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The Global Mass, Energy and Photoionization Balance of the Disk-Halo Interaction

Published online by Cambridge University Press:  03 August 2017

C. A. Norman
C. A. Norman*
Affiliation:
Johns Hopkins University, Department of Physics and Astronomy, and Space Telescope Science Institute

Abstract

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The observational evidence for chimney models of the interstellar medium is reviewed. The variation of the state of the interstellar medium of an external galaxy between the three-phase mode, the chimney mode and the two-phase mode as a function of: galaxy type, galactocentric radius within a given galaxy, and the time varying star formation rate is discussed.

In the context of the chimney models it is shown how the photoionization of the halo can be achieved by utilizing both direct ionizing rays from the central OB association and diffuse reradiation from the chimney walls that will create an extended low ionization halo around chimneys with SII/Hα ~ 0.5.

A number of considerations for future studies that are a direct result of the work discussed at this conference are outlined.

Type
III. Theory and Modelling
Information
Symposium - International Astronomical Union , Volume 144: The Interstellar Disk-Halo Connection in Galaxies , 1991 , pp. 337 - 344
Copyright
Copyright © Kluwer 1991 

References

REFERENCES

Braun, R. (1990) Ap. J. Suppl. 72, 755 CrossRefGoogle Scholar
Bregman, J.N., Harington, J.P. (1986) Ap. J. 309, 833 CrossRefGoogle Scholar
Brinks, E. (1990) in The Interstellar Medium in External Galaxies , ed. Thronson, H.A. and Shull, J. M. Google Scholar
Brinks, E. (1990) in The Interstellar Medium in Galaxies , ed. Thronson, H.A. and Shull, J. M., p. 39 (Kluwer)Google Scholar
Brinks, E. and Bajaja, E. (1986) Astr. Astrophys. 169, 14 Google Scholar
Chevalier, R.A., Fransson, C. (1984) Ap. J. (Letters) 275, L71 Google Scholar
Dettmar, R.J. (1990) Astron. Astrophys. 232, L15 Google Scholar
Deul, E.R. and den Hartog, R.H. (1990) Astron. Astrophys. 229, 362 Google Scholar
Dopita, M.A., Mathewson, D.S. and Ford, V.L. (1985) Ap. J. 297, 599 Google Scholar
Field, G.B., Goldsmith, D.W. and Habing, H.J. (1969) Ap. J. (Letters) 155, L149 Google Scholar
Heiles, C. (1990) Ap. J. 354, 483 Google Scholar
Heiles, C. (1987) Ap. J. 315, 555 CrossRefGoogle Scholar
Kamphuis, J. (1990) poster presented at this meeting Google Scholar
Li, F. and Ikeuchi, S. (1990) Ap. J. Suppl. 73, 401 CrossRefGoogle Scholar
Mathis, J.S. (1986) Ap.J. 301, 423 Google Scholar
McKee, C.F. and Ostriker, J.P. (1977) Ap. J. 218, 148 Google Scholar
Meaburn, J., Marston, A.P., McGee, R.X. and Newton, L.M. (1987) M.N.R.A.S. 225, 591.Google Scholar
Norman, C. A. and Ikeuchi, S. (1989) Ap. J. 345, 372 Google Scholar
Norman, C.A. and Panagia, N. (1990) Ap. J. , in preparation Google Scholar
Osterbrock, D.E. (1989) Astrophysics of Gaseous Nebulae and Active Galactic Nuclei (University Science Books)CrossRefGoogle Scholar
Rand, R.J., Kulkarni, S., and Hester, J.J. (1990) Ap. J. (Letters) 352, L1 Google Scholar
Reynolds, R.J. (1990) Ap. J. 349, L17 Google Scholar
Sciama, D.M. (1990) M.N.R.A.S. 244, 1p Google Scholar
Spitzer, L. (1978) Physical Processes in the Interstellar Medium (Wiley-Interscience)Google Scholar
Thuan, T.X. (1975) Ap. J. 198, 307 Google Scholar
Walterbos, R.A. (1990) these proceedings Google Scholar