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Stellar MagnetismSecond Edition$
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Leon Mestel

Print publication date: 2012

Print ISBN-13: 9780199641741

Published to Oxford Scholarship Online: May 2012

DOI: 10.1093/acprof:oso/9780199641741.001.0001

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The early-type magnetic stars

The early-type magnetic stars

(p.407) 9 The early-type magnetic stars
Stellar Magnetism

Leon Mestel

Oxford University Press

Chapters 4 and 5 discussed various aspects of the interaction between the magnetic field and the thermal-gravitational-rotational fields in different stellar domains. This chapter broadens the discussion with an eye to the understanding of those early-type stars, numbering over 200, which show surface magnetic fields, detectable through the Zeeman effect. The discussion covers the stability of large-scale stellar magnetic fields; the dynamics of the oblique rotator and the Eulerian nutation and the consequent internal motions; non-uniform rotation and the oblique rotator model; models of rotating magnetic stars; magnetic torques acting on the oblique rotator and spin-down, spin-up, and changes in obliquity; the origin of the field; abundance anomalies; and the rapidly oscillating Ap (roAp) phenomenon.

Keywords:   magnetic fields, thermal-gravitational-rotational fields, early-type stars, Zeeman effect, oblique rotator, Eulerian nutation, magnetic torque, rapidly oscillating Ap phenomenon

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