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Chapter
Spectral Modeling in Astrophysics—The Physics of Non-equilibrium Clouds
Collisional-radiative spectral modeling plays a central role in astrophysics, probing phenomena ranging from the chemical evolution of the Universe to the energy production near supermassive black holes in dis...
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Chapter and Conference Paper
Laboratory experiments to study supersonic astrophysical flows interacting with clumpy environments
A wide variety of objects in the universe drive supersonic outflows through the interstellar medium which is often highly clumpy. These inhomogeneities affect the morphology of the shocks that are generated. T...
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Chapter and Conference Paper
Photoionized Flows from Magnetized Globules
Low mass star formation may be triggered by the dynamical effects of radiation fields and winds from massive stars on nearby molecular material. The columns of neutral material observed at the edges of many HI...
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Chapter
MHD Ionization Fronts
The structure and evolution of Hii regions has been described by Will Henney in this volume. Young massive stars emit copious fluxes of ultraviolet radiation, forming regions of almost entirely ionized gas in ...
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Chapter and Conference Paper
Numerical Simulations and Astrophysical Applications of Laboratory Jets at Omega
We have conducted experiments on the Omega laser at the University of Rochester that have produced jets of supersonic Ti impacting and being deflected by a ball of high density plastic. These mm-sized jets of ...
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Chapter
Line Forming Regions in Active Galaxies and Their Nuclei
The spectra of active galaxies and their nuclei are rich in emission and absorption line features. A major aim of present research is the development of self-consistent hydrodynamic models for the production o...
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Chapter and Conference Paper
All’s Knot Quiet on the Recombination Front
Molecular clouds are clumpy on length scales down to the limits of observational resolution. At least some ultracompact Hii regions (UCHiiR) may result from the interaction of a young early type star and this typ...
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Chapter and Conference Paper
Flows and Shocks in Active Galaxies and their Nuclei
Observations of active galactic nuclei imply that shocks must be an essential and important part of their structure. We outline the basic observations, and discuss those features which must be addressed by any...