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Anomalous X-ray pulsars and soft gamma-ray repeaters in supernova remnants

Published online by Cambridge University Press:  12 April 2016

B. M. Gaensler
B. M. Gaensler*
Affiliation:
Center for Space Research, Massachusetts Institute of Technology, 70 Vassar Street, Cambridge, MA 02139, USA; bmg@space.mit.edu

Abstract

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I consider the state of play regarding associations of supernova remnants (SNRs) with anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs). The three AXP/SNR associations are convincing, and are consistent with AXPs being young, low-velocity neutron stars. The three SGR/SNR associations are far more likely to be chance superpositions, and rely on SGRs being high velocity (>1000 km s−1) objects. These results imply either that AXPs evolve into SGRs, or that SGRs and AXPs represent different populations of object.

Type
Part 10. Anomalous X-Ray Pulsars and Magnetars
Information
International Astronomical Union Colloquium , Volume 177: Pulsar Astronomy - 2000 and Beyond , 2000 , pp. 703 - 706
Copyright
Copyright © Astronomical Society of the Pacific 2000

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