Personal profile

Research Interests

Interstellar and circumstellar medium, star formation and feedback, Magellanic Clouds, dust disks around white dwarfs

Professional Information

I study interactions between stars and the interstellar medium, including HII regions, planetary nebulae, supernova remnants, superbubbles, and supergiant shells.  Multi-wavelength observations from radio to gamma ray are used to study the formation of massive stars, energy feedback, and physics of interfaces and shocks.

I also use X-ray and infrared observations of white dwarfs to diagnose unusual phenomena that could be associated with binary interactions or planetary systems.


PhD, Astronomy, University of California, Berkeley, 1981

Honors & Awards

Lindheimer Fellow, Northwestern University, 1984
Associate, Center for Advanced Study, U of Illinois, 2003


Fall 2013 - ASTR 401
Fall 2013 - ASTR 404

Office Address

122 Astronomy Building, MC-221
1002 W. Green St.
Urbana, IL 61801

Office Phone


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