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Physics & Astronomy

Phone: 715-836-3165


B.A., Major: Physics, Gustavus Adolphus College, St. Peter, Minnesota, May 1997
Ph.D. in Astronomy, Physics Minor, University of Wisconsin-Madison, July 2002 


Doctoral Thesis: "Understanding the High-Resolution X-Ray Spectra of Early Type Stars" ( postscript, gzipped ps , pdf ) PASP summary

XMM-Newton observations of beta Centauri (B1 III): The temperature structure in the hot plasma and the photosphere-wind connection

High-Resolution X-Ray Spectra of the Brightest OB Stars in the Cygnus OB2 Association
(with UWEC student Justin Reiter)

High-resolution XMM-Newton X-ray spectra of tau SCORPII

High-Resolution Chandra Spectroscopy of tau Scorpii: A Narrow-Line X-Ray Spectrum from a Hot Star

High-resolution X-ray spectroscopy of tau Scorpii (B0.2V) with XMM-Newton

Metallicities of Old Open Clusters

A Magnetically-Torqued Model for Be Star Disks
( A press release describing our results ) ( Another version. )

New Challenges for Wind Shock Models: The Chandra Spectrum of the Hot Star Delta Ori

The review article: "Recent Progress in Understanding the X-ray Sources in Hot Star Winds" for the meeting "Stellar Coronae in the Chandra and XMM-Newton Era" (pdf, gzipped postscript)

The meeting "Two years of Science with Chandra" (Wash. D.C., Sept. 5-7) ( page-sized gzipped ps poster )

The St. Paul Chandra meeting (July 2001): A comparison of the X-ray spectra of Delta Ori and Zeta Pup, The full Proceedings article,The full-size poster, A page-sized poster

Chandra Detection of Doppler-shifted X-Ray Line Profiles from the Wind of zeta Puppis (O4 F)

The Effects of Magnetic Fields on the Winds of Hot Stars, from Variable and Non-spherical Stellar Winds in Luminous Hot Stars, IAU Colloquium No. 169, B. Wolf, O. Stahl, and A. W. Fullerton, eds.