Modeling the winds and magnetospheres of active OB stars

Details Modeling the winds and magnetospheres of active OB stars Modeling the winds and magnetospheres of active OB stars

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..272..148t&link_type=abstract

Active OB stars: structure, evolution, mass loss, and critical limits, Proceedings of the International Astronomical Union, IAU

Astronomy and Astrophysics

Astronomy

Magnetohydrodynamics: Mhd, Stars: Early-Type, Stars: Emission-Line, Stars: Magnetic Fields, Stars: Mass Loss, Stars: Rotation, Stars: Winds, Outflows

Scientific paper

After briefly reviewing the theory behind the radiative line-driven winds of OB stars, I examine the processes that can generate structure in them; these include both intrinsic instabilities, and surface perturbations such as pulsation and rotation. I then delve into wind channeling and confinement by magnetic fields as a mechanism for forming longer-lived circumstellar structures. With a narrative that largely follows the historical progression of the field, I introduce the key insights and results that link the first detection of a magnetosphere, over three decades ago, to the recent direct measurement of magnetic braking in a number of active OB stars.

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