Variable and non-spherical stellar winds in luminous hot stars : proceedings of the IAU Colloquium no. 169, held in Heidelberg, Germany, 15-19 June 1998 / B. Wolf, O. Stahl, A.W. Fullerton (eds.).
By: (169th : IAU Colloquium (169th : 1998 : Heidelberg, Germany)
Contributor(s): Wolf, B. (Bernhard) | Stahl, O. (Otmar) | Fullerton, Alexander WMaterial type: TextSeries: Lecture notes in physics: 523.Publisher: Berlin ; New York : Springer, ©1999Description: 1 online resource (xx, 424 pages) : illustrationsContent type: text Media type: computer Carrier type: online resourceISBN: 9783540490623; 3540490620Subject(s): Early stars -- Congresses | Stellar winds -- Congresses | Étoiles des premiers types -- Congrès | Vents stellaires -- Congrès | Early stars | Stellar winds | Étoiles des premiers typesGenre/Form: Electronic books. | Conference papers and proceedings. Additional physical formats: Print version:IAU Colloquium (169th : 1998 : Heidelberg, Germany).: Variable and non-spherical stellar winds in luminous hot stars.DDC classification: 523.8/8 LOC classification: QB843.E2 | I28 1998Other classification: OX 85 Online resources: Click here to access online
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Includes bibliographical references and index.
I Observation of Non-spherical Winds: Rotationally Modulated Winds of O-Stars -- Rotationally Modulated Winds of BA-Type Supergiants -- Using Spectropolarimetry to Determine Envelope Geometry and Test Variability Models for Hot Star Circumstellar Envelopes -- Disks of Classical Be Stars -- II Theory of Non-spherical Winds: Wind-Compressed Disks -- Non-spherical Radiation-Driven Wind Models -- Radiation-Driven Disk Winds -- III Variable Winds: O-Star Wind Variability in the Ultraviolet and Optical Range -- X-Ray Evidence for Wind Instabilities -- IV Theories of Wind Variations: The Line-Driven Instability -- Co-Rotating Interaction Regions -in 2DHot-Star Wind Models with Line-Driven Instability -- V Pulsation: Pulsations in O-Stars -- Nonradial Pulsations of BA Supergiants and Be Stars -- Theory of Pulsational Instabilities of Hot Stars -- VI Evolutionary Aspects: The Evolution of Non-spherical and Non-stationary Winds of Massive Stars -- Rotation and Anisotropic Losses of Mass and Angular Momentum. lfvjb v vj bafkvj bafvk jbafv kajfv vkjb vkj bfvk jbfvk jbvk jbfvl advsdvl jbsdv lsjbvd ksvbjd kdvjb kjb.
There is abundant evidence that essentially all luminous hot-star winds contain time-dependent and anisotropic structures. IAU Colloquium 169 was convened to review the observations of variability and asphericity, to discuss the physical processes that might cause such behavior and to look for evolutionary consequences. The topics included OBA stars, Be stars, Wolf-Rayet stars, Be stars, and luminous blue variables (LBVs). The role played by rotation in shaping the stellar wind was a recurrent theme. Photospheric pulsations and/or magnetic fields are particularly appealing mechanisms for triggering the formation of recurrent wind structures.
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