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Chandra Observations of the Anomalous X-ray Pulsar 4U 0142+61
Sandeep K. Patel, Chryssa Kouveliotou, Peter M. Woods +7
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…
A Puzzling Paucity of Double Peaked X-ray Pulsars
T. Bulik, D. Gondek-Rosi{ń}ska, A. Santangelo +3
Accretion powered pulsars exhibit a variety of lightcurves. In this paper we propose to classify the observed lightcurves as single or double pulsed.We analyze the lightcurves of 8…
XTE J1946+274 = GRO J1944+26: An Enigmatic Be/X-ray Binary
Colleen. A. Wilson, Mark. H. Finger, M. J. Coe +1
XTE J1946+274 = GRO J1944+26 is a 15.8 s Be/X-ray pulsar discovered simultaneously in 1998 September with the Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray…
Hard X-ray lightcurves of High Mass X-ray binaries
S. G. T. Laycock, M. J. Coe, C. A. Wilson +2
Using the 9 years of continuous data now available from the Burst And Transient Source Experiment (BATSE) aboard CGRO, we have measured orbital periods and produced folded lightcur…
A Decade in the Life of EXO 2030+375: A Multi-wavelength Study of an Accreting X-ray Pulsar
Colleen A. Wilson, Mark H. Finger, M. J. Coe +2
Using BATSE and RXTE observations from 1991 April to 2001 August we have detected 71 outbursts from 82 periastron passages of EXO 2030+375, a 42-second transient X-ray pulsar with…