Hydrodynamics of the hot component of the galactic halo. I - Steady state solutions

Details Hydrodynamics of the hot component of the galactic halo. I - Steady state solutions Hydrodynamics of the hot component of the galactic halo. I - Steady state solutions

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...371..571e&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 371, April 20, 1991, p. 571-577.

Statistics

Applications

8

Galactic Structure, Halos, Interstellar Gas, Magnetohydrodynamic Flow, Milky Way Galaxy, High Temperature Gases, Steady State, Thermal Stability

Scientific paper

The steady state solutions of the MHD equations, in which the effects of convection, thermal conduction, radiative losses, and gravity are retained in the energy equation, are examined. It is found that the values of velocity, temperature, and density at the Galactic disk highly influence the structure of the flow, which in some cases can be transonic. An inspection of the relative importance of the energy equation terms leads to the conclusion that Field's criterion is not applicable to determine the thermal instability properties of such solutions. Some applications to galactic fountains and/or chimney models are explored.

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