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Surface magnetic fields across the HR Diagram

Published online by Cambridge University Press:  24 July 2015

John D. Landstreet
John D. Landstreet*
Affiliation:
Dept of Physics & Astronomy, University of Western Ontario, London, Canada, and Armagh Observatory, College Hill, Armagh, Northern Ireland email: jlandstr@uwo.ca
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Abstract

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The past 20 years have seen remarkable advances in spectropolarimetric instrumentation that have allowed us, for the first time, to identify some magnetic stars in most major stages of stellar evolution. We are beginning to see the broad outline of how such fields change during stellar evolution, to confront theoretical hypotheses and models of magnetic field structure and evolution with detailed data, and to understand more of the ways in which the presence of a field in turn affects stellar structure and evolution.

Keywords

Magnetic fieldspolarizationinstrumentation: polarimetersstars: atmospheresstars: magnetic fields

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