[33.01] Overview of Disk/Halo Flows

AAS 200th meeting, Albuquerque, NM, June 2002
Session 33. Gaseous Galaxy Halos and Edges of Disk Galaxies
Topical Session Oral, Tuesday, June 4, 2002, 8:30-10:00am, 10:45am-12:30pm, 2:00-3:30pm, 3:45-5:30pm, Ballroom A

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[33.01] Overview of Disk/Halo Flows

K. Ferriere (Observatoire Midi-Pyrenees, Toulouse)

I will start by presenting the different constituents of the Interstellar Medium of our Galaxy: ordinary matter (gas and dust), cosmic rays, and magnetic fields. I will then explain how the powerful winds and supernova explosions of the most massive stars forge the structure of the Interstellar Medium and drive a convective cycle of interstellar matter between the disk and the halo -- the so-called Galactic fountain. Finally, I will discuss the important role played by magnetic fields and, to a lesser extent, by cosmic rays in the different stages of the Galactic fountain cycle.

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