Recent progress on anomalous X-ray pulsars |
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Authors: | Victoria M Kaspi |
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Institution: | (1) Physics Department, McGill University, Montreal, Canada, H3A 2T8 |
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Abstract: | I review recent observational progress on Anomalous X-ray Pulsars, with an emphasis on timing, variability, and spectra. Highlighted
results include the recent timing and flux stabilization of the notoriously unstable AXP 1E 1048.1–5937, the remarkable glitches
seen in two AXPs, and the newly recognized variety of AXP variability types, including outbursts, bursts, flares, and pulse
profile changes. I also discuss recent discoveries regarding AXP spectra, including their surprising hard X-ray and far-infrared
emission, as well as the pulsed radio emission seen in one source. Much has been learned about these enigmatic objects over
the past few years, with the pace of discoveries remaining steady. However additional work on both observational and theoretical
fronts is needed before we have a comprehensive understanding of AXPs and their place in the zoo of manifestations of young
neutron stars.
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Keywords: | Pulsars Magnetars Variability X-ray spectra Timing |
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