Chandra Observations of the Anomalous X-Ray Pulsar 4U 0142+61

@article{Patel2002ChandraOO,
  title={Chandra Observations of the Anomalous X-Ray Pulsar 4U 0142+61},
  author={Sandeep K. Patel and Chryssa Kouveliotou and Peter M. Woods and Allyn F. Tennant and Martin C. Weisskopf and Mark H. Finger and Colleen A. Wilson-Hodge and Ersin Goğuş and Michiel van der Klis and Tomaso M. Belloni},
  journal={The Astrophysical Journal},
  year={2002},
  volume={587},
  pages={367-372}
}
We present X-ray imaging, timing, and phase-resolved spectroscopy of the anomalous X-ray pulsar 4U 0142+61 using the Chandra X-Ray Observatory. The spectrum is well described by a power-law plus blackbody model with Γ = 3.35(2), kTBB = 0.458(3) keV, and NH = 0.91(2) × 1022 cm-2; we find no significant evidence for spectral features (0.5-7.0 keV). Time-resolved X-ray spectroscopy shows evidence for evolution in phase in either Γ, kTBB, or some combination thereof as a function of pulse phase. We… 
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References

SHOWING 1-10 OF 17 REFERENCES
THE DISCOVERY OF 8.7 SECOND PULSATIONS FROM THE ULTRASOFT X-RAY SOURCE 4U 0142+61
We discovered a periodicity at about 8.7s from the X--ray sources 4U0142+61, previously considered a possible black hole candidate on the basis of its ultrasoft spectrum. The pulsations are visible…
Rossi X-Ray Timing Explorer Observations of the Anomalous Pulsar 4U 0142+61
We observed the anomalous X-ray pulsar 4U 0142+61 using the Proportional Counter Array on board the Rossi X-Ray Timing Explorer in 1996 March. The pulse frequency was measured as ν=0.11510039(3) Hz,…
The Spectrum of the 8.7 s X-ray Pulsar 4U 0142+61
We investigate the properties of the 8.7 s X-ray pulsar 4U 0142+61 using new data obtained with the ASCA observatory and archival data from the Einstein and ROSAT observatories. New measurements of…
An optical counterpart to the anomalous X-ray pulsar 4U0142+61
TLDR
Deep optical observations of the field around 4U0142+61, which is the brightest AXP in X-rays, are reported, and an object with peculiar optical colours at the position of the X-ray source is found, and it is argued that it is the optical counterpart.
Study of the Long Term Stability of two Anomalous X-ray Pulsars 4U 0142+61 and 1E 1048.1-5937 with ASCA
We present new observations of two anomalous X-ray pulsars (AXPs), 4U 0142+61 and 1E 1048.1-5937, made in 1998 with ASCA. The energy spectrum of each of these two AXPs is found to consist of two…
Anomalous X-ray pulsars and soft gamma-ray repeaters in supernova remnants
Important constraints on the properties of the anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) can be provided by their associations with supernova remnants (SNRs). We have made a…
The fourth Uhuru catalog of X-ray sources.
Positions and intensities are presented for 339 X-ray sources observed by the Uhuru (SAS A) X-ray satellite observatory. We find good agreement between the sources in this catalog and those in the 3U…
Merger Shocks in Galaxy Clusters A665 and A2163 and Their Relation to Radio Halos
We present Chandra gas temperature maps for two hot, intermediate-redshift clusters, A665 and A2163. Both show strong temperature variations in their central r = 0.5 h-1 Mpc regions, naturally…
Initial performance of the aspect system on the Chandra Observatory: postfacto aspect reconstruction
The aspect system of the Chandra Observatory plays a key role in realizing the full potential of Chandra's X-ray optics and detectors. To achieve the highest spatial and spectral resolution (for…
Solar-system abundances of the elements
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