Woods, Peter M. and Kaspi, Victoria M. and Gavriil, Fotis P. and Airhart, Carol (2011) The 2006 Outburst of the Magnetar CXOU J164710.2 – 455216. Astrophysical Journal, 726 (1). p. 37. ISSN 0004-637X http://resolver.caltech.edu/CaltechAUTHORS:20110131-114328138
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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 3σ upper limit on any fractional frequency increase at the time of the outburst of Δν/ν < 1.5 × 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 × 10^(13) 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.
|Additional Information:||© 2011 American Astronomical Society. Received 2009 July 13; accepted 2010 October 19; published 2010 December 13. The authors wish to thank the referee for useful comments and the CXC help desk for guidance on the Chandra spectral analysis. P.M.W. is grateful for support from NASA through SAO grant GO7-8077A. V.M.K. thanks the California Institute of Technology for hospitality and acknowledges support from a Moore Scholarship, NSERC via a Discovery Grant, CIFAR, FQRNT, the Canada Research Chairs Program, and the Lorne Trottier Chair in Astrophysics and Cosmology.|
|Subject Keywords:||pulsars: individual (CXOU J164710.2-455216); stars: individual (CXOU J164710.2-455216); stars: magnetars; stars: neutron|
|Classification Code:||PACS: 97.60.Jd; 97.10.Ri; 97.60.Gb; 97.80.Jp|
|Official Citation:||Peter M. Woods et al. 2011 ApJ 726 37 doi: 10.1088/0004-637X/726/1/37|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||31 Jan 2011 21:57|
|Last Modified:||26 Dec 2012 12:53|
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