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Magnetars

Published online by Cambridge University Press:  12 April 2016

Christopher Thompson*
Affiliation:
University of North Carolina, Department of Physics and Astronomy, Chapel Hill, NC 27599

Abstract

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I summarize recent observational and theoretical advances in the understanding of the Soft Gamma Repeaters and the Anomalous X-ray Pulsars. Several direct physical arguments point to very strong magnetic fields (B > 10 BQED = 4.4 × 1014 G) in SGR outbursts. The connection between these two classes of neutron stars is examined. Their persistent X-ray emission and spindown behavior are interpreted in the magnetar model, where a decaying magnetic field dominates all other sources of energy for radiative and particle emission. The response of a magnetic field to the violent motions in a supernova core is also examined, with a focus on mechanisms that may impart unusually large kicks.

Type
Part 10. Anomalous X-Ray Pulsars and Magnetars
Copyright
Copyright © Astronomical Society of the Pacific 2000

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