People Type: Emeriti

Biography Research Interests Stellar winds; hot star X-ray astronomy; wind diagnostics. Introduction to Stellar Winds | Publications

Biography Research Interests Techniques: Radio and IR astronomy Science Interests: star formation; physics of the interstellar medium; large scale Galactic structure; structure, properties, and evolution of HII regions CV (PDF)

Biography Research Interests What are the structures of present day galaxies, how are they evolving, and in what ways do they connect to their cosmic environments?  My research addresses these and related questions from an observational perspective with an emphasis on less massive galaxies. Active binary stars such as novae also remain an area of …

Biography Research Interests Instrumental, observational, and analytical applications of astronomical polarimetry; optical studies of stellar envelopes and the polarization that arises from scattering by interstellar dust. CV (PDF) | Personal Website | Publications

Biography Galaxies in the Universe: An Introduction (Sparke & Gallagher) This upper-level undergraduate textbook was first published in October 2000 by Cambridge University Press. The Second Edition was published in February 2007. It won the American Astronomical Society’s 2008 Chambliss Astronomical Writing Award. Click here for the Table of Contents and Errata for both editions, …