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Instability and Variability of Hot-Star Winds - Proceedings of an International Workshop Held at Isle-aux-Coudres, Quebec Province, Canada 23-27 August, 1993 (Paperback, 1994 ed.)
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Instability and Variability of Hot-Star Winds - Proceedings of an International Workshop Held at Isle-aux-Coudres, Quebec Province, Canada 23-27 August, 1993 (Paperback, 1994 ed.)
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This specialized workshop was conceived during the workshop on "Non
isotropic and Variable Outflows from Stars", which was held at the
Space Telescope Science Institute in October, 1991. At that
meeting, the four of us collectively decided that the time was ripe
for an even more focussed discussion of the basic issues in the
area of hot-star wind instability and its observable
manifestations. Not that the big problems have been solved! Rather,
we are currently in a phase of rapid development, both with regard
to the models and to the observations. The key issue at this new
workshop would be to decide how the time-dependent structures
observed in hot-star winds (e. g. , NACs, DACs, blobs, clumps,
filaments, shells, puffs, jets, etc. ) relate to radiative and
other instabilities. Further questions concern the role of
turbulence and the nature of its driver, and the effect of stellar
rotation, pulsation, and magnetic fields on time-dependent
phenomena in hot-star winds. Of no less importance is the impact of
stellar wind variability on the derivation of mass-loss rates, on
stellar evolution, and on momentum/energy deposition in the
interstellar medium. To attain our goal of maximum confrontation
(in the positive sense!) we decided: (1) to limit the workshop to
the observers and theoreticians most active in this field in the
world; (2) to insist that virtually all participants present a
talk, thereby avoiding the distraction of poster sessions; and (3)
to allocate approximately half of the allotted time to discussion.
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