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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…
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…
Soft X-ray Emissions from Planets, Moons, and Comets
A. Bhardwaj
A wide variety of solar system bodies are now known to radiate in the soft x-ray energy (<5 keV) regime. These include planets (Earth, Jupiter, Venus, Saturn, Mars): bodies having…
Chandra X-ray Observations of the Spiral Galaxy M81
Douglas A. Swartz, Kajal K. Ghosh, Michael L. McCollough +3
A Chandra X-Ray Observatory ACIS-S imaging observation is used to study the population of X-ray sources in the nearby Sab galaxy M81 (NGC 3031). A total of 177 sources are detected…
Chandra Discovery of Luminous Supersoft X-Ray Sources in M81
Douglas Swartz, Kajal Ghosh, Valery Suleimanov +2
A Chandra ACIS-S imaging observation of the nearby galaxy M81 (NGC 3031) reveals 9 luminous soft X-ray sources. The local environments, X-ray spectral properties, and X-ray light c…
Discovery of Soft X-Ray Emission from Io, Europa and the Io Plasma Torus
Ronald F. Elsner, G. Randall Gladstone, J. Hunter Waite +13
We report the discovery of soft (0.25--2 keV) x-ray emission from the Galilean satellites Io and Europa, probably Ganymede, and from the Io Plasma Torus (IPT). Bombardment by energ…