The 2006 Outburst of the Magnetar CXOU J164710.2 – 455216

We report on data obtained with the Chandra, XMM-Newton, Suzaku, and Swift X-ray observatories, following the 2006 outburst of the Anomalous X-ray Pulsar CXOU J164710.2--455216. Using a more complete and higher signal-to-noise data set, we find no evidence for the very large glitch and rapid exponen...

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Bibliographic Details
Published in:The Astrophysical journal 2011-01, Vol.726 (1), p.37-jQuery1323912196473='48'
Main Authors: Woods, Peter M, Kaspi, Victoria M, Gavriil, Fotis P, Airhart, Carol
Format: Article
Language:English
Subjects:
Astronomy
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
COSMIC RADIO SOURCES
Earth, ocean, space
ELECTROMAGNETIC RADIATION
Exact sciences and technology
IONIZING RADIATIONS
MAGNETIC FIELDS
PULSARS
RADIATIONS
STARS
X RADIATION
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Summary:We report on data obtained with the Chandra, XMM-Newton, Suzaku, and Swift X-ray observatories, following the 2006 outburst of the Anomalous X-ray Pulsar CXOU J164710.2--455216. Using a more complete and higher signal-to-noise data set, we find no evidence for the very large glitch and rapid exponential decay as was reported previously for this source. We set a 3 Delta *s upper limit on any fractional frequency increase at the time of the outburst of Delta *D Delta *n/ Delta *n < 1.5 X 10--5. Our timing analysis, based on the longest time baseline yet, yields a spin-down rate for the pulsar that implies a surface dipolar magnetic field of ~9 X 1013 G, although this could be biased high by possible recovery from an undetected glitch. We also present an analysis of the source flux and spectral evolution, and find no evidence for long-term spectral relaxation post-outburst as was previously reported.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/726/1/37