Browsing by Author "ee9276ae-e3b6-4e3e-a23d-c3f0e62c422e"
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Lansbury, G. B.; Alexander, D. M.; Aird, J.; Saez, C. (IOP Publishing Ltd, 2017)We identify sources with extremely hard X-ray spectra (i.e., with photon indices of Gamma less than or similar to 0.6) in the 13 deg(2) NuSTAR serendipitous survey, to search for the most highly obscured active galactic ...