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25 papers · 1 filter
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 multi-colour study of the dark GRB 000210 host galaxy and its environment
J. Gorosabel, L. Christensen, J. Hjorth +25
We present UBVRIZJsHKs broad band photometry of the host galaxy of the dark gamma-ray burst (GRB) of February 10, 2000. These observations represent the most exhaustive photometry…
Distance Determination of Variable Galactic Sources
J. Hu, S. N. Zhang, T. P. Li
We have developed a timing analysis method to determine the distances of variable galactic X-ray sources based on the method advanced by Trümper and Schönfelder in 1973. The light-…
A massive warm baryonic halo in the Coma cluster
M. Bonamente, M. K. Joy, R. Lieu
Several deep PSPC observations of the Coma cluster reveal a very large-scale halo of soft X-ray emission, substantially in excess of the well known radiation from the hot intra-clu…
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…
Chandra X-Ray Observatory observations of the globular cluster M28 and its millisecond pulsar B1821-24
W. Becker, D. A. Swartz, G. G. Pavlov +8
We report here the results of the first Chandra X-Ray Observatory observations of the globular cluster M28 (NGC 6626). 46 X-ray sources are detected, of which 12 lie within one cor…