563 citations · 2.9k across the 17 of their papers we have counts for
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astro-ph2000★ 506 cited
First Results from the X-ray and Optical Survey of the Chandra Deep Field South
R. Giacconi, P. Rosati, P. Tozzi +8
We present our first results from 130 ks of X-ray observations obtained with the Advanced CCD Imaging Spectrometer on the Chandra X-ray Observatory. We reach a flux of 2 X 10^(-16)…
astro-ph2000★ 5 cited
The contribution of Narrow-Line Seyfert 1 galaxies to the soft X-ray background
G. Hasinger, I. Lehmann, M. Schmidt +5
The ROSAT Ultradeep HRI survey in the Lockman Hole contains a complete sample of 91 X-ray sources with fluxes in the 0.5-2 keV band larger than 1.2 times 10e-15 erg cm-2 s-1, where…
astro-ph2000★ 563 cited
The Northern ROSAT All-Sky (NORAS) Galaxy Cluster Survey I: X-ray Properties of Clusters Detected as Extended X-ray Sources
H. Boehringer, W. Voges, J. P. Huchra +11
In the construction of an X-ray selected sample of galaxy clusters for cosmological studies, we have assembled a sample of 495 X-ray sources found to show extended X-ray emission i…