxy are examined. From these, it is shown that the total mass of ejected gas from a galaxy amounts to 10 ˜40 % of the initial mass of a galaxy. The ejected gas extends to the intergalactic space and the whole universe. The mass, the heavy-element abundance and other physical properties of thus formed intergalactic gas are investigated for various parameters of galactic evolution. Some other effects of gas release on the evolution of a galaxy and the evolution of the universe are discussed.

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