Chandra Observations of the Anomalous X-ray Pulsar 1E 2259+58.6

Abstract

We present X-ray imaging, timing, and phase resolved spectroscopy of the anomalous X-ray pulsar 1E 2259+58.6 using the Chandra X-ray Observatory. The spectrum is well described by a power law plus blackbody model with power law index = 3.6(1), kT_BB = 0.412(6) keV, and N_H=0.93(3) x 10^{22} cm^{-2}; we find no evidence for spectral features (0.5-7.0 keV). We derive a new, precise X-ray position for the source and determine its spin period, P=6.978977(24) s. Time resolved X-ray spectra show no significant variation as a function of pulse phase. We have detected excess emission beyond 4 arcsec from the central source extending to beyond 100 arcsec, due to the supernova remnant and possibly dust scattering from the interstellar medium.

13 pages, 4 figures, to be published in ApJL

References in corpus (3)

• Anomalous X-ray Pulsars and Soft Gamma-Ray Repeaters in supernova remnants
• A possible faint near-infrared counterpart to the AXP 1E~2259+58.6
• Constraints on Thermal Emission Models of Anomalous X-ray Pulsars

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