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FUSE Observations of Variability in Hot-Star Winds
A. W. Fullerton, D. L. Massa, R. K. Prinja +3
New constraints on the large-scale wind structures responsible for discrete absorption components are obtained from far-ultraviolet time-series observations of O supergiants in the…
The Effects of Magnetic Fields on Line-Driven Hot-Star Winds
Asif ud-Doula, Stan Owocki
This talk summarizes results from recent MHD simulations of the role of a dipole magnetic field in inducing large-scale structure in the line-driven stellar winds of hot, luminous…
Magnetic Spin-Up of Line-Driven Winds
Stan Owocki, Asif ud-Doula
We summarize recent 2D MHD simulations of line-driven stellar winds from rotating hot-stars with a dipole magnetic field aligned to the star's rotation axis. For moderate to strong…
Mass Loss and Magnetospheres: X-rays from Hot Stars and Young Stellar Objects
Marc Gagne, David Cohen, Stanley Owocki +1
High-resolution X-ray spectra of high-mass stars and low-mass T-Tauri stars obtained during the first year of the Chandra mission are providing important clues about the mechanisms…
EUV/X-ray Emission and the Thermal and Ionization Structure of B Star Winds
David H. Cohen, Joseph P. Cassinelli, Joseph J. MacFarlane +1
We discuss the EUV and X-ray properties of B stars, focusing on CMa (B2 II) which is the only star with both emission lines and a photospheric continuum detected with EUVE. We…