Siebert, J.; Brinkmann, W.; Drinkwater, M. J.; Yuan, W.; Francis, Paul; Peterson, B. A.; Webster, R. L.
We investigate the X-ray properties of the Parkes sample of flat-spectrum radio sources using data from the ROSAT All-Sky Survey and archival pointed PSPC observations. In total, 163 of the 323 sources are detected. For the remaining 160 sources, 2σ upper limits to the X-ray flux are derived. We present power-law photon indices in the 0.1–2.4 keV energy band for 115 sources, which were determined either with a hardness ratio technique or from direct fits to pointed PSPC data if a sufficient...[Show more]
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