Titlebook: Diffuse Matter from Star Forming Regions to Active Galaxies; A Volume Honouring J T.W. HARTQUIST,J.M. PITTARD,S.A.E.G. FALLE Book 2007 Spri

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Wind-Blown Bubbles around Evolved StarsMost stars will experience episodes of substantial mass loss at some point in their lives. For very massive stars, mass loss dominates their evolution, although the mass loss rates are not known exactly, particularly once the star has left the main sequence.

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Mass-Loaded FlowsA key process within astronomy is the exchange of mass, momentum, and energy between diffuse plasmas in many types of astronomical sources (including planetary nebulae (PNe), wind-blown bubbles (WBBs), supernova remnants (SNRs), starburst superwinds, and the intracluster medium) and dense, embedded clouds or clumps.

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The Effects of Cosmic Rays on Interstellar DynamicsAlmost all models of interstellar dynamics have been of a hydrodynamic nature. However, the magnetic and cosmic ray pressures are comparable to the thermal pressure throughout a sizable fraction of the volume of the interstellar medium (e.g. Ferrière 1998).

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State-Dependent Parameter (SDP) Estimationdiation, forming regions of almost entirely ionized gas in their surroundings. The dynamics of an Hii region depend on the history of the illumination and the initial structure of the surrounding medium.